SQL Queries v25.4 known limitations

taroface · taroface · commit a2e7ab645ab9 · 2025-10-27T18:10:42.000-04:00
diff --git a/src/current/_includes/v25.3/known-limitations/vector-limitations.md b/src/current/_includes/v25.3/known-limitations/vector-limitations.md
@@ -1,5 +1,4 @@
 - {% include {{ page.version.version }}/sql/vector-batch-inserts.md %}
-- Creating a vector index through a backfill disables mutations ([`INSERT`]({% link {{ page.version.version }}/insert.md %}), [`UPSERT`]({% link {{ page.version.version }}/upsert.md %}), [`UPDATE`]({% link {{ page.version.version }}/update.md %}), [`DELETE`]({% link {{ page.version.version }}/delete.md %})) on the table. [#144443](https://github.com/cockroachdb/cockroach/issues/144443)
 - `IMPORT INTO` is not supported on tables with vector indexes. You can import the vectors first and create the index after import is complete. [#145227](https://github.com/cockroachdb/cockroach/issues/145227)
 - The distance functions `vector_l1_ops`, `bit_hamming_ops`, and `bit_jaccard_ops` are not implemented. [#147839](https://github.com/cockroachdb/cockroach/issues/147839)
 - Index acceleration with filters is only supported if the filters match prefix columns. [#146145](https://github.com/cockroachdb/cockroach/issues/146145)
diff --git a/src/current/_includes/v25.4/known-limitations/data-domiciling-limitations.md b/src/current/_includes/v25.4/known-limitations/data-domiciling-limitations.md
@@ -1,4 +1,7 @@
 - When columns are [indexed]({% link {{ page.version.version }}/indexes.md %}), a subset of data from the indexed columns may appear in [meta ranges]({% link {{ page.version.version }}/architecture/distribution-layer.md %}#meta-ranges) or other system tables. CockroachDB synchronizes these system ranges and system tables across nodes. This synchronization does not respect any multi-region settings applied via either the [multi-region SQL statements]({% link {{ page.version.version }}/multiregion-overview.md %}), or the low-level [zone configs]({% link {{ page.version.version }}/configure-replication-zones.md %}) mechanism.
 - [Zone configs]({% link {{ page.version.version }}/configure-replication-zones.md %}) can be used for data placement but these features were historically built for performance, not for domiciling. The replication system's top priority is to prevent the loss of data and it may override the zone configurations if necessary to ensure data durability. For more information, see [Replication Controls]({% link {{ page.version.version }}/configure-replication-zones.md %}#types-of-constraints).
 - If your [log files]({% link {{ page.version.version }}/logging-overview.md %}) are kept in the region where they were generated, there is some cross-region leakage (like the system tables described previously), but the majority of user data that makes it into the logs is going to be homed in that region. If that's not strong enough, you can use the [log redaction functionality]({% link {{ page.version.version }}/configure-logs.md %}#redact-logs) to strip all raw data from the logs. You can also limit your log retention entirely.
-- If you start a node with a [`--locality`]({% link {{ page.version.version }}/cockroach-start.md %}#locality) flag that says the node is in region _A_, but the node is actually running in some region _B_, data domiciling based on the inferred node placement will not work. A CockroachDB node only knows its locality based on the text supplied to the `--locality` flag; it can not ensure that it is actually running in that physical location.
+- If you start a node with a [`--locality`]({% link {{ page.version.version }}/cockroach-start.md %}#locality) flag that says the node is in region _A_, but the node is actually running in some region _B_, data domiciling based on the inferred node placement will not work. A CockroachDB node only knows its locality based on the text supplied to the `--locality` flag; it can not ensure that it is actually running in that physical location.
+- When using the `infer_rbr_region_col_using_constraint` option, inserting rows with `DEFAULT` for the region column uses the database's primary region instead of inferring the region from the parent table via foreign-key constraint. [#150783](https://github.com/cockroachdb/cockroach/issues/150783)
+- {% include {{page.version.version}}/known-limitations/secondary-regions-with-regional-by-row-tables.md %}
+- {% include {{ page.version.version }}/known-limitations/enforce-home-region-limitations.md %}
diff --git a/src/current/_includes/v25.4/known-limitations/like-escape-performance.md b/src/current/_includes/v25.4/known-limitations/like-escape-performance.md
@@ -0,0 +1 @@
