From 7c2379d55bd25e213983079e30ce1ef761c38d84 Mon Sep 17 00:00:00 2001
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 <hitoshi1964@gmail.com>
Date: Fri, 4 Sep 2026 22:47:55 +0900
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押すと列の一覧が出ていた。マイグレーションを書いたのは自分なので、列の構成は
知っている。**押した動機は中身を見ることだった。**

- 既定タブを Data にした。列と索引は 1 クリック先
- **タブが操作をまたいで保たれる。** panel は htmx で丸ごと差し替わるので、
  列を 1 つ直すたびに先頭のタブへ弾き飛ばされていた。同じテーブルの中では
  いま見ていたタブに留まり、別のテーブルへ移れば Data から始める
- 50 行で打ち切って 51 行目を見る手段が無かったのを、**1000 行ずつのページ送り**に
  した（100 / 500 / 1000 / 5000 から選べる）

**並び順は主キー。** 順序を指定しない LIMIT/OFFSET は速いが、PostgreSQL は行の
順序を約束しないので、めくると同じ行が二度出たり、どこにも出ない行ができる ──
ページャの体裁で嘘をつくことになる。実測（Airlines・236 万行）: 主キー順は先頭
7 ms・最深部 878 ms、順序なしは 50 ms だが正しくない。主キーが無いテーブルでは
並べようがないので、そう画面に書く。

**総数は統計の推定で、推定だと書く。** count(*) は開くたびの全走査になる。
ただし「次のページがあるか」は推定ではなく**返ってきた行数**で決める ──
統計が古いと「次へ」が空振りし、それは総数が少しずれているより体験として悪い。

画面から来た page / rows は allow-list に通してから使う。壊れた値は黙って既定へ
落とす（ここでエラーを出しても、利用者にできることが無い）。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XkRWmyQf9Rt3sYjjkPSq4Y
---
 CHANGELOG.md                    |  27 ++++
 core/engines/base.py            |  64 ++++++++-
 core/engines/mysql.py           |  29 +++-
 core/engines/mysql_sql.py       |  16 +++
 core/engines/pg_sql.py          |  24 +++-
 core/engines/postgres.py        |  44 +++++-
 core/tests.py                   |  97 +++++++++++++
 core/views/tables.py            |  39 ++++-
 locale/ja/LC_MESSAGES/django.mo | Bin 67318 -> 67999 bytes
 locale/ja/LC_MESSAGES/django.po | 244 ++++++++++++++++++++------------
 planner_lab/tests.py            |   3 +
 templates/partials/detail.html  |  61 +++++++-
 12 files changed, 536 insertions(+), 112 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e5346e6..b38a4b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,33 @@ Versioning convention for this project:
 
 ## [Unreleased]
 
+### Changed
+
+- **Clicking a table now shows its rows, not its column list.** You wrote the
+  migration; you know what the columns are. What you clicked the table to see
+  is what is in it. Columns and Indexes are one click away, and the tab you are
+  on now survives an edit — changing a column used to throw you back to the
+  first tab every time the panel re-rendered.
+
+- **The row grid is paged: 1,000 rows at a time, and you can change that**
+  (100 / 500 / 1,000 / 5,000). It used to show the first 50 rows and stop, with
+  no way to see row 51.
+
+  **Pages are ordered by the primary key.** `LIMIT`/`OFFSET` without an
+  `ORDER BY` is faster, but PostgreSQL does not promise an order, so paging
+  through would show some rows twice and never show others — a pager that
+  lies. Measured on the bundled Airlines demo (2,360,335 rows): the first page
+  takes 7 ms ordered, the last 878 ms; unordered it is 50 ms and wrong. On a
+  table with no primary key there is nothing to order by, and the pager says
+  so rather than pretending.
+
+  **The total is the statistics estimate, labelled as one** — `count(*)` would
+  scan the whole table every time you opened it. Whether a *next* page exists
+  is decided by how many rows actually came back, not by the estimate: stale
+  statistics make a "next" that lands on nothing, which is worse than a total
+  that is slightly off.
+
+
 ### Fixed
 
 - **The table list showed 0 rows for tables that were not empty.** The bundled
diff --git a/core/engines/base.py b/core/engines/base.py
index 347c4c6..f6c942c 100644
--- a/core/engines/base.py
+++ b/core/engines/base.py
@@ -122,8 +122,63 @@ def has_gin(self) -> bool:
 
 @dataclass
 class Preview:
+    """テーブルの中身、1 ページぶん。
+
+    行数は数えない ── `count(*)` は 236 万行のテーブルで毎回全走査になる。
+    プランナ統計の推定を使い、**推定であることを画面でも言う**
+    （TRUNCATE / DROP の確認と同じ規則）。
+    """
+
     columns: list[str]
     rows: list[tuple]
+    # 何行目から返したか（0 始まり）と、1 ページの大きさ。
+    offset: int = 0
+    page_size: int = 1000
+    # テーブル全体の推定行数。統計がまだ無ければ None ＝「不明」。
+    estimated_rows: int | None = None
+    # 並び順に使った列。**空なら順序は保証されない** ── 主キーが無いテーブルでは
+    # ページをめくると行が重複したり飛んだりしうるので、そう言う。
+    ordered_by: list[str] = field(default_factory=list)
+
+    @property
+    def page(self) -> int:
+        """1 始まりのページ番号。"""
+        return self.offset // self.page_size + 1
+
+    @property
+    def first_row(self) -> int:
+        """このページの先頭が、テーブル全体の何行目か（1 始まり）。"""
+        return self.offset + 1 if self.rows else 0
+
+    @property
+    def last_row(self) -> int:
+        """このページの末尾が、テーブル全体の何行目か。"""
+        return self.offset + len(self.rows)
+
+    @property
+    def stable(self) -> bool:
+        """ページ送りが安定しているか（＝並び順が決まっているか）。"""
+        return bool(self.ordered_by)
+
+    @property
+    def has_previous(self) -> bool:
+        return self.offset > 0
+
+    @property
+    def has_next(self) -> bool:
+        """次のページがあるか。
+
+        推定に頼らず、**返ってきた行数で判断する** ── 統計は古いことがあり、
+        「次へ」が空振りするのは、行数が少し違うより体験として悪い。
+        取れた行がページ一杯なら、次があると見なす。
+        """
+        return len(self.rows) == self.page_size
+
+    @property
+    def estimated_pages(self) -> int | None:
+        if self.estimated_rows is None:
+            return None
+        return max(1, -(-self.estimated_rows // self.page_size))
 
 
 @dataclass
@@ -1034,8 +1089,13 @@ def jsonb_shape(self, schema: str, table: str, column: str, *,
         empty; the caller checks supports() first."""
         raise NotImplementedError
 
-    def preview_rows(self, schema: str, table: str, limit: int = 50) -> Preview:
-        """First rows of a table. The Web equivalent of `SELECT * ... LIMIT n`."""
+    def preview_rows(self, schema: str, table: str, limit: int = 1000,
+                     offset: int = 0) -> Preview:
+        """テーブルの中身を 1 ページぶん。`SELECT * … ORDER BY 主キー LIMIT n OFFSET m`。
+
+        並び順を決めないとページ送りで行が重複・欠落するので、主キーがあれば必ず
+        それで並べる。行数は数えず、統計の推定を返す。詳細は PostgresEngine 側に。
+        """
         raise NotImplementedError
 
     def run_query(self, sql: str, *, max_rows: int = 1000,
diff --git a/core/engines/mysql.py b/core/engines/mysql.py
index a9e1190..c12eb96 100644
--- a/core/engines/mysql.py
+++ b/core/engines/mysql.py
@@ -68,6 +68,8 @@
     LIST_INDEXES_SQL,
     LIST_ROLES_SQL,
     LIST_TABLES_SQL,
+    PRIMARY_KEY_COLUMNS_SQL,
+    ESTIMATED_ROWS_SQL,
     TABLE_COMMENT_SQL,
     TABLE_SIZES_SQL,
     UNUSED_INDEXES_SQL,
@@ -365,14 +367,33 @@ def table_comment(self, schema: str, table: str) -> str | None:
                 # MySQL returns '' (not NULL) for no comment; normalise.
                 return (row[0] or None) if row else None
 
-    def preview_rows(self, schema: str, table: str, limit: int = 50) -> Preview:
-        query = f"SELECT * FROM {_ident(schema)}.{_ident(table)} LIMIT %s"  # nosec B608 — identifiers go through _ident (backtick-quoted); limit is bound as %s
+    def preview_rows(self, schema: str, table: str, limit: int = 1000,
+                     offset: int = 0) -> Preview:
+        """PostgreSQL 側と同じ規則 ── 主キー順、行数は推定。理由はそちらに。"""
+        order_cols = self._primary_key_columns(schema, table)
+        order = ""
+        if order_cols:
+            order = " ORDER BY " + ", ".join(_ident(c) for c in order_cols)
+        query = (f"SELECT * FROM {_ident(schema)}.{_ident(table)}"  # nosec B608 — identifiers go through _ident (backtick-quoted); limit/offset are bound as %s
+                 f"{order} LIMIT %s OFFSET %s")
         with self._connect() as conn:
             with conn.cursor() as cur:
-                cur.execute(query, (limit,))
+                cur.execute(query, (limit, offset))
                 columns = [d[0] for d in cur.description]
                 rows = cur.fetchall()
-        return Preview(columns=columns, rows=list(rows))
+                cur.execute(ESTIMATED_ROWS_SQL, (schema, table))
+                row = cur.fetchone()
+                estimated = None if not row or row[0] is None else int(row[0])
+        return Preview(columns=columns, rows=list(rows), offset=offset,
+                       page_size=limit, estimated_rows=estimated,
+                       ordered_by=order_cols)
+
+    def _primary_key_columns(self, schema: str, table: str) -> list[str]:
+        """主キーの列を、定義順で。無ければ空。"""
+        with self._connect() as conn:
+            with conn.cursor() as cur:
+                cur.execute(PRIMARY_KEY_COLUMNS_SQL, (schema, table))
+                return [r[0] for r in cur.fetchall()]
 
     # --- ad-hoc queries --------------------------------------------------
 
diff --git a/core/engines/mysql_sql.py b/core/engines/mysql_sql.py
index 479e1b7..a4b98f4 100644
--- a/core/engines/mysql_sql.py
+++ b/core/engines/mysql_sql.py
@@ -197,3 +197,19 @@
 WHERE object_schema = %s
 ORDER BY object_name, index_name;
 """
+
+
+# 主キーの列を定義順で。ページ送りの並び順に使う。
+PRIMARY_KEY_COLUMNS_SQL = """
+SELECT COLUMN_NAME
+FROM information_schema.KEY_COLUMN_USAGE
+WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s AND CONSTRAINT_NAME = 'PRIMARY'
+ORDER BY ORDINAL_POSITION;
+"""
+
+# 1 テーブルの推定行数。InnoDB では統計からの推定で、無ければ NULL。
+ESTIMATED_ROWS_SQL = """
+SELECT TABLE_ROWS
+FROM information_schema.TABLES
+WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s;
+"""
diff --git a/core/engines/pg_sql.py b/core/engines/pg_sql.py
index 2ec88de..1a854fa 100644
--- a/core/engines/pg_sql.py
+++ b/core/engines/pg_sql.py
@@ -749,4 +749,26 @@
 ) AS sml
 ORDER BY wasted_bytes DESC
 LIMIT {limit};
-"""
\ No newline at end of file
+"""
+
+# 主キーの列を定義順で。ページ送りの並び順に使う ── 順序を指定しないと
+# PostgreSQL は行の順序を約束せず、ページをめくると重複や欠落が起きる。
+PRIMARY_KEY_COLUMNS_SQL = """
+SELECT a.attname
+FROM pg_catalog.pg_index i
+JOIN pg_catalog.pg_class c      ON c.oid = i.indrelid
+JOIN pg_catalog.pg_namespace n  ON n.oid = c.relnamespace
+JOIN pg_catalog.pg_attribute a  ON a.attrelid = c.oid
+                               AND a.attnum = ANY(i.indkey)
+WHERE n.nspname = %s AND c.relname = %s AND i.indisprimary
+ORDER BY array_position(i.indkey, a.attnum);
+"""
+
+# 1 テーブルの推定行数。count(*) は全走査になるので使わない。
+# -1 は「まだ ANALYZE していない」で、0 行とは違うので NULL にして返す。
+ESTIMATED_ROWS_SQL = """
+SELECT CASE WHEN c.reltuples < 0 THEN NULL ELSE c.reltuples::bigint END
+FROM pg_catalog.pg_class c
+JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
+WHERE n.nspname = %s AND c.relname = %s;
+"""
diff --git a/core/engines/postgres.py b/core/engines/postgres.py
index a5ce9dc..fac284e 100644
--- a/core/engines/postgres.py
+++ b/core/engines/postgres.py
@@ -77,6 +77,8 @@
     LIST_ROLES_SQL,
     LIST_SCHEMAS_SQL,
     LIST_TABLES_SQL,
+    PRIMARY_KEY_COLUMNS_SQL,
+    ESTIMATED_ROWS_SQL,
     NOT_VALID_FK_SQL,
     REPLICATION_STATUS_SQL,
     SETTINGS_SELECT,
@@ -459,18 +461,48 @@ def jsonb_shape(self, schema: str, table: str, column: str, *,
         return JsonbShape(column=column, sampled=len(docs), root_types=root_types,
                           keys=keys, max_depth=max_depth, gin_indexes=gin)
 
