Document create_table_with_schema_locked setting (#20013)

* Document `create_table_with_schema_locked` setting

Fixes DOC-11544

Summary of changes:

- Add `create_table_with_schema_locked` session var docs, with a link to
  the `schema_locked` table storage parameter.

- Since table storage parameters can be added during `CREATE TABLE`, and
  the list of storage params is in an include file, we share the include
  file into the `CREATE TABLE` docs as well (they were already in `ALTER
  TABLE` docs).

Co-authored-by: Ryan Kuo <8740013+taroface@users.noreply.github.com>

Author: rmloveland

src/current/_includes/v25.3/misc/session-vars.md

@@ -9,6 +9,7 @@
 | <a id="copy-transaction-quality-of-service"></a> `copy_transaction_quality_of_service` | The default quality of service for [`COPY`]({% link {{ page.version.version }}/copy.md %}) statements in the current session. The supported options are `regular`, `critical`, and `background`. See [Set quality of service level]({% link {{ page.version.version }}/admission-control.md %}#copy-qos). | `background` | Yes | Yes |
 | <a id="cost-scans-with-default-col-size"></a> `cost_scans_with_default_col_size` | Whether to prevent the optimizer from considering column size when costing plans. | `false` | Yes | Yes |
 | <a id="crdb-version"></a> `crdb_version` | The version of CockroachDB. | <code>CockroachDB OSS <i>version</i></code> | No | Yes |
+| <span class="version-tag">New in v25.3:</span> <a id="create_table_with_schema_locked"></a> `create_table_with_schema_locked` | When enabled, ensures that all tables created during a [session]({% link {{ page.version.version }}/show-sessions.md %}) enable the [`schema_locked` storage parameter]({% link {{ page.version.version }}/with-storage-parameter.md %}#storage-parameter-schema-locked), which disallows schema changes. | `off` | Yes | Yes |
 | <a id="database"></a> `database` | The [current database]({% link {{ page.version.version }}/sql-name-resolution.md %}#current-database). | Database in connection string, or empty if not specified. | Yes | Yes |
 | <a id="datestyle"></a> `datestyle` | The input string format for [`DATE`]({% link {{ page.version.version }}/date.md %}) and [`TIMESTAMP`]({% link {{ page.version.version }}/timestamp.md %}) values. Accepted values include `ISO,MDY`, `ISO,DMY`, and `ISO,YMD`. | The value set by the `sql.defaults.datestyle` [cluster setting]({% link {{ page.version.version }}/cluster-settings.md %}) (`ISO,MDY`, by default). | Yes | Yes |
 | <a id="default-int-size"></a> `default_int_size` | The size, in bytes, of an [`INT`]({% link {{ page.version.version }}/int.md %}) type. | `8` | Yes | Yes |

src/current/_includes/v25.3/misc/table-storage-parameters.md

@@ -1,7 +1,7 @@
 |                    Parameter name                    |                                                                    Description                                                                    | Data type | Default value |
 |------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------|-----------|---------------|
 | `exclude_data_from_backup`                           | Exclude the data in this table from any future backups.                                                                                           | Boolean   | `false`       |
-| `schema_locked` | Disallow [schema changes]({% link {{ page.version.version }}/online-schema-changes.md %}) on this table. Enabling `schema_locked` can help [improve performance of changefeeds]({% link {{ page.version.version }}/create-changefeed.md %}#disallow-schema-changes-on-tables-to-improve-changefeed-performance) running on this table. | Boolean | `false` |
+| <a name="storage-parameter-schema-locked"></a> `schema_locked` | Disallow [schema changes]({% link {{ page.version.version }}/online-schema-changes.md %}) on this table. Enabling `schema_locked` can help [improve performance of changefeeds]({% link {{ page.version.version }}/create-changefeed.md %}#disallow-schema-changes-on-tables-to-improve-changefeed-performance) running on this table. | Boolean | `false` |
 | `sql_stats_automatic_collection_enabled`             | Enable [automatic statistics collection]({% link {{ page.version.version }}/cost-based-optimizer.md %}#enable-and-disable-automatic-statistics-collection-for-tables) for this table. | Boolean   | `true`        |
 | `sql_stats_automatic_collection_min_stale_rows`      | Minimum number of stale rows in this table that will trigger a statistics refresh.                                                                | Integer   | 500           |
 | `sql_stats_automatic_collection_fraction_stale_rows` | Fraction of stale rows in this table that will trigger a statistics refresh.                                                                      | Float     | 0.2           |
@@ -12,4 +12,4 @@ The following parameters are included for PostgreSQL compatibility and do not af
 - `autovacuum_enabled`
 - `fillfactor`
 
-For the list of storage parameters that affect how [Row-Level TTL]({% link {{ page.version.version }}/row-level-ttl.md %}) works, see the list of [TTL storage parameters]({% link {{ page.version.version }}/row-level-ttl.md %}#ttl-storage-parameters).
+For the list of storage parameters that affect how [Row-Level TTL]({% link {{ page.version.version }}/row-level-ttl.md %}) works, see the list of [TTL storage parameters]({% link {{ page.version.version }}/row-level-ttl.md %}#ttl-storage-parameters).