+`LIKE` queries with an `ESCAPE` clause cannot use index acceleration, which can result in significantly slower performance compared to standard `LIKE` queries. [#30192](https://github.com/cockroachdb/cockroach/issues/30192)
diff --git a/src/current/_includes/v25.4/known-limitations/read-committed-limitations.md b/src/current/_includes/v25.4/known-limitations/read-committed-limitations.md
@@ -2,5 +2,6 @@
 - Multi-column-family checks during updates are not supported under `READ COMMITTED` isolation. [#112488](https://github.com/cockroachdb/cockroach/issues/112488)
 - Because locks acquired by [foreign key]({% link {{ page.version.version }}/foreign-key.md %}) checks, [`SELECT FOR UPDATE`]({% link {{ page.version.version }}/select-for-update.md %}), and [`SELECT FOR SHARE`]({% link {{ page.version.version }}/select-for-update.md %}) are fully replicated under `READ COMMITTED` isolation, some queries experience a delay for Raft replication.
 - [Foreign key]({% link {{ page.version.version }}/foreign-key.md %}) checks are not performed in parallel under `READ COMMITTED` isolation.
+- Mixed-isolation-level workloads must enable foreign-key check locking for `SERIALIZABLE` transactions to avoid race conditions. [#151663](https://github.com/cockroachdb/cockroach/issues/151663)
 - [`SELECT FOR UPDATE` and `SELECT FOR SHARE`]({% link {{ page.version.version }}/select-for-update.md %}) statements are less optimized under `READ COMMITTED` isolation than under `SERIALIZABLE` isolation. Under `READ COMMITTED` isolation, `SELECT FOR UPDATE` and `SELECT FOR SHARE` usually perform an extra lookup join for every locked table when compared to the same queries under `SERIALIZABLE`. In addition, some optimization steps (such as de-correlation of correlated [subqueries]({% link {{ page.version.version }}/subqueries.md %})) are not currently performed on these queries.
 - Regardless of isolation level, [`SELECT FOR UPDATE` and `SELECT FOR SHARE`]({% link {{ page.version.version }}/select-for-update.md %}) statements in CockroachDB do not prevent insertion of new rows matching the search condition (i.e., [phantom reads]({% link {{ page.version.version }}/read-committed.md %}#non-repeatable-reads-and-phantom-reads)). This matches PostgreSQL behavior at all isolation levels. [#120673](https://github.com/cockroachdb/cockroach/issues/120673)
diff --git a/src/current/_includes/v25.4/known-limitations/rls-visibility-issue.md b/src/current/_includes/v25.4/known-limitations/rls-visibility-issue.md
diff --git a/src/current/_includes/v25.4/known-limitations/secondary-regions-with-regional-by-row-tables.md b/src/current/_includes/v25.4/known-limitations/secondary-regions-with-regional-by-row-tables.md
@@ -1,3 +1 @@
-[Secondary regions]({% link {{ page.version.version }}/multiregion-overview.md %}#secondary-regions) are not compatible with databases containing [`REGIONAL BY ROW`]({% link {{ page.version.version }}/table-localities.md %}#regional-by-row-tables) tables. CockroachDB does not prevent you from defining secondary regions on databases with regional by row tables, but the interaction of these features is not supported.
-
-Therefore, Cockroach Labs recommends that you avoid defining secondary regions on databases that use regional by row table configurations.
+[Secondary regions]({% link {{ page.version.version }}/multiregion-overview.md %}#secondary-regions) are not compatible with databases containing [`REGIONAL BY ROW`]({% link {{ page.version.version }}/table-localities.md %}#regional-by-row-tables) tables. CockroachDB does not prevent you from defining secondary regions on databases with regional by row tables, but the interaction of these features is not supported. Therefore, Cockroach Labs recommends that you avoid defining secondary regions on databases that use regional by row table configurations.
diff --git a/src/current/_includes/v25.4/known-limitations/stored-proc-limitations.md b/src/current/_includes/v25.4/known-limitations/stored-proc-limitations.md
@@ -1,3 +1,4 @@
 {% if page.name != "known-limitations.md" # New limitations in v24.2 %}
 {% endif %}
-- `COMMIT` and `ROLLBACK` statements are not supported within nested procedures. [#122266](https://github.com/cockroachdb/cockroach/issues/122266)
+- `COMMIT` and `ROLLBACK` statements are not supported within nested procedures. [#122266](https://github.com/cockroachdb/cockroach/issues/122266)
+- Pausable portals are not supported with `CALL` statements for stored procedures. [#151529](https://github.com/cockroachdb/cockroach/issues/151529)
diff --git a/src/current/_includes/v25.4/known-limitations/trigger-limitations.md b/src/current/_includes/v25.4/known-limitations/trigger-limitations.md
@@ -1,3 +1,7 @@