-    def preview_rows(self, schema: str, table: str, limit: int = 50) -> Preview:
+    def preview_rows(self, schema: str, table: str, limit: int = 1000,
+                     offset: int = 0) -> Preview:
+        """テーブルの中身を 1 ページぶん。**主キー順**で返す。
+
+        並び順を指定しない `LIMIT/OFFSET` は速いが、PostgreSQL は行の順序を
+        約束しないので、**ページをめくると同じ行が二度出たり、どこにも出ない行が
+        できる**。ページャの体裁で嘘をつくことになるので、主キーがあれば必ずそれで
+        並べる。実測（Airlines・236 万行）: 主キー順の OFFSET は先頭 7 ms、
+        最深部でも 878 ms。順序なしなら 50 ms だが、そちらは正しくない。
+
+        主キーが無いテーブルでは並べようがないので、`ordered_by` を空で返す
+        ── 画面はそれを見て「順序は保証されない」と断る。
+
+        行数は数えない。`count(*)` は毎回の全走査になるので、プランナ統計の推定を
+        使い、推定だと言う（TRUNCATE / DROP の確認と同じ規則）。
+        """
         # Identifiers come from the schema, but compose them safely anyway so a
         # table named `users; DROP …` can never break out of the query.
-        query = sql.SQL("SELECT * FROM {}.{} LIMIT %s").format(
-            sql.Identifier(schema), sql.Identifier(table)
-        )
+        order_cols = self._primary_key_columns(schema, table)
+        query = sql.SQL("SELECT * FROM {}.{}").format(
+            sql.Identifier(schema), sql.Identifier(table))
+        if order_cols:
+            query = query + sql.SQL(" ORDER BY ") + sql.SQL(", ").join(
+                sql.Identifier(c) for c in order_cols)
+        query = query + sql.SQL(" LIMIT %s OFFSET %s")
         with self._connect() as conn:
             with conn.cursor() as cur:
-                cur.execute(query, (limit,))
+                cur.execute(query, (limit, offset))
                 columns = [d.name for d in cur.description]
                 rows = cur.fetchall()
-        return Preview(columns=columns, rows=rows)
+                cur.execute(ESTIMATED_ROWS_SQL, (schema, table))
+                row = cur.fetchone()
+                estimated = row[0] if row else None
+        return Preview(columns=columns, rows=rows, offset=offset, page_size=limit,
+                       estimated_rows=estimated, ordered_by=order_cols)
+
+    def _primary_key_columns(self, schema: str, table: str) -> list[str]:
+        """主キーの列を、定義順で。無ければ空。"""
+        with self._connect() as conn:
+            with conn.cursor() as cur:
+                cur.execute(PRIMARY_KEY_COLUMNS_SQL, (schema, table))
+                return [r[0] for r in cur.fetchall()]
 
     def run_query(self, sql_text: str, *, max_rows: int = 1000,
                   timeout_ms: int = 15000, read_only: bool = True,
diff --git a/core/tests.py b/core/tests.py
index 6c3be02..ff4ab0f 100644
--- a/core/tests.py
+++ b/core/tests.py
@@ -628,6 +628,97 @@ def test_never_analyzed_becomes_none_not_minus_one(self):
         self.assertIn("NULL", LIST_TABLES_SQL)
 
 
+class PreviewPagingTests(SimpleTestCase):
+    """テーブルの中身のページ送り。
+
+    **並び順を決めずに OFFSET を使わない。** PostgreSQL は行の順序を約束しないので、
+    ページをめくると同じ行が二度出たり、どこにも出ない行ができる ── ページャの
+    体裁で嘘をつくことになる。実測（Airlines・236 万行）: 主キー順の OFFSET は
+    先頭 7 ms、最深部 878 ms。順序なしなら 50 ms だが、そちらは正しくない。
+    """
+
+    @staticmethod
+    def _preview(**kw):
+        from core.engines.base import Preview
+
+        kw.setdefault("columns", ["a"])
+        kw.setdefault("rows", [(1,)] * kw.get("page_size", 1000))
+        return Preview(**kw)
+
+    def test_page_number_is_one_based(self):
+        self.assertEqual(self._preview(offset=0, page_size=1000).page, 1)
+        self.assertEqual(self._preview(offset=1000, page_size=1000).page, 2)
+        self.assertEqual(self._preview(offset=2359000, page_size=1000).page, 2360)
+
+    def test_row_range_counts_from_one(self):
+        p = self._preview(offset=1000, page_size=1000)
+        self.assertEqual((p.first_row, p.last_row), (1001, 2000))
+
+    def test_empty_page_has_no_range(self):
+        # 0–0 行目、とは出さない。
+        p = self._preview(offset=0, page_size=1000, rows=[])
+        self.assertEqual((p.first_row, p.last_row), (0, 0))
+
+    def test_next_page_is_decided_by_rows_returned_not_the_estimate(self):
+        # 統計は古いことがある。「次へ」が空振りするのは、行数が少し違うより悪い。
+        full = self._preview(page_size=1000, estimated_rows=5)
+        self.assertTrue(full.has_next)
+        partial = self._preview(page_size=1000, rows=[(1,)] * 3,
+                                estimated_rows=1_000_000)
+        self.assertFalse(partial.has_next)
+
+    def test_unknown_total_means_no_page_count(self):
+        # 統計が無ければページ数も出さない。0 ページとは言わない。
+        self.assertIsNone(self._preview(estimated_rows=None).estimated_pages)
+        self.assertEqual(self._preview(estimated_rows=2360335, page_size=1000)
+                         .estimated_pages, 2361)
+
+    def test_no_primary_key_means_paging_is_not_stable(self):
+        self.assertFalse(self._preview().stable)
+        self.assertTrue(self._preview(ordered_by=["id"]).stable)
+
+    def test_preview_sql_orders_by_the_primary_key(self):
+        # 順序なしの LIMIT/OFFSET に戻すと、ページ送りが静かに壊れる。
+        import inspect
+
+        from core.engines.postgres import PostgresEngine
+
+        src = inspect.getsource(PostgresEngine.preview_rows)
+        self.assertIn("ORDER BY", src)
+        self.assertIn("_primary_key_columns", src)
+
+
+class PagingParameterTests(SimpleTestCase):
+    """`?page=` と `?rows=` の受け取り。**画面から来た数を LIMIT に直接渡さない。**"""
+
+    @staticmethod
+    def _paging(**params):
+        from django.test import RequestFactory
+
+        from core.views.tables import _paging
+
+        return _paging(RequestFactory().get("/", params))
+
+    def test_defaults(self):
+        from core.views.tables import DEFAULT_PAGE_SIZE
+
+        self.assertEqual(self._paging(), (DEFAULT_PAGE_SIZE, 0))
+
+    def test_offset_follows_the_page(self):
+        self.assertEqual(self._paging(page="3", rows="100"), (100, 200))
+
+    def test_junk_falls_back_quietly(self):
+        # ここでエラーを出しても、利用者にできることが無い。
+        from core.views.tables import DEFAULT_PAGE_SIZE
+
+        for params in [{"page": "abc"}, {"page": "-5"}, {"rows": "99999"},
+                       {"rows": "0"}, {"rows": "; DROP TABLE x"}]:
+            with self.subTest(params=params):
+                size, offset = self._paging(**params)
+                self.assertIn(size, (DEFAULT_PAGE_SIZE, 100, 500, 1000, 5000))
+                self.assertGreaterEqual(offset, 0)
+
+
 class ThousandSeparatorTests(SimpleTestCase):
     """**アプリが数えた数は区切る。利用者のデータは区切らない。**
 
@@ -3645,6 +3736,9 @@ def test_add_rename_drop_column(self):
         page.goto(f"{self.live_server_url}/c/{self.conn.pk}/")
         page.locator(f'button[hx-get$="table={self.TBL}"]').click()
         page.locator("#detail h2").wait_for()
+        # 既定タブは Data（テーブル名を押した人が見たいのは中身）。
+        # 列を触るテストは、まず Columns へ移る。
+        page.get_by_role("button", name="Columns", exact=True).click()
 
         # Add a column via the drawer.
         page.get_by_role("button", name="+ Add column").first.click()
@@ -3696,6 +3790,9 @@ def test_change_type_then_set_not_null(self):
         page.goto(f"{self.live_server_url}/c/{self.conn.pk}/")
         page.locator(f'button[hx-get$="table={self.TBL}"]').click()
         page.locator("#detail h2").wait_for()
+        # 既定タブは Data（テーブル名を押した人が見たいのは中身）。
+        # 列を触るテストは、まず Columns へ移る。
+        page.get_by_role("button", name="Columns", exact=True).click()
 
         # Open the edit drawer and change text → integer.
         self._amount_row().get_by_role("button", name="edit").click()
diff --git a/core/views/tables.py b/core/views/tables.py
index 71fde10..a976e04 100644
--- a/core/views/tables.py
+++ b/core/views/tables.py
@@ -11,12 +11,40 @@
 from .connection import overview
 
 
+# 1 ページに出す行数。既定は 1000 ── テーブル名を押した人が見たいのは中身で、
+# 50 行では「入っているものを見た」ことにならない。選べる値は固定の allow-list に
+# する（画面から来た数をそのまま LIMIT に渡さないため）。
+PAGE_SIZES = (100, 500, 1000, 5000)
+DEFAULT_PAGE_SIZE = 1000
+
+
+def _paging(request):
+    """`?page=` と `?rows=` を、範囲の決まった (page_size, offset) に直す。
+
+    壊れた値・負の値・一覧に無い大きさは、黙って既定へ落とす ── ここで
+    エラーを出しても、利用者にできることが無い。
+    """
+    try:
+        size = int(request.GET.get("rows", DEFAULT_PAGE_SIZE))
+    except (TypeError, ValueError):
+        size = DEFAULT_PAGE_SIZE
+    if size not in PAGE_SIZES:
+        size = DEFAULT_PAGE_SIZE
+    try:
+        page = max(1, int(request.GET.get("page", 1)))
+    except (TypeError, ValueError):
+        page = 1
+    return size, (page - 1) * size
+
+
 def table_detail(request, pk):
-    """Columns + a row preview for one table (htmx partial into the main pane)."""
+    """Columns + a page of rows for one table (htmx partial into the main pane)."""
     connection = get_object_or_404(Connection, pk=pk)
     schema = request.GET.get("schema", "")
     table = request.GET.get("table", "")
-    return _render_detail(request, connection, schema, table)
+    size, offset = _paging(request)
+    return _render_detail(request, connection, schema, table,
+                          page_size=size, offset=offset)
 
 
 def jsonb_shape(request, pk):
@@ -63,7 +91,8 @@ def _write_previews(engine, schema, table):
     return out
 
 
-def _render_detail(request, connection, schema, table, error=None, notice=None):
+def _render_detail(request, connection, schema, table, error=None, notice=None,
+                   page_size=DEFAULT_PAGE_SIZE, offset=0):
     """Render the table-detail panel: columns, indexes and a row preview.
 
     A connection-level failure falls back to the error partial; a per-action
@@ -73,7 +102,7 @@ def _render_detail(request, connection, schema, table, error=None, notice=None):
         engine = get_engine(connection)
         columns = engine.list_columns(schema, table)
         indexes = engine.list_indexes(schema, table)
-        preview = engine.preview_rows(schema, table)
+        preview = engine.preview_rows(schema, table, limit=page_size, offset=offset)
         comment = engine.table_comment(schema, table)
     except EngineError as exc:
         return render(request, "partials/error.html", {"message": str(exc)})
@@ -104,6 +133,8 @@ def _render_detail(request, connection, schema, table, error=None, notice=None):
             "column_types": COLUMN_TYPES,
             "preview_columns": preview.columns,
             "preview_rows": rows,
+            "preview": preview,
+            "page_sizes": PAGE_SIZES,
             # Display-only: prefilled into the SQL editor as a starting point,
             # never executed server-side. The run path (run_query) is read-only
             # enforced by the DB. nosec B608 — not a query we build and execute.
diff --git a/locale/ja/LC_MESSAGES/django.mo b/locale/ja/LC_MESSAGES/django.mo
index 199fc73123b81c6ccecb37bc2b34234c988280ed..7f40620a0697fa33950f0b22fdffb5204998678f 100644
GIT binary patch
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diff --git a/locale/ja/LC_MESSAGES/django.po b/locale/ja/LC_MESSAGES/django.po
index f749b17..194b7c6 100644
--- a/locale/ja/LC_MESSAGES/django.po
+++ b/locale/ja/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-09-04 13:25+0000\n"
+"POT-Creation-Date: 2026-09-04 13:40+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -22,30 +22,30 @@ msgstr ""
 msgid "Unsupported database kind: %(kind)s"
 msgstr "未対応のデータベース種別: %(kind)s"
 
-#: core/engines/mysql.py:439 core/engines/mysql.py:846
-#: core/engines/mysql.py:852 core/engines/postgres.py:434
-#: core/engines/postgres.py:535 core/engines/postgres.py:1205
+#: core/engines/mysql.py:460 core/engines/mysql.py:867
+#: core/engines/mysql.py:873 core/engines/postgres.py:436
+#: core/engines/postgres.py:567 core/engines/postgres.py:1237
 #: planner_lab/rehearsal.py:86
 #, python-format
 msgid "No such column: %(name)s"
 msgstr "存在しない列: %(name)s"
 
-#: core/engines/mysql.py:441 core/engines/postgres.py:537
+#: core/engines/mysql.py:462 core/engines/postgres.py:569
 #, python-format
 msgid "Unknown filter operator: %(op)s"
 msgstr "不明なフィルタ演算子: %(op)s"
 
-#: core/engines/mysql.py:486 core/engines/mysql.py:491
-#: core/engines/postgres.py:587
+#: core/engines/mysql.py:507 core/engines/mysql.py:512
+#: core/engines/postgres.py:619
 msgid "The CSV file is empty."
 msgstr "CSV ファイルが空です。"
 
-#: core/engines/mysql.py:496 core/engines/postgres.py:594
+#: core/engines/mysql.py:517 core/engines/postgres.py:626
 #, python-format
 msgid "CSV header has columns not in %(table)s: %(cols)s"
 msgstr "%(table)s に無い列が CSV ヘッダにあります: %(cols)s"
 
-#: core/engines/mysql.py:655
+#: core/engines/mysql.py:676
 msgid ""
 "Can't check for lock waits: the MySQL performance_schema is disabled on this "
 "server, so blocking can't be detected. Enable it (performance_schema=ON) to "
@@ -55,7 +55,7 @@ msgstr ""
 "効なため、ブロッキングを検出できません。このパネルを使うには有効化してくださ"
 "い (performance_schema=ON)。"
 
-#: core/engines/mysql.py:665
+#: core/engines/mysql.py:686
 msgid ""
 "Can't check for lock waits: this needs MySQL 8.0+ "
 "(performance_schema.data_lock_waits is unavailable here)."
@@ -63,7 +63,7 @@ msgstr ""
 "ロック待ちを確認できません: これには MySQL 8.0 以降が必要です "
 "(performance_schema.data_lock_waits がここでは利用できません)。"
 
-#: core/engines/mysql.py:700
+#: core/engines/mysql.py:721
 msgid ""
 "MySQL can't create a database from a template (no TEMPLATE/CREATE DATABASE … "
 "LIKE). Create it empty, then load a dump."
@@ -71,7 +71,7 @@ msgstr ""
 "MySQL はテンプレートからデータベースを作成できません (TEMPLATE/CREATE "
 "DATABASE … LIKE は非対応)。空で作成してからダンプを読み込んでください。"
 
-#: core/engines/mysql.py:713
+#: core/engines/mysql.py:734
 msgid ""
 "Can't drop the database this connection is using — connect to another "
 "database first."
@@ -79,7 +79,7 @@ msgstr ""
 "この接続が使用中のデータベースは削除できません — 先に別のデータベースに接続し"
 "てください。"
 
-#: core/engines/mysql.py:719
+#: core/engines/mysql.py:740
 msgid ""
 "MySQL doesn't support renaming a database. Create the new one and move the "
 "tables (RENAME TABLE), or dump and reload."
@@ -87,44 +87,44 @@ msgstr ""
 "MySQL はデータベースのリネームに対応していません。新しいデータベースを作成し"
 "てテーブルを移動する (RENAME TABLE) か、ダンプして再読み込みしてください。"
 
-#: core/engines/mysql.py:734 core/engines/postgres.py:174
+#: core/engines/mysql.py:755 core/engines/postgres.py:176
 #, python-format
 msgid "Unsupported index method: %(method)s"
 msgstr "未対応のインデックス方式: %(method)s"
 
-#: core/engines/mysql.py:736 core/engines/postgres.py:176
-#: core/views/tables.py:192
+#: core/engines/mysql.py:757 core/engines/postgres.py:178
+#: core/views/tables.py:223
 msgid "Select at least one column to index."
 msgstr "インデックス対象の列を1つ以上選んでください。"
 
-#: core/engines/mysql.py:743 core/engines/postgres.py:1103
+#: core/engines/mysql.py:764 core/engines/postgres.py:1135
 #: planner_lab/whatif.py:115
 #, python-format
 msgid "No such column(s): %(cols)s"
 msgstr "存在しない列: %(cols)s"
 
-#: core/engines/mysql.py:756
+#: core/engines/mysql.py:777
 msgid "Dropping an index needs the table it's on."
 msgstr "インデックスの削除には、対象のテーブルが必要です。"
 
-#: core/engines/mysql.py:779 core/engines/mysql.py:808
+#: core/engines/mysql.py:800 core/engines/mysql.py:829
 #, python-format
 msgid "Unsupported column type: %(t)s. Pick one of the listed types."
 msgstr "未対応の列型です: %(t)s。一覧の型から選んでください。"
 
-#: core/engines/mysql.py:894
+#: core/engines/mysql.py:915
 msgid "Orphan-row checks are a PostgreSQL feature here."
 msgstr "孤児行チェックはここでは PostgreSQL の機能です。"
 
-#: core/engines/mysql.py:952
+#: core/engines/mysql.py:973
 msgid "mysqldump timed out."
 msgstr "mysqldump がタイムアウトしました。"
 
-#: core/engines/mysql.py:1002 core/engines/postgres.py:1322
+#: core/engines/mysql.py:1023 core/engines/postgres.py:1354
 msgid "restore timed out."
 msgstr "リストアがタイムアウトしました。"
 
-#: core/engines/mysql.py:1091
+#: core/engines/mysql.py:1112
 msgid ""
 "MySQL has no replication slots — it streams the binary log directly, so "
 "there's nothing to create."
@@ -132,18 +132,18 @@ msgstr ""
 "MySQL にレプリケーションスロットはありません — バイナリログを直接ストリーミン"
 "グするため、作成するものはありません。"
 
-#: core/engines/mysql.py:1095
+#: core/engines/mysql.py:1116
 msgid "MySQL has no replication slots — nothing to drop."
 msgstr ""
 "MySQL にレプリケーションスロットはありません — 削除するものはありません。"
 
-#: core/engines/mysql.py:1185 core/engines/mysql.py:1190
-#: core/engines/mysql.py:1200 core/engines/postgres.py:1720
+#: core/engines/mysql.py:1206 core/engines/mysql.py:1211
+#: core/engines/mysql.py:1221 core/engines/postgres.py:1752
 #, python-format
 msgid "Unknown setting: %(name)s"
 msgstr "不明な設定: %(name)s"
 
-#: core/engines/mysql.py:1392
+#: core/engines/mysql.py:1413
 #, python-format
 msgid ""
 "Gave up after waiting %(secs)ss for a lock on this object — another "
@@ -154,25 +154,25 @@ msgstr ""
 "クションが保持しています。変更は行われていません。保持者は「ロック」パネルで"
 "確認し、解放されてから再実行してください。"
 
-#: core/engines/postgres.py:437
+#: core/engines/postgres.py:439
 #, python-format
 msgid "%(name)s is not a JSON column."
 msgstr "%(name)s は JSON 列ではありません。"
 
-#: core/engines/postgres.py:1229
+#: core/engines/postgres.py:1261
 #, python-format
 msgid "Unknown dump format: %(fmt)s"
 msgstr "不明なダンプ形式: %(fmt)s"
 
-#: core/engines/postgres.py:1247
+#: core/engines/postgres.py:1279
 msgid "pg_dump timed out."
 msgstr "pg_dump がタイムアウトしました。"
 
-#: core/engines/postgres.py:1442
+#: core/engines/postgres.py:1474
 msgid "That table no longer exists."
 msgstr "そのテーブルはもうありません。"
 
-#: core/engines/postgres.py:1488
+#: core/engines/postgres.py:1520
 msgid ""
 "This index no longer looks like a composite UNIQUE with a nullable column — "
 "it may have changed since the panel loaded."
@@ -181,11 +181,11 @@ msgstr ""
 "てから作り替えられた可能性があります。この参照はもう単一の親に解決できません "
 "— パネルを開いてから変わった可能性があります。"
 
-#: core/engines/postgres.py:1597
+#: core/engines/postgres.py:1629
 msgid "No relationship to check was given."
 msgstr "チェックする関係が指定されていません。"
 
-#: core/engines/postgres.py:1610
+#: core/engines/postgres.py:1642
 msgid ""
 "This reference no longer resolves to a single parent — it may have changed "
 "since the panel loaded."
@@ -193,7 +193,7 @@ msgstr ""
 "この参照はもう単一の親に解決できません — パネルを開いてから変わった可能性があ"
 "ります。"
 
-#: core/engines/postgres.py:1805
+#: core/engines/postgres.py:1837
 #, python-format
 msgid ""
 "Gave up after waiting %(timeout)s for a lock on this object — another "
@@ -204,7 +204,7 @@ msgstr ""
 "クションが保持しています。変更は行われていません。保持者は「ロック」パネルで"
 "確認し、解放されてから再実行してください。"
 
-#: core/engines/postgres.py:1814
+#: core/engines/postgres.py:1846
 #, python-format
 msgid ""
 "Gave up after waiting %(timeout)s to measure table sizes — another "
@@ -316,24 +316,24 @@ msgstr "エクスポートする結果がありません — 先にクエリを
 msgid "No table specified."
 msgstr "テーブルが指定されていません。"
 
-#: core/views/tables.py:152
+#: core/views/tables.py:183
 msgid "Choose a CSV file to import."
 msgstr "インポートする CSV ファイルを選んでください。"
 
-#: core/views/tables.py:160
+#: core/views/tables.py:191
 #, python-format
 msgid "Imported %(n)s row(s) from %(name)s."
 msgstr "%(name)s から %(n)s 行をインポートしました。"
 
-#: core/views/tables.py:226
+#: core/views/tables.py:257
 msgid "Enter a new table name."
 msgstr "新しいテーブル名を入力してください。"
 
-#: core/views/tables.py:277
+#: core/views/tables.py:308
 msgid "Enter a column name."
 msgstr "列名を入力してください。"
 
-#: core/views/tables.py:297
+#: core/views/tables.py:328
 msgid "Enter a new column name."
 msgstr "新しい列名を入力してください。"
 
@@ -420,7 +420,7 @@ msgid "— click columns in order"
 msgstr "— 列を順にクリック"
 
 #: planner_lab/templates/partials/index_lab.html:64
-#: templates/partials/detail.html:151 templates/partials/detail.html:444
+#: templates/partials/detail.html:151 templates/partials/detail.html:490
 msgid "unique"
 msgstr "ユニーク"
 
@@ -570,14 +570,14 @@ msgid "Defaults point at the bundled sample DB."
 msgstr "初期値は同梱のサンプルDBを指しています。"
 
 #: templates/index.html:16 templates/partials/detail.html:70
-#: templates/partials/detail.html:326 templates/partials/detail.html:359
+#: templates/partials/detail.html:372 templates/partials/detail.html:405
 #: templates/partials/replication.html:172
 msgid "Type"
 msgstr "種別"
 