 - A [trigger function]({% link {{ page.version.version }}/triggers.md %}#trigger-function) that is used in an existing trigger cannot be replaced with `CREATE OR REPLACE` syntax. To use `CREATE OR REPLACE`, first [drop any triggers]({% link {{ page.version.version }}/drop-trigger.md %}) that are using the function. [#134555](https://github.com/cockroachdb/cockroach/issues/134555)
 - Hidden columns are not visible to triggers. [#133331](https://github.com/cockroachdb/cockroach/issues/133331)
+- The `REFERENCING` clause for `CREATE TRIGGER` is not supported. [#135655](https://github.com/cockroachdb/cockroach/issues/135655)
+- CockroachDB uses one-based indexing for the `TG_ARGV` array to maintain consistency with its array indexing system. This differs from PostgreSQL, where `TG_ARGV` uses zero-based indexing, unlike other PostgreSQL arrays. Trigger functions that reference `TG_ARGV` need to be adjusted when migrating from PostgreSQL. [#135311](https://github.com/cockroachdb/cockroach/issues/135311)
+- `UPDATE` triggers with a column list (using `UPDATE OF column_name` syntax) are not supported. [#135656](https://github.com/cockroachdb/cockroach/issues/135656)
+- Statement-level triggers for `TRUNCATE` events are not supported. [#135657](https://github.com/cockroachdb/cockroach/issues/135657)
 - {% include {{ page.version.version }}/known-limitations/drop-trigger-limitations.md %}
diff --git a/src/current/_includes/v25.4/known-limitations/udf-limitations.md b/src/current/_includes/v25.4/known-limitations/udf-limitations.md
@@ -3,6 +3,8 @@
 - A `RECORD`-returning UDF cannot be created without a `RETURN` statement in the root block, which would restrict the wildcard type to a concrete one. [#122945](https://github.com/cockroachdb/cockroach/issues/122945)
 - User-defined functions are not currently supported in:
     - Expressions (column, index, constraint) in tables. [#87699](https://github.com/cockroachdb/cockroach/issues/87699)
+    - Partial index predicates. [#155488](https://github.com/cockroachdb/cockroach/issues/155488)
 - User-defined functions cannot call themselves recursively. [#93049](https://github.com/cockroachdb/cockroach/issues/93049)
 - The `setval` function cannot be resolved when used inside UDF bodies. [#110860](https://github.com/cockroachdb/cockroach/issues/110860)
-- Casting subqueries to [user-defined types]({% link {{ page.version.version }}/create-type.md %}) in UDFs is not supported. [#108184](https://github.com/cockroachdb/cockroach/issues/108184)
+- Casting subqueries to [user-defined types]({% link {{ page.version.version }}/create-type.md %}) in UDFs is not supported. [#108184](https://github.com/cockroachdb/cockroach/issues/108184)
+- Views cannot reference a UDF that contains mutation statements (`INSERT`, `UPDATE`, `UPSERT`, `DELETE`). [#151686](https://github.com/cockroachdb/cockroach/issues/151686)
diff --git a/src/current/_includes/v25.4/known-limitations/vector-limitations.md b/src/current/_includes/v25.4/known-limitations/vector-limitations.md
@@ -1,5 +1,4 @@
 - {% include {{ page.version.version }}/sql/vector-batch-inserts.md %}
-- Creating a vector index through a backfill disables mutations ([`INSERT`]({% link {{ page.version.version }}/insert.md %}), [`UPSERT`]({% link {{ page.version.version }}/upsert.md %}), [`UPDATE`]({% link {{ page.version.version }}/update.md %}), [`DELETE`]({% link {{ page.version.version }}/delete.md %})) on the table. [#144443](https://github.com/cockroachdb/cockroach/issues/144443)
 - `IMPORT INTO` is not supported on tables with vector indexes. You can import the vectors first and create the index after import is complete. [#145227](https://github.com/cockroachdb/cockroach/issues/145227)
 - The distance functions `vector_l1_ops`, `bit_hamming_ops`, and `bit_jaccard_ops` are not implemented. [#147839](https://github.com/cockroachdb/cockroach/issues/147839)
 - Index acceleration with filters is only supported if the filters match prefix columns. [#146145](https://github.com/cockroachdb/cockroach/issues/146145)
diff --git a/src/current/_includes/v25.4/known-limitations/view-limitations.md b/src/current/_includes/v25.4/known-limitations/view-limitations.md
@@ -0,0 +1 @@
+- The `security_invoker` attribute for views is not supported. Views always use the view definer's privileges when checking permissions. [#138918](https://github.com/cockroachdb/cockroach/issues/138918)
diff --git a/src/current/v25.4/known-limitations.md b/src/current/v25.4/known-limitations.md
@@ -1,5 +1,5 @@
 ---
-title: Known Limitations in CockroachDB v25.3
+title: Known Limitations in CockroachDB v25.4
 summary: Learn about newly identified limitations in CockroachDB as well as unresolved limitations identified in earlier releases.
 toc: true
 keywords: limitations, known limitations, unsupported features, PostgreSQL compatibility
@@ -12,25 +12,26 @@ docs_area: releases
 