 #: templates/index.html:17 templates/partials/detail.html:69
-#: templates/partials/detail.html:138 templates/partials/detail.html:322
-#: templates/partials/detail.html:435 templates/partials/extensions.html:28
+#: templates/partials/detail.html:138 templates/partials/detail.html:368
+#: templates/partials/detail.html:481 templates/partials/extensions.html:28
 #: templates/partials/extensions.html:64 templates/partials/objects.html:34
 #: templates/partials/objects.html:95 templates/partials/objects.html:184
 #: templates/partials/objects.html:252 templates/partials/objects.html:263
@@ -586,8 +586,8 @@ msgstr "種別"
 msgid "Name"
 msgstr "名前"
 
-#: templates/index.html:17 templates/partials/detail.html:332
-#: templates/partials/detail.html:435 templates/partials/objects.html:188
+#: templates/index.html:17 templates/partials/detail.html:378
+#: templates/partials/detail.html:481 templates/partials/objects.html:188
 #: templates/partials/objects.html:283 templates/partials/objects.html:310
 msgid "(optional)"
 msgstr "（任意）"
@@ -1094,7 +1094,7 @@ msgstr "データ"
 msgid "Danger"
 msgstr "危険"
 
-#: templates/partials/detail.html:63 templates/partials/detail.html:336
+#: templates/partials/detail.html:63 templates/partials/detail.html:382
 msgid "+ Add column"
 msgstr "+ 列を追加"
 
@@ -1102,8 +1102,8 @@ msgstr "+ 列を追加"
 msgid "Nullable"
 msgstr "NULL 許容"
 
-#: templates/partials/detail.html:72 templates/partials/detail.html:332
-#: templates/partials/detail.html:403
+#: templates/partials/detail.html:72 templates/partials/detail.html:378
+#: templates/partials/detail.html:449
 msgid "Default"
 msgstr "デフォルト"
 
@@ -1155,11 +1155,11 @@ msgstr "本番作成の前にインデックスを試して計測します"
 msgid "Try an index"
 msgstr "インデックスを試す"
 
-#: templates/partials/detail.html:131 templates/partials/detail.html:445
+#: templates/partials/detail.html:131 templates/partials/detail.html:491
 msgid "+ Create index"
 msgstr "+ インデックスを作成"
 
-#: templates/partials/detail.html:140 templates/partials/detail.html:439
+#: templates/partials/detail.html:140 templates/partials/detail.html:485
 msgid "Method"
 msgstr "方式"
 
@@ -1228,19 +1228,74 @@ msgstr "フィルタを適用"
 msgid "All conditions are ANDed · read-only"
 msgstr "全条件は AND 結合・読み取り専用"
 
-#: templates/partials/detail.html:241
+#: templates/partials/detail.html:223
+#, fuzzy, python-format
+#| msgid "rows %(n)s"
+msgid "rows %(a)s–%(b)s"
+msgstr "行 %(n)s"
+
+#: templates/partials/detail.html:225
+#, fuzzy, python-format
+#| msgid "Rows: about %(n)s (estimated from statistics, last analyzed %(d)s)"
+msgid "of about %(n)s (estimated from statistics)"
+msgstr "行数: 約 %(n)s（統計からの推定・最終 ANALYZE %(d)s）"
+
+#: templates/partials/detail.html:227
+#, fuzzy
+#| msgid "Rows: unknown (this table has never been analyzed)"
+msgid "of an unknown total — this table has never been analyzed"
+msgstr "行数: 不明（このテーブルはまだ ANALYZE されていません）"
+
+#: templates/partials/detail.html:232
+msgid ""
+"A table with no primary key has no defined row order, so paging can repeat "
+"or skip rows."
+msgstr ""
+"主キーの無いテーブルには決まった行の順序がないので、ページをめくると同じ行が"
+"二度出たり、どこにも出ない行ができることがあります。"
+
+#: templates/partials/detail.html:233
+msgid "⚠ No primary key — row order is not guaranteed between pages"
+msgstr "⚠ 主キーが無いため、ページ間で行の順序は保証されません"
+
+#: templates/partials/detail.html:240
+msgid "← Prev"
+msgstr "← 前"
+
+#: templates/partials/detail.html:244
+#, python-format
+msgid "page %(p)s of about %(t)s"
+msgstr "%(p)s / 約 %(t)s ページ"
+
+#: templates/partials/detail.html:246
+#, python-format
+msgid "page %(p)s"
+msgstr "%(p)s ページ"
+
+#: templates/partials/detail.html:251
+msgid "Next →"
+msgstr "次 →"
+
+#: templates/partials/detail.html:257
+#, fuzzy, python-format
+#| msgid "%(n)s row"
+#| msgid_plural "%(n)s rows"
+msgid "%(n)s rows"
+msgstr "%(n)s 行"
+
+#: templates/partials/detail.html:287
 msgid "This table is empty."
 msgstr "このテーブルは空です。"
 
-#: templates/partials/detail.html:252
+#: templates/partials/detail.html:298
 msgid "Truncate table"
 msgstr "テーブルを truncate"
 
-#: templates/partials/detail.html:253
+#: templates/partials/detail.html:299
 msgid "Delete every row. A safety snapshot is taken first."
 msgstr "全行を削除します。先に安全スナップショットを取得します。"
 
-#: templates/partials/detail.html:256
+#: templates/partials/detail.html:302
 #, python-format
 msgid ""
 "Truncate &quot;%(schema)s.%(table)s&quot;? This permanently deletes every "
@@ -1249,81 +1304,81 @@ msgstr ""
 "&quot;%(schema)s.%(table)s&quot; を truncate しますか？全行が完全に削除されま"
 "す。"
 
-#: templates/partials/detail.html:256 templates/partials/detail.html:268
+#: templates/partials/detail.html:302 templates/partials/detail.html:314
 #: templates/partials/objects.html:67 templates/partials/objects.html:110
 #: templates/partials/objects.html:154
 msgid "This runs:"
 msgstr "実行される SQL:"
 
-#: templates/partials/detail.html:256 templates/partials/detail.html:268
+#: templates/partials/detail.html:302 templates/partials/detail.html:314
 msgid "Rows: unknown (this table has never been analyzed)"
 msgstr "行数: 不明（このテーブルはまだ ANALYZE されていません）"
 
-#: templates/partials/detail.html:256 templates/partials/detail.html:268
+#: templates/partials/detail.html:302 templates/partials/detail.html:314
 #, python-format
 msgid "Rows: about %(n)s (estimated from statistics, last analyzed %(d)s)"
 msgstr "行数: 約 %(n)s（統計からの推定・最終 ANALYZE %(d)s）"
 
-#: templates/partials/detail.html:256 templates/partials/detail.html:268
+#: templates/partials/detail.html:302 templates/partials/detail.html:314
 msgid "Referenced by:"
 msgstr "参照しているテーブル:"
 
-#: templates/partials/detail.html:256 templates/partials/detail.html:268
+#: templates/partials/detail.html:302 templates/partials/detail.html:314
 msgid "A DROP … CASCADE would also drop:"
 msgstr "DROP … CASCADE で一緒に消えるもの:"
 
-#: templates/partials/detail.html:259
+#: templates/partials/detail.html:305
 msgid "Truncate"
 msgstr "Truncate"
 
-#: templates/partials/detail.html:264 templates/partials/detail.html:271
+#: templates/partials/detail.html:310 templates/partials/detail.html:317
 msgid "Drop table"
 msgstr "テーブルを削除"
 
-#: templates/partials/detail.html:265
+#: templates/partials/detail.html:311
 msgid "Remove the table and all its data. A safety snapshot is taken first."
 msgstr "テーブルと全データを削除します。先に安全スナップショットを取得します。"
 
-#: templates/partials/detail.html:268
+#: templates/partials/detail.html:314
 #, python-format
 msgid "Drop table &quot;%(schema)s.%(table)s&quot;? This cannot be undone."
 msgstr ""
 "テーブル &quot;%(schema)s.%(table)s&quot; を削除しますか？元に戻せません。"
 
-#: templates/partials/detail.html:282
+#: templates/partials/detail.html:328
 msgid "Rename table"
 msgstr "テーブルをリネーム"
 
-#: templates/partials/detail.html:282
+#: templates/partials/detail.html:328
 msgid "Add column"
 msgstr "列を追加"
 
-#: templates/partials/detail.html:283
+#: templates/partials/detail.html:329
 msgid "Edit column"
 msgstr "列を編集"
 
-#: templates/partials/detail.html:283
+#: templates/partials/detail.html:329
 msgid "Create index"
 msgstr "インデックスを作成"
 
-#: templates/partials/detail.html:284 templates/partials/detail.html:312
+#: templates/partials/detail.html:330 templates/partials/detail.html:358
 msgid "Import CSV"
 msgstr "CSV インポート"
 
-#: templates/partials/detail.html:295 templates/partials/objects.html:201
+#: templates/partials/detail.html:341 templates/partials/objects.html:201
 msgid "New name"
 msgstr "新しい名前"
 
-#: templates/partials/detail.html:297 templates/partials/detail.html:350
+#: templates/partials/detail.html:343 templates/partials/detail.html:396
 #: templates/partials/objects.html:203
 msgid "Rename"
 msgstr "リネーム"
 
-#: templates/partials/detail.html:306
+#: templates/partials/detail.html:352
 msgid "CSV file"
 msgstr "CSV ファイル"
 
-#: templates/partials/detail.html:310
+#: templates/partials/detail.html:356
 msgid ""
 "The first row must be a header; columns are matched to the table by name. "
 "Rows are appended in one transaction — if any row's types don't fit, the "
@@ -1333,43 +1388,43 @@ msgstr ""
 "は1つのトランザクションで追加され、いずれかの行の型が合わない場合はインポート"
 "全体がロールバックされます。事前に安全のためのスナップショットを取得します。"
 
-#: templates/partials/detail.html:323
+#: templates/partials/detail.html:369
 msgid "column name"
 msgstr "列名"
 
-#: templates/partials/detail.html:335
+#: templates/partials/detail.html:381
 msgid "not null"
 msgstr "not null"
 
-#: templates/partials/detail.html:347
+#: templates/partials/detail.html:393
 msgid "Rename to"
 msgstr "リネーム先"
 
-#: templates/partials/detail.html:362
+#: templates/partials/detail.html:408
 msgid "(current)"
 msgstr "（現在）"
 
-#: templates/partials/detail.html:365
+#: templates/partials/detail.html:411
 msgid "Change"
 msgstr "変更"
 
-#: templates/partials/detail.html:370
+#: templates/partials/detail.html:416
 msgid "Nullability"
 msgstr "NULL許可"
 
-#: templates/partials/detail.html:378
+#: templates/partials/detail.html:424
 msgid "set NOT NULL"
 msgstr "NOT NULL を設定"
 
-#: templates/partials/detail.html:378
+#: templates/partials/detail.html:424
 msgid "drop NOT NULL"
 msgstr "NOT NULL を解除"
 
-#: templates/partials/detail.html:389
+#: templates/partials/detail.html:435
 msgid "Rehearse it"
 msgstr "リハーサル"
 
-#: templates/partials/detail.html:394
+#: templates/partials/detail.html:440
 msgid ""
 "Runs the real statement and rolls it back. It takes a real ACCESS EXCLUSIVE "
 "lock while it runs, so readers queue behind it — briefly, but for real."
@@ -1377,23 +1432,23 @@ msgstr ""
 "本物の文を実行して、ロールバックする。実行中は本物の ACCESS EXCLUSIVE ロック"
 "を取るので、読み取りはその後ろに並ぶ。短いが、本物。"
 
-#: templates/partials/detail.html:403
+#: templates/partials/detail.html:449
 msgid "(empty drops it)"
 msgstr "（空で解除）"
 
-#: templates/partials/detail.html:406 templates/partials/settings_row.html:42
+#: templates/partials/detail.html:452 templates/partials/settings_row.html:42
 msgid "Set"
 msgstr "設定"
 
-#: templates/partials/detail.html:422
+#: templates/partials/detail.html:468
 msgid "Click columns in the order you want them indexed."
 msgstr "インデックスしたい順に列をクリックしてください。"
 
-#: templates/partials/detail.html:436
+#: templates/partials/detail.html:482
 msgid "index name"
 msgstr "インデックス名"
 
-#: templates/partials/detail.html:446
+#: templates/partials/detail.html:492
 msgid "built CONCURRENTLY"
 msgstr "CONCURRENTLY で作成"
 
@@ -1575,11 +1630,11 @@ msgid ""
 "DISTINCT</span> closes it; those indexes are not listed. Counting reads the "
 "table, read-only."
 msgstr ""
-"NULL は別の NULL と等しくないので、キーに NULL を含む行は索引から見ると全部"
-"別物になります。制約は効いていて、NULL 許容の列の形に穴が開いているだけです。"
+"NULL は別の NULL と等しくないので、キーに NULL を含む行は索引から見ると全部別"
+"物になります。制約は効いていて、NULL 許容の列の形に穴が開いているだけです。"
 "PostgreSQL 15 の <span class=\"mono\">NULLS NOT DISTINCT</span> で塞げます"
-"（そう作られた索引はここに出ません）。数えるときはテーブルを読みますが、"
-"読み取りのみです。"
+"（そう作られた索引はここに出ません）。数えるときはテーブルを読みますが、読み"
+"取りのみです。"
 
 #: templates/partials/health.html:143
 msgid "No composite UNIQUE has a nullable column — no hole to fit through. 🎉"
@@ -2938,7 +2993,8 @@ msgstr "テーブルを絞り込み…"
 
 #: templates/partials/table_list.html:17
 msgid "Statistics have never been collected for this table — run ANALYZE"
-msgstr "このテーブルの統計がまだ集められていません（ANALYZE を実行してください）"
+msgstr ""
+"このテーブルの統計がまだ集められていません（ANALYZE を実行してください）"
 
 #: templates/partials/table_list.html:17
 msgid "unknown"
diff --git a/planner_lab/tests.py b/planner_lab/tests.py
index 8a075f9..75e8259 100644
--- a/planner_lab/tests.py
+++ b/planner_lab/tests.py
@@ -256,6 +256,9 @@ def test_rehearse_reports_a_verdict_and_changes_nothing(self):
         page.goto(f"{self.live_server_url}/c/{self.conn.pk}/")
         page.locator(f'button[hx-get$="table={self.TBL}"]').click()
         page.locator("#detail h2").wait_for()
+        # 既定タブは Data（テーブル名を押した人が見たいのは中身）。
+        # 列を触るテストは、まず Columns へ移る。
+        page.get_by_role("button", name="Columns", exact=True).click()
 
         page.locator("#detail tbody tr", has_text="x").get_by_role(
             "button", name="edit").click()
diff --git a/templates/partials/detail.html b/templates/partials/detail.html
index 1ebb7f7..7ca9573 100644
--- a/templates/partials/detail.html
+++ b/templates/partials/detail.html
@@ -3,7 +3,20 @@
 or, for one-click destructive ops, behind an hx-confirm. `drawer` holds the open
 form's kind; `ctx` carries the row the drawer is acting on. Submits target
 #detail, so the whole panel (drawer included) re-renders and resets.{% endcomment %}
-<div class="space-y-5" x-data="{ tab: 'columns', drawer: null, ctx: {} }">
+<div class="space-y-5" {# 既定タブは Data ── テーブル名を押した人が見たいのは中身で、列の構成は
+   自分で書いたので知っている。
+
+   ただし**同じテーブルの中で操作したときは、いま見ていたタブに留まる**。
+   この panel は htmx で丸ごと差し替わるので、素朴に書くと列を 1 つ直すたびに
+   Data へ弾き飛ばされる。直前に見ていたタブをテーブル名つきで覚えておき、
+   同じテーブルなら戻す（別のテーブルへ移ったら Data から始める）。 #}
+        x-data="{
+          tab: (window.__cli2uiTab && window.__cli2uiTab.of === '{{ schema|escapejs }}.{{ table|escapejs }}')
+                 ? window.__cli2uiTab.tab : 'data',
+          drawer: null, ctx: {},
+          init() { this.$watch('tab', v => window.__cli2uiTab = { of: '{{ schema|escapejs }}.{{ table|escapejs }}', tab: v });
+                   window.__cli2uiTab = { of: '{{ schema|escapejs }}.{{ table|escapejs }}', tab: this.tab }; }
+        }">
   <div class="flex items-start justify-between gap-3">
     <div>
       <h2 class="text-lg font-semibold mono">{{ schema }}.{{ table }}</h2>
@@ -214,6 +227,52 @@ <h2 class="text-lg font-semibold mono">{{ schema }}.{{ table }}</h2>
       </div>
     </form>
 
+    {% if preview %}
+    <!-- ページ送り。行数は数えない（count(*) は毎回の全走査）ので、統計の推定を
+         「約」と断って出す。順序が決まっていないテーブルではそれも言う。 -->
+    <div class="flex flex-wrap items-center gap-3 text-xs text-zinc-400">
+      <span>
+        {% blocktrans with a=preview.first_row|intcomma b=preview.last_row|intcomma %}rows {{ a }}–{{ b }}{% endblocktrans %}
+        {% if preview.estimated_rows is not None %}
+          <span class="text-zinc-500">/ {% blocktrans with n=preview.estimated_rows|intcomma %}of about {{ n }} (estimated from statistics){% endblocktrans %}</span>
+        {% else %}
+          <span class="text-zinc-500">/ {% trans "of an unknown total — this table has never been analyzed" %}</span>
+        {% endif %}
+      </span>
+
+      {% if not preview.stable %}
+        <span class="text-amber-400" title="{% trans 'A table with no primary key has no defined row order, so paging can repeat or skip rows.' %}">
+          {% trans "⚠ No primary key — row order is not guaranteed between pages" %}
+        </span>
+      {% endif %}
+
+      <span class="ml-auto flex items-center gap-1">
+        {% if preview.has_previous %}
+          <button class="btn btn-sm btn-neutral" hx-get="{% url 'table_detail' connection.pk %}?schema={{ schema|urlencode }}&table={{ table|urlencode }}&rows={{ preview.page_size }}&page={{ preview.page|add:-1 }}"
+                  hx-target="#detail" hx-swap="innerHTML">{% trans "← Prev" %}</button>
+        {% endif %}
+        <span class="px-2 tabular-nums">
+          {% if preview.estimated_pages %}
+            {% blocktrans with p=preview.page|intcomma t=preview.estimated_pages|intcomma %}page {{ p }} of about {{ t }}{% endblocktrans %}
+          {% else %}
+            {% blocktrans with p=preview.page|intcomma %}page {{ p }}{% endblocktrans %}
+          {% endif %}
+        </span>
+        {% if preview.has_next %}
+          <button class="btn btn-sm btn-neutral" hx-get="{% url 'table_detail' connection.pk %}?schema={{ schema|urlencode }}&table={{ table|urlencode }}&rows={{ preview.page_size }}&page={{ preview.page|add:1 }}"
+                  hx-target="#detail" hx-swap="innerHTML">{% trans "Next →" %}</button>
+        {% endif %}
+        <select class="field field-sm ml-2"
+                hx-get="{% url 'table_detail' connection.pk %}?schema={{ schema|urlencode }}&table={{ table|urlencode }}"
+                hx-target="#detail" hx-swap="innerHTML" hx-include="this" name="rows">
+          {% for n in page_sizes %}
+            <option value="{{ n }}"{% if n == preview.page_size %} selected{% endif %}>{% blocktrans with n=n|intcomma %}{{ n }} rows{% endblocktrans %}</option>
+          {% endfor %}
+        </select>
+      </span>
+    </div>
+    {% endif %}
+
     <!-- Initial content = unfiltered preview; Apply swaps in the filtered grid. -->
     <div id="filter-result">
       <div class="bg-zinc-900/60 border border-zinc-800 rounded-xl overflow-hidden">

From e12e510d099487c0c2c98325ca9baf398834e061 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=94=B0=E7=95=91=E3=81=B2=E3=81=A8=E3=81=97?=
 <hitoshi1964@gmail.com>
Date: Fri, 4 Sep 2026 22:57:35 +0900
Subject: [PATCH 2/4] =?UTF-8?q?=E3=83=87=E3=83=BC=E3=82=BF=E3=82=92?=
 =?UTF-8?q?=E4=B8=8A=E3=81=92=E3=82=8B=E3=80=82=E3=83=8A=E3=83=93=E3=81=AE?=
 =?UTF-8?q?=E7=A9=BA=E3=81=8D=E3=81=AB=E7=8F=BE=E5=9C=A8=E5=9C=B0=E3=82=92?=
 =?UTF-8?q?=E5=87=BA=E3=81=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

**縦に 2 行詰めた。**

- 見出しの下の「4 列 · 最大 1000 行をプレビュー」を消した。行数はページャが
  「rows 1–1,000 of about 1,894,295」と正確に言うようになったので重複していて、
  **同じことを 2 か所で言うと、いつか片方が古くなる**
- 件数はタブのラベルへ移した（Columns 4 / Indexes 3）。切り替えなくても分かるので、
  要約行そのものが要らなくなる
- 間隔を space-y-5 → 3

**ナビの右側が空いていた。** ここに、いま開いているテーブル名を出す。#detail は
htmx で丸ごと入れ替わり、ブラウザの履歴にも残らないので、そうしないと現在地が
タイトルにしか無い。サイドバーの選択（Alpine の sel）を見ているだけなので、
サーバ往復も OOB swap も要らない。

**「— ホバーでセクションメニュー」は外した。** UI が自分の使い方を説明していた。

E2E のタブ選択は完全一致をやめて .subtab のクラスで取る（ラベルに件数が
入ったため）。315 件通過、未訳 0。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XkRWmyQf9Rt3sYjjkPSq4Y
---
 core/tests.py                   |   8 +-
 locale/ja/LC_MESSAGES/django.mo | Bin 67999 -> 67656 bytes
 locale/ja/LC_MESSAGES/django.po | 232 +++++++++++++++-----------------
 planner_lab/tests.py            |   2 +-
 templates/partials/detail.html  |  12 +-
 templates/workspace.html        |  11 +-
 6 files changed, 126 insertions(+), 139 deletions(-)

diff --git a/core/tests.py b/core/tests.py
index ff4ab0f..e5c05c8 100644
--- a/core/tests.py
+++ b/core/tests.py
@@ -3541,7 +3541,7 @@ def test_create_then_drop_index(self):
         page.locator("#detail h2").wait_for()
 
         # Indexes subtab → open the Create index drawer.
-        page.get_by_role("button", name="Indexes", exact=True).click()
+        page.locator(".subtab", has_text="Indexes").click()
         page.get_by_role("button", name="+ Create index").first.click()
         create = page.locator('form[hx-post*="indexes/create"]')
         create.wait_for(state="visible")
@@ -3556,7 +3556,7 @@ def test_create_then_drop_index(self):
 
         # The swap resets the panel to Columns; reopen Indexes to see the row,
         # with its columns in the chosen order.
-        page.get_by_role("button", name="Indexes", exact=True).click()
+        page.locator(".subtab", has_text="Indexes").click()
         row = page.locator("#detail tr", has_text=self.IDX)
         expect(row).to_contain_text("total, customer_id")
 
@@ -3738,7 +3738,7 @@ def test_add_rename_drop_column(self):
         page.locator("#detail h2").wait_for()
         # 既定タブは Data（テーブル名を押した人が見たいのは中身）。
         # 列を触るテストは、まず Columns へ移る。
-        page.get_by_role("button", name="Columns", exact=True).click()
+        page.locator(".subtab", has_text="Columns").click()
 
         # Add a column via the drawer.
         page.get_by_role("button", name="+ Add column").first.click()
@@ -3792,7 +3792,7 @@ def test_change_type_then_set_not_null(self):
         page.locator("#detail h2").wait_for()
         # 既定タブは Data（テーブル名を押した人が見たいのは中身）。
         # 列を触るテストは、まず Columns へ移る。
-        page.get_by_role("button", name="Columns", exact=True).click()
+        page.locator(".subtab", has_text="Columns").click()
 
         # Open the edit drawer and change text → integer.
         self._amount_row().get_by_role("button", name="edit").click()
diff --git a/locale/ja/LC_MESSAGES/django.mo b/locale/ja/LC_MESSAGES/django.mo
index 7f40620a0697fa33950f0b22fdffb5204998678f..19968733e967e7624cb921d902fada3ecedafbd1 100644
GIT binary patch
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zKYT!pQ>f^B+0cZ06|y(17!}(uDz0BlpM1jy<r_9IA5DgEz>tA)&Y&Ux=f0r{9%Boo
z&DD2cY}Al^y$24-H>__|zM)Y)hxHp6lW#y&%<zQ#@n2`m;y&BopU+P{F~x+vGq?3^
zki2-@-z(Rop6u4LX-VT}CB@HAir<hFKRYRYRZ{$3=l{_rVbF_n-i6~ACB@I=h@?-~
jB#qybG=5Xk_#H{{Ym(v<lH!*o#ZNW;ZL8(slkR^2-TQ^l

diff --git a/locale/ja/LC_MESSAGES/django.po b/locale/ja/LC_MESSAGES/django.po
index 194b7c6..559593d 100644
--- a/locale/ja/LC_MESSAGES/django.po
+++ b/locale/ja/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-09-04 13:40+0000\n"
+"POT-Creation-Date: 2026-09-04 13:53+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -420,7 +420,7 @@ msgid "— click columns in order"
 msgstr "— 列を順にクリック"
 