 This section describes newly identified limitations in CockroachDB {{ page.version.version }}.
 
-### Row-level security filtering
+### View support
 
-{% include {{ page.version.version }}/known-limitations/rls-update-set-where-returning.md %}
+{% include {{ page.version.version }}/known-limitations/view-limitations.md %}
 
-### DistSQL
+### User-defined functions
 
-{% include {{ page.version.version }}/known-limitations/distsql-heterogeneous-endianness.md %}
+- User-defined functions are not currently supported in partial index predicates. [#155488](https://github.com/cockroachdb/cockroach/issues/155488)
+- Views cannot reference a UDF that contains mutation statements (`INSERT`, `UPDATE`, `UPSERT`, `DELETE`). [#151686](https://github.com/cockroachdb/cockroach/issues/151686)
 
-### Multi-region
+### Stored procedures
 
-{% include {{ page.version.version }}/known-limitations/enforce-home-region-limitations.md %}
+- Pausable portals are not supported with `CALL` statements for stored procedures. [#151529](https://github.com/cockroachdb/cockroach/issues/151529)
 
-### Geospatial
+### Mixed-isolation workloads
 
-{% include {{ page.version.version }}/known-limitations/geospatial-heterogeneous-architectures.md %}
+- Mixed-isolation-level workloads must enable foreign-key check locking for `SERIALIZABLE` transactions to avoid race conditions. [#151663](https://github.com/cockroachdb/cockroach/issues/151663)
 
-### `CITEXT`
+### Data domiciling
 
-{% include {{ page.version.version }}/known-limitations/citext-limitations.md %}
+- When using the `infer_rbr_region_col_using_constraint` option, inserting rows with `DEFAULT` for the region column uses the database's primary region instead of inferring the region from the parent table via foreign-key constraint. [#150783](https://github.com/cockroachdb/cockroach/issues/150783)
 
 ## Limitations from {{ previous_version }} and earlier
 
@@ -113,6 +114,10 @@ pq: unsupported binary operator: <collatedstring{en}> || <collatedstring{en}>
 
 [#10679](https://github.com/cockroachdb/cockroach/issues/10679)
 
+#### `LIKE` with `ESCAPE` performance
+
+{% include {{ page.version.version }}/known-limitations/like-escape-performance.md %}
+
 #### Current sequence value not checked when updating min/max value
 
 Altering the minimum or maximum value of a series does not check the current value of a series. This means that it is possible to silently set the maximum to a value less than, or a minimum value greater than, the current value. [#23719](https://github.com/cockroachdb/cockroach/issues/23719)
@@ -318,11 +323,11 @@ CockroachDB does not allow inverted indexes with a [`STORING` column]({% link {{
 
 {% include {{ page.version.version }}/known-limitations/expression-index-limitations.md %}
 
-#### Secondary regions and regional by row tables
+### Data types
 
-{% include {{page.version.version}}/known-limitations/secondary-regions-with-regional-by-row-tables.md %}
+#### `CITEXT` limitations
 
-### Data types
+{% include {{ page.version.version }}/known-limitations/citext-limitations.md %}
 
 #### Spatial support limitations
 
@@ -344,6 +349,8 @@ CockroachDB supports efficiently storing and querying [spatial data]({% link {{
 
 - {% include {{ page.version.version }}/known-limitations/srid-4326-limitations.md %}
 