 #: planner_lab/templates/partials/index_lab.html:64
-#: templates/partials/detail.html:151 templates/partials/detail.html:490
+#: templates/partials/detail.html:160 templates/partials/detail.html:499
 msgid "unique"
 msgstr "ユニーク"
 
@@ -569,15 +569,15 @@ msgstr "新しい接続"
 msgid "Defaults point at the bundled sample DB."
 msgstr "初期値は同梱のサンプルDBを指しています。"
 
-#: templates/index.html:16 templates/partials/detail.html:70
-#: templates/partials/detail.html:372 templates/partials/detail.html:405
+#: templates/index.html:16 templates/partials/detail.html:79
+#: templates/partials/detail.html:381 templates/partials/detail.html:414
 #: templates/partials/replication.html:172
 msgid "Type"
 msgstr "種別"
 
-#: templates/index.html:17 templates/partials/detail.html:69
-#: templates/partials/detail.html:138 templates/partials/detail.html:368
-#: templates/partials/detail.html:481 templates/partials/extensions.html:28
+#: templates/index.html:17 templates/partials/detail.html:78
+#: templates/partials/detail.html:147 templates/partials/detail.html:377
+#: templates/partials/detail.html:490 templates/partials/extensions.html:28
 #: templates/partials/extensions.html:64 templates/partials/objects.html:34
 #: templates/partials/objects.html:95 templates/partials/objects.html:184
 #: templates/partials/objects.html:252 templates/partials/objects.html:263
@@ -586,8 +586,8 @@ msgstr "種別"
 msgid "Name"
 msgstr "名前"
 
-#: templates/index.html:17 templates/partials/detail.html:378
-#: templates/partials/detail.html:481 templates/partials/objects.html:188
+#: templates/index.html:17 templates/partials/detail.html:387
+#: templates/partials/detail.html:490 templates/partials/objects.html:188
 #: templates/partials/objects.html:283 templates/partials/objects.html:310
 msgid "(optional)"
 msgstr "（任意）"
@@ -889,7 +889,7 @@ msgstr "対象"
 msgid "Source DB"
 msgstr "元DB"
 
-#: templates/partials/backups.html:17 templates/partials/detail.html:141
+#: templates/partials/backups.html:17 templates/partials/detail.html:150
 #: templates/partials/health.html:69 templates/partials/health.html:169
 #: templates/partials/health.html:270 templates/partials/health.html:423
 #: templates/partials/objects.html:37
@@ -1018,8 +1018,8 @@ msgstr "子（参照する側）"
 msgid "Parent (referenced)"
 msgstr "親（参照される側）"
 
-#: templates/partials/dependencies.html:88 templates/partials/detail.html:53
-#: templates/partials/detail.html:139 templates/partials/health.html:226
+#: templates/partials/dependencies.html:88 templates/partials/detail.html:62
+#: templates/partials/detail.html:148 templates/partials/health.html:226
 #: templates/partials/health.html:316
 msgid "Columns"
 msgstr "列"
@@ -1028,107 +1028,93 @@ msgstr "列"
 msgid "Constraint"
 msgstr "制約"
 
-#: templates/partials/detail.html:12
-#, python-format
-msgid "%(nc)s column"
-msgid_plural "%(nc)s columns"
-msgstr[0] "%(nc)s 列"
-msgstr[1] "%(nc)s 列"
-
-#: templates/partials/detail.html:13
-#, python-format
-msgid "previewing up to %(nr)s row"
-msgid_plural "previewing up to %(nr)s rows"
-msgstr[0] "最大 %(nr)s 行をプレビュー"
-msgstr[1] "最大 %(nr)s 行をプレビュー"
-
-#: templates/partials/detail.html:20
+#: templates/partials/detail.html:29
 msgid "Open in SQL"
 msgstr "SQL で開く"
 
-#: templates/partials/detail.html:24
+#: templates/partials/detail.html:33
 msgid "backup"
 msgstr "バックアップ"
 
-#: templates/partials/detail.html:26
+#: templates/partials/detail.html:35
 msgid "pg_dump this table as plain SQL"
 msgstr "このテーブルを平文SQLで pg_dump"
 
-#: templates/partials/detail.html:29
+#: templates/partials/detail.html:38
 msgid "pg_dump this table in custom format"
 msgstr "このテーブルをカスタム形式で pg_dump"
 
-#: templates/partials/detail.html:37
+#: templates/partials/detail.html:46
 msgid "export"
 msgstr "エクスポート"
 
-#: templates/partials/detail.html:39
+#: templates/partials/detail.html:48
 msgid "Download every row as CSV"
 msgstr "全行を CSV でダウンロード"
 
-#: templates/partials/detail.html:41
+#: templates/partials/detail.html:50
 msgid "Download every row as JSON"
 msgstr "全行を JSON でダウンロード"
 
-#: templates/partials/detail.html:44
+#: templates/partials/detail.html:53
 msgid "Append rows from a CSV file"
 msgstr "CSV ファイルから行を追加"
 
-#: templates/partials/detail.html:44
+#: templates/partials/detail.html:53
 msgid "import"
 msgstr "インポート"
 
-#: templates/partials/detail.html:45 templates/partials/objects.html:65
+#: templates/partials/detail.html:54 templates/partials/objects.html:65
 msgid "rename"
 msgstr "リネーム"
 
-#: templates/partials/detail.html:54 templates/partials/health.html:25
+#: templates/partials/detail.html:63 templates/partials/health.html:25
 msgid "Indexes"
 msgstr "インデックス"
 
-#: templates/partials/detail.html:55
+#: templates/partials/detail.html:64
 msgid "Data"
 msgstr "データ"
 
-#: templates/partials/detail.html:57
+#: templates/partials/detail.html:66
 msgid "Danger"
 msgstr "危険"
 
-#: templates/partials/detail.html:63 templates/partials/detail.html:382
+#: templates/partials/detail.html:72 templates/partials/detail.html:391
 msgid "+ Add column"
 msgstr "+ 列を追加"
 
-#: templates/partials/detail.html:71 templates/partials/health.html:114
+#: templates/partials/detail.html:80 templates/partials/health.html:114
 msgid "Nullable"
 msgstr "NULL 許容"
 
-#: templates/partials/detail.html:72 templates/partials/detail.html:378
-#: templates/partials/detail.html:449
+#: templates/partials/detail.html:81 templates/partials/detail.html:387
+#: templates/partials/detail.html:458
 msgid "Default"
 msgstr "デフォルト"
 
-#: templates/partials/detail.html:84
+#: templates/partials/detail.html:93
 msgid "yes"
 msgstr "はい"
 
-#: templates/partials/detail.html:84
+#: templates/partials/detail.html:93
 msgid "no"
 msgstr "いいえ"
 
-#: templates/partials/detail.html:87
+#: templates/partials/detail.html:96
 msgid "generated"
 msgstr "生成列"
 
-#: templates/partials/detail.html:99
+#: templates/partials/detail.html:108
 msgid "shape"
 msgstr "構造"
 
-#: templates/partials/detail.html:102 templates/partials/objects.html:108
+#: templates/partials/detail.html:111 templates/partials/objects.html:108
 #: templates/partials/objects.html:152
 msgid "edit"
 msgstr "編集"
 
-#: templates/partials/detail.html:104
+#: templates/partials/detail.html:113
 #, python-format
 msgid ""
 "Drop column &quot;%(col)s&quot; from %(schema)s.%(table)s? This permanently "
@@ -1137,116 +1123,116 @@ msgstr ""
 "%(schema)s.%(table)s から列 &quot;%(col)s&quot; を削除しますか？データは完全"
 "に削除されます。"
 
-#: templates/partials/detail.html:108 templates/partials/detail.html:166
+#: templates/partials/detail.html:117 templates/partials/detail.html:175
 #: templates/partials/objects.html:69 templates/partials/objects.html:112
 #: templates/partials/objects.html:156 templates/partials/replication.html:198
 msgid "drop"
 msgstr "削除"
 
-#: templates/partials/detail.html:118
+#: templates/partials/detail.html:127
 msgid "Sampling…"
 msgstr "サンプリング中…"
 
-#: templates/partials/detail.html:128
+#: templates/partials/detail.html:137
 msgid "Try an index and measure it before creating it for real"
 msgstr "本番作成の前にインデックスを試して計測します"
 
-#: templates/partials/detail.html:129
+#: templates/partials/detail.html:138
 msgid "Try an index"
 msgstr "インデックスを試す"
 
-#: templates/partials/detail.html:131 templates/partials/detail.html:491
+#: templates/partials/detail.html:140 templates/partials/detail.html:500
 msgid "+ Create index"
 msgstr "+ インデックスを作成"
 
-#: templates/partials/detail.html:140 templates/partials/detail.html:485
+#: templates/partials/detail.html:149 templates/partials/detail.html:494
 msgid "Method"
 msgstr "方式"
 
-#: templates/partials/detail.html:150 templates/partials/replication.html:26
+#: templates/partials/detail.html:159 templates/partials/replication.html:26
 msgid "primary"
 msgstr "主キー"
 
-#: templates/partials/detail.html:152 templates/partials/health.html:187
+#: templates/partials/detail.html:161 templates/partials/health.html:187
 msgid "A concurrent build failed — this index is unusable; drop it."
 msgstr "並行ビルドに失敗 — このインデックスは使用不可です。削除してください。"
 
-#: templates/partials/detail.html:152
+#: templates/partials/detail.html:161
 msgid "invalid"
 msgstr "無効"
 
-#: templates/partials/detail.html:159
+#: templates/partials/detail.html:168
 msgid "pk"
 msgstr "pk"
 
-#: templates/partials/detail.html:162
+#: templates/partials/detail.html:171
 #, python-format
 msgid "Drop index &quot;%(name)s&quot;?"
 msgstr "インデックス &quot;%(name)s&quot; を削除しますか？"
 
-#: templates/partials/detail.html:175
+#: templates/partials/detail.html:184
 msgid "No indexes on this table yet."
 msgstr "このテーブルにはまだインデックスがありません。"
 
-#: templates/partials/detail.html:190
+#: templates/partials/detail.html:199
 msgid "column…"
 msgstr "列…"
 
-#: templates/partials/detail.html:200
+#: templates/partials/detail.html:209
 msgid "contains"
 msgstr "を含む"
 
-#: templates/partials/detail.html:201
+#: templates/partials/detail.html:210
 msgid "starts with"
 msgstr "で始まる"
 
-#: templates/partials/detail.html:202
+#: templates/partials/detail.html:211
 msgid "is null"
 msgstr "が NULL"
 
-#: templates/partials/detail.html:203
+#: templates/partials/detail.html:212
 msgid "is not null"
 msgstr "が NULL でない"
 
-#: templates/partials/detail.html:206
+#: templates/partials/detail.html:215
 msgid "value"
 msgstr "値"
 
-#: templates/partials/detail.html:208
+#: templates/partials/detail.html:217
 msgid "Remove condition"
 msgstr "条件を削除"
 
-#: templates/partials/detail.html:212
+#: templates/partials/detail.html:221
 msgid "+ Condition"
 msgstr "+ 条件"
 
-#: templates/partials/detail.html:213
+#: templates/partials/detail.html:222
 msgid "Apply filters"
 msgstr "フィルタを適用"
 
-#: templates/partials/detail.html:214
+#: templates/partials/detail.html:223
 msgid "All conditions are ANDed · read-only"
 msgstr "全条件は AND 結合・読み取り専用"
 
-#: templates/partials/detail.html:223
+#: templates/partials/detail.html:232
 #, fuzzy, python-format
 #| msgid "rows %(n)s"
 msgid "rows %(a)s–%(b)s"
 msgstr "行 %(n)s"
 
-#: templates/partials/detail.html:225
+#: templates/partials/detail.html:234
 #, fuzzy, python-format
 #| msgid "Rows: about %(n)s (estimated from statistics, last analyzed %(d)s)"
 msgid "of about %(n)s (estimated from statistics)"
 msgstr "行数: 約 %(n)s（統計からの推定・最終 ANALYZE %(d)s）"
 
-#: templates/partials/detail.html:227
+#: templates/partials/detail.html:236
 #, fuzzy
 #| msgid "Rows: unknown (this table has never been analyzed)"
 msgid "of an unknown total — this table has never been analyzed"
 msgstr "行数: 不明（このテーブルはまだ ANALYZE されていません）"
 
-#: templates/partials/detail.html:232
+#: templates/partials/detail.html:241
 msgid ""
 "A table with no primary key has no defined row order, so paging can repeat "
 "or skip rows."
@@ -1254,48 +1240,48 @@ msgstr ""
 "主キーの無いテーブルには決まった行の順序がないので、ページをめくると同じ行が"
 "二度出たり、どこにも出ない行ができることがあります。"
 
-#: templates/partials/detail.html:233
+#: templates/partials/detail.html:242
 msgid "⚠ No primary key — row order is not guaranteed between pages"
 msgstr "⚠ 主キーが無いため、ページ間で行の順序は保証されません"
 
-#: templates/partials/detail.html:240
+#: templates/partials/detail.html:249
 msgid "← Prev"
 msgstr "← 前"
 
-#: templates/partials/detail.html:244
+#: templates/partials/detail.html:253
 #, python-format
 msgid "page %(p)s of about %(t)s"
 msgstr "%(p)s / 約 %(t)s ページ"
 
-#: templates/partials/detail.html:246
+#: templates/partials/detail.html:255
 #, python-format
 msgid "page %(p)s"
 msgstr "%(p)s ページ"
 
-#: templates/partials/detail.html:251
+#: templates/partials/detail.html:260
 msgid "Next →"
 msgstr "次 →"
 
-#: templates/partials/detail.html:257
+#: templates/partials/detail.html:266
 #, fuzzy, python-format
 #| msgid "%(n)s row"
 #| msgid_plural "%(n)s rows"
 msgid "%(n)s rows"
 msgstr "%(n)s 行"
 
-#: templates/partials/detail.html:287
+#: templates/partials/detail.html:296
 msgid "This table is empty."
 msgstr "このテーブルは空です。"
 
-#: templates/partials/detail.html:298
+#: templates/partials/detail.html:307
 msgid "Truncate table"
 msgstr "テーブルを truncate"
 
-#: templates/partials/detail.html:299
+#: templates/partials/detail.html:308
 msgid "Delete every row. A safety snapshot is taken first."
 msgstr "全行を削除します。先に安全スナップショットを取得します。"
 
-#: templates/partials/detail.html:302
+#: templates/partials/detail.html:311
 #, python-format
 msgid ""
 "Truncate &quot;%(schema)s.%(table)s&quot;? This permanently deletes every "
@@ -1304,81 +1290,81 @@ msgstr ""
 "&quot;%(schema)s.%(table)s&quot; を truncate しますか？全行が完全に削除されま"
 "す。"
 
-#: templates/partials/detail.html:302 templates/partials/detail.html:314
+#: templates/partials/detail.html:311 templates/partials/detail.html:323
 #: templates/partials/objects.html:67 templates/partials/objects.html:110
 #: templates/partials/objects.html:154
 msgid "This runs:"
 msgstr "実行される SQL:"
 
-#: templates/partials/detail.html:302 templates/partials/detail.html:314
+#: templates/partials/detail.html:311 templates/partials/detail.html:323
 msgid "Rows: unknown (this table has never been analyzed)"
 msgstr "行数: 不明（このテーブルはまだ ANALYZE されていません）"
 
-#: templates/partials/detail.html:302 templates/partials/detail.html:314
+#: templates/partials/detail.html:311 templates/partials/detail.html:323
 #, python-format
 msgid "Rows: about %(n)s (estimated from statistics, last analyzed %(d)s)"
 msgstr "行数: 約 %(n)s（統計からの推定・最終 ANALYZE %(d)s）"
 
-#: templates/partials/detail.html:302 templates/partials/detail.html:314
+#: templates/partials/detail.html:311 templates/partials/detail.html:323
 msgid "Referenced by:"
 msgstr "参照しているテーブル:"
 
-#: templates/partials/detail.html:302 templates/partials/detail.html:314
+#: templates/partials/detail.html:311 templates/partials/detail.html:323
 msgid "A DROP … CASCADE would also drop:"
 msgstr "DROP … CASCADE で一緒に消えるもの:"
 
-#: templates/partials/detail.html:305
+#: templates/partials/detail.html:314
 msgid "Truncate"
 msgstr "Truncate"
 
-#: templates/partials/detail.html:310 templates/partials/detail.html:317
+#: templates/partials/detail.html:319 templates/partials/detail.html:326
 msgid "Drop table"
 msgstr "テーブルを削除"
 
-#: templates/partials/detail.html:311
+#: templates/partials/detail.html:320
 msgid "Remove the table and all its data. A safety snapshot is taken first."
 msgstr "テーブルと全データを削除します。先に安全スナップショットを取得します。"
 
-#: templates/partials/detail.html:314
+#: templates/partials/detail.html:323
 #, python-format
 msgid "Drop table &quot;%(schema)s.%(table)s&quot;? This cannot be undone."
 msgstr ""
 "テーブル &quot;%(schema)s.%(table)s&quot; を削除しますか？元に戻せません。"
 
-#: templates/partials/detail.html:328
+#: templates/partials/detail.html:337
 msgid "Rename table"
 msgstr "テーブルをリネーム"
 
-#: templates/partials/detail.html:328
+#: templates/partials/detail.html:337
 msgid "Add column"
 msgstr "列を追加"
 
-#: templates/partials/detail.html:329
+#: templates/partials/detail.html:338
 msgid "Edit column"
 msgstr "列を編集"
 
-#: templates/partials/detail.html:329
+#: templates/partials/detail.html:338
 msgid "Create index"
 msgstr "インデックスを作成"
 
-#: templates/partials/detail.html:330 templates/partials/detail.html:358
+#: templates/partials/detail.html:339 templates/partials/detail.html:367
 msgid "Import CSV"
 msgstr "CSV インポート"
 
-#: templates/partials/detail.html:341 templates/partials/objects.html:201
+#: templates/partials/detail.html:350 templates/partials/objects.html:201
 msgid "New name"
 msgstr "新しい名前"
 
-#: templates/partials/detail.html:343 templates/partials/detail.html:396
+#: templates/partials/detail.html:352 templates/partials/detail.html:405
 #: templates/partials/objects.html:203
 msgid "Rename"
 msgstr "リネーム"
 
-#: templates/partials/detail.html:352
+#: templates/partials/detail.html:361
 msgid "CSV file"
 msgstr "CSV ファイル"
 
-#: templates/partials/detail.html:356
+#: templates/partials/detail.html:365
 msgid ""
 "The first row must be a header; columns are matched to the table by name. "
 "Rows are appended in one transaction — if any row's types don't fit, the "
@@ -1388,43 +1374,43 @@ msgstr ""
 "は1つのトランザクションで追加され、いずれかの行の型が合わない場合はインポート"
 "全体がロールバックされます。事前に安全のためのスナップショットを取得します。"
 
-#: templates/partials/detail.html:369
+#: templates/partials/detail.html:378
 msgid "column name"
 msgstr "列名"
 
-#: templates/partials/detail.html:381
+#: templates/partials/detail.html:390
 msgid "not null"
 msgstr "not null"
 
-#: templates/partials/detail.html:393
+#: templates/partials/detail.html:402
 msgid "Rename to"
 msgstr "リネーム先"
 
-#: templates/partials/detail.html:408
+#: templates/partials/detail.html:417
 msgid "(current)"
 msgstr "（現在）"
 
-#: templates/partials/detail.html:411
+#: templates/partials/detail.html:420
 msgid "Change"
 msgstr "変更"
 
-#: templates/partials/detail.html:416
+#: templates/partials/detail.html:425
 msgid "Nullability"
 msgstr "NULL許可"
 
-#: templates/partials/detail.html:424
+#: templates/partials/detail.html:433
 msgid "set NOT NULL"
 msgstr "NOT NULL を設定"
 
-#: templates/partials/detail.html:424
+#: templates/partials/detail.html:433
 msgid "drop NOT NULL"
 msgstr "NOT NULL を解除"
 
-#: templates/partials/detail.html:435
+#: templates/partials/detail.html:444
 msgid "Rehearse it"
 msgstr "リハーサル"
 
-#: templates/partials/detail.html:440
+#: templates/partials/detail.html:449
 msgid ""
 "Runs the real statement and rolls it back. It takes a real ACCESS EXCLUSIVE "
 "lock while it runs, so readers queue behind it — briefly, but for real."
@@ -1432,27 +1418,27 @@ msgstr ""
 "本物の文を実行して、ロールバックする。実行中は本物の ACCESS EXCLUSIVE ロック"
 "を取るので、読み取りはその後ろに並ぶ。短いが、本物。"
 
-#: templates/partials/detail.html:449
+#: templates/partials/detail.html:458
 msgid "(empty drops it)"
 msgstr "（空で解除）"
 
-#: templates/partials/detail.html:452 templates/partials/settings_row.html:42
+#: templates/partials/detail.html:461 templates/partials/settings_row.html:42
 msgid "Set"
 msgstr "設定"
 
-#: templates/partials/detail.html:468
+#: templates/partials/detail.html:477
 msgid "Click columns in the order you want them indexed."
 msgstr "インデックスしたい順に列をクリックしてください。"
 
-#: templates/partials/detail.html:482
+#: templates/partials/detail.html:491
 msgid "index name"
 msgstr "インデックス名"
 
-#: templates/partials/detail.html:492
+#: templates/partials/detail.html:501
 msgid "built CONCURRENTLY"
 msgstr "CONCURRENTLY で作成"
 
-#: templates/partials/error.html:2 templates/workspace.html:106
+#: templates/partials/error.html:2 templates/workspace.html:115
 msgid "Could not connect"
 msgstr "接続できませんでした"
 
@@ -3025,14 +3011,10 @@ msgstr ""
 msgid "overview"
 msgstr "概要"
 
-#: templates/workspace.html:75
-msgid "— hover for the section menu"
-msgstr "— ホバーでセクションメニュー"
-
-#: templates/workspace.html:100
+#: templates/workspace.html:109
 msgid "+ New connection"
 msgstr "+ 新しい接続"
 
-#: templates/workspace.html:108
+#: templates/workspace.html:117
 msgid "back to connections"
 msgstr "接続一覧に戻る"
diff --git a/planner_lab/tests.py b/planner_lab/tests.py
index 75e8259..1ba861b 100644
--- a/planner_lab/tests.py
+++ b/planner_lab/tests.py
@@ -258,7 +258,7 @@ def test_rehearse_reports_a_verdict_and_changes_nothing(self):
         page.locator("#detail h2").wait_for()
         # 既定タブは Data（テーブル名を押した人が見たいのは中身）。
         # 列を触るテストは、まず Columns へ移る。
-        page.get_by_role("button", name="Columns", exact=True).click()
+        page.locator(".subtab", has_text="Columns").click()
 
         page.locator("#detail tbody tr", has_text="x").get_by_role(
             "button", name="edit").click()
diff --git a/templates/partials/detail.html b/templates/partials/detail.html
index 7ca9573..de20b02 100644
--- a/templates/partials/detail.html
+++ b/templates/partials/detail.html
@@ -3,7 +3,7 @@
 or, for one-click destructive ops, behind an hx-confirm. `drawer` holds the open
 form's kind; `ctx` carries the row the drawer is acting on. Submits target
 #detail, so the whole panel (drawer included) re-renders and resets.{% endcomment %}
-<div class="space-y-5" {# 既定タブは Data ── テーブル名を押した人が見たいのは中身で、列の構成は
+<div class="space-y-3" {# 既定タブは Data ── テーブル名を押した人が見たいのは中身で、列の構成は
    自分で書いたので知っている。
 
    ただし**同じテーブルの中で操作したときは、いま見ていたタブに留まる**。
@@ -20,11 +20,7 @@
   <div class="flex items-start justify-between gap-3">
     <div>
       <h2 class="text-lg font-semibold mono">{{ schema }}.{{ table }}</h2>
-      <p class="text-xs text-zinc-400">
-        {% blocktrans count nc=columns|length %}{{ nc }} column{% plural %}{{ nc }} columns{% endblocktrans %} ·
-        {% blocktrans count nr=preview_rows|length %}previewing up to {{ nr }} row{% plural %}previewing up to {{ nr }} rows{% endblocktrans %}
-      </p>
-      {% if table_comment %}<p class="mt-1 text-xs text-zinc-500 max-w-prose whitespace-normal">{{ table_comment }}</p>{% endif %}
+      {% if table_comment %}<p class="text-xs text-zinc-500 max-w-prose whitespace-normal">{{ table_comment }}</p>{% endif %}
     </div>
     <div class="shrink-0 flex items-center gap-1.5">
       <button hx-get="{% url 'query' connection.pk %}?sql={{ query_sql|urlencode }}"
@@ -62,8 +58,8 @@ <h2 class="text-lg font-semibold mono">{{ schema }}.{{ table }}</h2>
 