+- {% include {{ page.version.version }}/known-limitations/geospatial-heterogeneous-architectures.md %}
+
 #### `OID` limitations
 
 Refer to [`OID` best practices]({% link {{ page.version.version }}/oid.md %}#best-practices).
@@ -370,9 +377,8 @@ Refer to [`OID` best practices]({% link {{ page.version.version }}/oid.md %}#bes
 
 #### Row-level security
 
-{% include {{ page.version.version }}/known-limitations/rls-values-on-conflict-do-nothing.md %}
-
-{% include {{ page.version.version }}/known-limitations/rls-visibility-issue.md %}
+- {% include {{ page.version.version }}/known-limitations/rls-values-on-conflict-do-nothing.md %}
+- {% include {{ page.version.version }}/known-limitations/rls-update-set-where-returning.md %}
 
 #### `GRANT`/`REVOKE` limitations
 
@@ -396,6 +402,10 @@ Every [`DELETE`]({% link {{ page.version.version }}/delete.md %}) or [`UPDATE`](
 
 {% include {{ page.version.version }}/known-limitations/data-domiciling-limitations.md %}
 
+#### DistSQL
+
+{% include {{ page.version.version }}/known-limitations/distsql-heterogeneous-endianness.md %}
+
 #### CockroachDB does not test for all connection failure scenarios
 
 CockroachDB servers rely on the network to report when a TCP connection fails. In most scenarios when a connection fails, the network immediately reports a connection failure, resulting in a `Connection refused` error.
@@ -732,3 +742,7 @@ UNION ALL SELECT * FROM t1 LEFT JOIN t2 ON st_contains(t1.geom, t2.geom) AND t2.
 #### Inverted join for `tsvector` and `tsquery` types is not supported
 
 CockroachDB cannot index-accelerate queries with `@@` predicates when both sides of the operator are variables. [#102731](https://github.com/cockroachdb/cockroach/issues/102731)
+
+#### `LIKE` operator with `ESCAPE` clause
+
+{% include {{ page.version.version }}/known-limitations/like-escape-performance.md %}
diff --git a/src/current/v25.4/row-level-security.md b/src/current/v25.4/row-level-security.md
@@ -528,12 +528,6 @@ For a demo showing how to combine row-level security with [Multi-region SQL]({%
 
 {% include_cached youtube.html video_id="ZG8RsfwMaa8" %}
 
-## Known limitations
-
-### Row-level security metadata leakage
-
-{% include {{ page.version.version }}/known-limitations/rls-visibility-issue.md %}
-
 ## See also
 
 + [`SHOW POLICIES`]({% link {{ page.version.version }}/show-policies.md %})
diff --git a/src/current/v25.4/views.md b/src/current/v25.4/views.md
@@ -684,6 +684,10 @@ For example:
 (3 rows)
 ~~~
 
+## Known limitations
+
+{% include {{ page.version.version }}/known-limitations/view-limitations.md %}
+
 ## See also
 
 - [Selection Queries]({% link {{ page.version.version }}/selection-queries.md %})

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,4 @@`
`1`	`1`	`- {% include {{ page.version.version }}/sql/vector-batch-inserts.md %}`
`2`		-- Creating a vector index through a backfill disables mutations ([`INSERT`]({% link {{ page.version.version }}/insert.md %}), [`UPSERT`]({% link {{ page.version.version }}/upsert.md %}), [`UPDATE`]({% link {{ page.version.version }}/update.md %}), [`DELETE`]({% link {{ page.version.version }}/delete.md %})) on the table. [#144443](https://github.com/cockroachdb/cockroach/issues/144443)
`3`	`2`	- `IMPORT INTO` is not supported on tables with vector indexes. You can import the vectors first and create the index after import is complete. [#145227](https://github.com/cockroachdb/cockroach/issues/145227)
`4`	`3`	- The distance functions `vector_l1_ops`, `bit_hamming_ops`, and `bit_jaccard_ops` are not implemented. [#147839](https://github.com/cockroachdb/cockroach/issues/147839)
`5`	`4`	`- Index acceleration with filters is only supported if the filters match prefix columns. [#146145](https://github.com/cockroachdb/cockroach/issues/146145)`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+`LIKE` queries with an `ESCAPE` clause cannot use index acceleration, which can result in significantly slower performance compared to standard `LIKE` queries. [#30192](https://github.com/cockroachdb/cockroach/issues/30192)