   <!-- Subtabs -->
   <nav class="flex items-center gap-1 border-b border-zinc-800 pb-2">
-    <button class="subtab" :class="tab === 'columns' && 'subtab-on'" @click="tab = 'columns'">{% trans "Columns" %}</button>
-    <button class="subtab" :class="tab === 'indexes' && 'subtab-on'" @click="tab = 'indexes'">{% trans "Indexes" %}</button>
+    <button class="subtab" :class="tab === 'columns' && 'subtab-on'" @click="tab = 'columns'">{% trans "Columns" %} <span class="text-zinc-600 tabular-nums">{{ columns|length|intcomma }}</span></button>
+    <button class="subtab" :class="tab === 'indexes' && 'subtab-on'" @click="tab = 'indexes'">{% trans "Indexes" %} <span class="text-zinc-600 tabular-nums">{{ indexes|length|intcomma }}</span></button>
     <button class="subtab" :class="tab === 'data' && 'subtab-on'" @click="tab = 'data'">{% trans "Data" %}</button>
     <button class="subtab ml-auto" :class="tab === 'danger' && 'subtab-on text-red-300'"
             @click="tab = 'danger'">{% trans "Danger" %}</button>
diff --git a/templates/workspace.html b/templates/workspace.html
index f84a504..a4f4efe 100644
--- a/templates/workspace.html
+++ b/templates/workspace.html
@@ -71,7 +71,16 @@
 
     </div>
   </div>
-  <span class="text-xs text-zinc-500 ml-1 hidden sm:inline">{% trans "— hover for the section menu" %}</span>
+
+  {# バーの右側。**いま何を見ているか**を置く ── #detail は htmx で丸ごと
+     入れ替わり、ブラウザの履歴にも残らないので、そうでないと現在地が
+     タイトルにしか無い。テーブルを開いたときだけ出す（サイドバーの選択
+     `sel` を見ている。ここは htmx の差し替え範囲の外なので、サーバ往復も
+     OOB swap も要らない）。 #}
+  <span x-show="sel" x-cloak class="ml-3 flex items-center gap-1.5 text-xs text-zinc-500 min-w-0">
+    <span class="text-zinc-700">/</span>
+    <span class="mono truncate text-zinc-300" x-text="sel"></span>
+  </span>
 </nav>
 {% endblock %}
 

From 2247ffb7eab2c131ad1e93f0a1be26a6eddd5b05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=94=B0=E7=95=91=E3=81=B2=E3=81=A8=E3=81=97?=
 <hitoshi1964@gmail.com>
Date: Fri, 4 Sep 2026 23:03:26 +0900
Subject: [PATCH 3/4] =?UTF-8?q?=E6=B3=A8=E9=87=88=E3=81=8C=E7=94=BB?=
 =?UTF-8?q?=E9=9D=A2=E3=81=AB=E5=87=BA=E3=81=A6=E3=81=84=E3=81=9F=E3=81=AE?=
 =?UTF-8?q?=E3=82=92=E7=9B=B4=E3=81=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

`<div class="…" {# 説明 #} x-data="…">` と書いた。Django は**タグの属性の中の
`{#…#}` を注釈として解釈しない**ので、説明文がそのまま画面に出ていた。
ヘッダの真ん中に、私が書いた実装メモが表示されていた。2 か所やった。

`{% comment %}` に直し、置く場所もタグの外にした。HTML コメントでも画面には
出ないが、ソースには残るので使わない（他のテンプレートと揃える）。

目で見張るものではないので、テンプレートを走査して**タグの中に `{#` があれば
落ちる**テストを置いた。直す前の状態で detail.html:6 を名指しで捕まえることを
確認済み。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XkRWmyQf9Rt3sYjjkPSq4Y
---
 core/tests.py                  | 28 ++++++++++++++++++++++++++++
 templates/partials/detail.html | 16 ++++++++++------
 templates/workspace.html       |  9 ++++-----
 3 files changed, 42 insertions(+), 11 deletions(-)

diff --git a/core/tests.py b/core/tests.py
index e5c05c8..1889ff8 100644
--- a/core/tests.py
+++ b/core/tests.py
@@ -628,6 +628,34 @@ def test_never_analyzed_becomes_none_not_minus_one(self):
         self.assertIn("NULL", LIST_TABLES_SQL)
 
 
+class TemplateCommentPlacementTests(SimpleTestCase):
+    """注釈がタグの属性の中に無いこと。
+
+    2026-09-04 の実害: `<div class="…" {# … #} x-data="…">` と書いたら、Django は
+    属性の中の `{#…#}` を注釈として解釈せず、**そのまま画面に出た**。2 か所やった。
+    ヘッダの真ん中に説明文が表示されていた。
+
+    タグの外に置くか、`{% comment %}` を使えば起きない。目で見張るものではないので
+    機械に見せる。
+    """
+
+    def test_no_comment_inside_a_tag(self):
+        import pathlib
+        import re
+
+        root = pathlib.Path(__file__).resolve().parent.parent / "templates"
+        offenders = []
+        for path in sorted(root.rglob("*.html")):
+            text = path.read_text(encoding="utf-8")
+            # `<` から `>` までの間に `{#` があれば、それは属性の中。
+            for m in re.finditer(r"<[a-zA-Z][^>]*?\{#", text, re.S):
+                line = text[: m.start()].count("\n") + 1
+                offenders.append(f"{path.name}:{line}")
+        self.assertEqual(
+            offenders, [],
+            "タグの中に {# #} がある（画面にそのまま出る）: " + ", ".join(offenders))
+
+
 class PreviewPagingTests(SimpleTestCase):
     """テーブルの中身のページ送り。
 
diff --git a/templates/partials/detail.html b/templates/partials/detail.html
index de20b02..84e0298 100644
--- a/templates/partials/detail.html
+++ b/templates/partials/detail.html
@@ -3,13 +3,17 @@
 or, for one-click destructive ops, behind an hx-confirm. `drawer` holds the open
 form's kind; `ctx` carries the row the drawer is acting on. Submits target
 #detail, so the whole panel (drawer included) re-renders and resets.{% endcomment %}
-<div class="space-y-3" {# 既定タブは Data ── テーブル名を押した人が見たいのは中身で、列の構成は
-   自分で書いたので知っている。
+{% comment %}既定タブは Data ── テーブル名を押した人が見たいのは中身で、列の構成は
+自分で書いたので知っている。
 
-   ただし**同じテーブルの中で操作したときは、いま見ていたタブに留まる**。
-   この panel は htmx で丸ごと差し替わるので、素朴に書くと列を 1 つ直すたびに
-   Data へ弾き飛ばされる。直前に見ていたタブをテーブル名つきで覚えておき、
-   同じテーブルなら戻す（別のテーブルへ移ったら Data から始める）。 #}
+ただし**同じテーブルの中で操作したときは、いま見ていたタブに留まる**。この panel は
+htmx で丸ごと差し替わるので、素朴に書くと列を 1 つ直すたびに Data へ弾き飛ばされる。
+直前に見ていたタブをテーブル名つきで覚えておき、同じテーブルなら戻す（別のテーブルへ
+移ったら Data から始める）。
+
+⚠️ 注釈は**タグの外**に置くこと。属性の中に書いた `{#…#}` は Django に解釈されず、
+そのまま画面へ出る（2026-09-04 に 2 か所やらかした）。{% endcomment %}
+<div class="space-y-3"
         x-data="{
           tab: (window.__cli2uiTab && window.__cli2uiTab.of === '{{ schema|escapejs }}.{{ table|escapejs }}')
                  ? window.__cli2uiTab.tab : 'data',
diff --git a/templates/workspace.html b/templates/workspace.html
index a4f4efe..ce8a231 100644
--- a/templates/workspace.html
+++ b/templates/workspace.html
@@ -72,11 +72,10 @@
     </div>
   </div>
 
-  {# バーの右側。**いま何を見ているか**を置く ── #detail は htmx で丸ごと
-     入れ替わり、ブラウザの履歴にも残らないので、そうでないと現在地が
-     タイトルにしか無い。テーブルを開いたときだけ出す（サイドバーの選択
-     `sel` を見ている。ここは htmx の差し替え範囲の外なので、サーバ往復も
-     OOB swap も要らない）。 #}
+  {% comment %}バーの右側。いま何を見ているかを置く ── #detail は htmx で丸ごと
+  入れ替わり、ブラウザの履歴にも残らないので、そうでないと現在地がタイトルにしか
+  無い。テーブルを開いたときだけ出す（サイドバーの選択 sel を見ている。ここは
+  htmx の差し替え範囲の外なので、サーバ往復も OOB swap も要らない）。{% endcomment %}
   <span x-show="sel" x-cloak class="ml-3 flex items-center gap-1.5 text-xs text-zinc-500 min-w-0">
     <span class="text-zinc-700">/</span>
     <span class="mono truncate text-zinc-300" x-text="sel"></span>

From 8ce5ca65450a7053fd21d2aae718b614c5054bd1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=94=B0=E7=95=91=E3=81=B2=E3=81=A8=E3=81=97?=
 <hitoshi1964@gmail.com>
Date: Fri, 4 Sep 2026 23:06:25 +0900
Subject: [PATCH 4/4] =?UTF-8?q?=E3=83=87=E3=83=BC=E3=82=BF=E3=81=AE?=
 =?UTF-8?q?=E3=82=B0=E3=83=AA=E3=83=83=E3=83=89=E3=81=A0=E3=81=91=E3=81=8C?=
 =?UTF-8?q?=E3=82=B9=E3=82=AF=E3=83=AD=E3=83=BC=E3=83=AB=E3=81=99=E3=82=8B?=
 =?UTF-8?q?=E3=82=88=E3=81=86=E3=81=AB=E3=81=99=E3=82=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

1000 行あるので、ページ全体が動くと列名もページ送りも画面の外へ流れていた。

- グリッドを overflow-auto max-h-[60vh] にし、列名を sticky に。
  SQL ランナーと絞り込みの結果は既にそうなっていて、**ここだけ揃っていなかった**
- ページャも上に貼り付ける。1000 行を送った先で「いま何ページ目か」を
  見に戻るのに、上まで戻らなくていい

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XkRWmyQf9Rt3sYjjkPSq4Y
---
 templates/partials/detail.html | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/templates/partials/detail.html b/templates/partials/detail.html
index 84e0298..1140034 100644
--- a/templates/partials/detail.html
+++ b/templates/partials/detail.html
@@ -230,7 +230,11 @@ <h2 class="text-lg font-semibold mono">{{ schema }}.{{ table }}</h2>
     {% if preview %}
     <!-- ページ送り。行数は数えない（count(*) は毎回の全走査）ので、統計の推定を
          「約」と断って出す。順序が決まっていないテーブルではそれも言う。 -->
-    <div class="flex flex-wrap items-center gap-3 text-xs text-zinc-400">
+    {% comment %}ページャはグリッドの上に貼り付ける。グリッドだけがスクロールする
+    ので流れはしないが、1000 行を送った先で「いま何ページ目か」を見に戻るのに
+    上まで戻る必要はない。{% endcomment %}
+    <div class="sticky top-14 z-10 -mx-1 px-1 py-1.5 bg-zinc-950/95 backdrop-blur
+                flex flex-wrap items-center gap-3 text-xs text-zinc-400">
       <span>
         {% blocktrans with a=preview.first_row|intcomma b=preview.last_row|intcomma %}rows {{ a }}–{{ b }}{% endblocktrans %}
         {% if preview.estimated_rows is not None %}
@@ -277,9 +281,12 @@ <h2 class="text-lg font-semibold mono">{{ schema }}.{{ table }}</h2>
     <div id="filter-result">
       <div class="bg-zinc-900/60 border border-zinc-800 rounded-xl overflow-hidden">
         {% if preview_rows %}
-          <div class="overflow-x-auto">
+          {% comment %}グリッドだけが縦にスクロールする。1000 行あるので、ページ全体が
+          動くと列名もページ送りも画面の外へ流れてしまう。SQL ランナーと絞り込みの
+          結果は既にこうなっていて、ここだけ揃っていなかった。{% endcomment %}
+          <div class="overflow-auto max-h-[60vh]">
             <table class="w-full text-sm">
-              <thead class="text-left text-xs uppercase tracking-wide text-zinc-400">
+              <thead class="text-left text-xs uppercase tracking-wide text-zinc-400 sticky top-0 bg-zinc-900">
                 <tr class="border-b border-zinc-800">
                   {% for c in preview_columns %}<th class="px-4 py-2 font-medium mono whitespace-nowrap">{{ c }}</th>{% endfor %}
                 </tr>