Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Fix handling of chunks with no dimension slices #6816

Merged
merged 1 commit into from
Apr 10, 2024

Conversation

jnidzwetzki
Copy link
Contributor

When a catalog corruption occurs, and a chunk does not contain any dimension slices, we crash in ts_dimension_slice_cmp(). This patch adds a proper check and errors out before the code path is called.

@jnidzwetzki jnidzwetzki self-assigned this Apr 10, 2024
@jnidzwetzki jnidzwetzki force-pushed the fix_no_slice_crash branch 2 times, most recently from 6409560 to 16930fb Compare April 10, 2024 10:29
When a catalog corruption occurs, and a chunk does not contain any
dimension slices, we crash in ts_dimension_slice_cmp(). This patch adds
a proper check and errors out before the code path is called.
Copy link

codecov bot commented Apr 10, 2024

Codecov Report

Attention: Patch coverage is 50.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 80.89%. Comparing base (59f50f2) to head (287e1be).
Report is 101 commits behind head on main.

Files Patch % Lines
src/chunk_scan.c 50.00% 0 Missing and 1 partial ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #6816      +/-   ##
==========================================
+ Coverage   80.06%   80.89%   +0.82%     
==========================================
  Files         190      194       +4     
  Lines       37181    36867     -314     
  Branches     9450     9656     +206     
==========================================
+ Hits        29770    29822      +52     
- Misses       2997     3185     +188     
+ Partials     4414     3860     -554     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

@jnidzwetzki jnidzwetzki marked this pull request as ready for review April 10, 2024 11:32
@jnidzwetzki jnidzwetzki changed the title Fix handling of chunks with no contraints Fix handling of chunks with no dimension slices Apr 10, 2024
Comment on lines +201 to +206
if (cube->num_slices == 0)
{
ereport(ERROR,
(errcode(ERRCODE_INTERNAL_ERROR),
errmsg("chunk %s has no dimension slices", get_rel_name(chunk->table_id))));
}
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggest to use Ensure for these cases that are not expected but we still need an internal check for release builds.

Suggested change
if (cube->num_slices == 0)
{
ereport(ERROR,
(errcode(ERRCODE_INTERNAL_ERROR),
errmsg("chunk %s has no dimension slices", get_rel_name(chunk->table_id))));
}
Ensure(cube->num_slices > 0, "chunk %s has no dimension slices", get_rel_name(chunk->table_id));

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

It was an Ensure initially. However, Ensure is replaced in debug builds by AssertMacro. So, we cash in debug builds and not error out. Therefore, I was not able to write a regression test for this case.

@jnidzwetzki jnidzwetzki merged commit c4ebdf6 into timescale:main Apr 10, 2024
44 of 45 checks passed
@jnidzwetzki jnidzwetzki deleted the fix_no_slice_crash branch April 10, 2024 20:59
@jnidzwetzki jnidzwetzki added bug force-auto-backport Automatically backport this PR or fix of this issue, even if it's not marked as "bug" labels Apr 10, 2024
@timescale-automation
Copy link

Automated backport to 2.14.x not done: cherry-pick failed.

Git status

HEAD detached at origin/2.14.x
You are currently cherry-picking commit c4ebdf6b4.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   .unreleased/fix_6816
	modified:   src/chunk_scan.c
	new file:   test/expected/catalog_corruption.out
	new file:   test/sql/catalog_corruption.sql

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   test/sql/CMakeLists.txt


Job log

@timescale-automation timescale-automation added the auto-backport-not-done Automated backport of this PR has failed non-retriably (e.g. conflicts) label Apr 11, 2024
fabriziomello added a commit to fabriziomello/timescaledb that referenced this pull request May 6, 2024
This release contains performance improvements and bug fixes since
the 2.14.2 release. We recommend that you upgrade at the next
available opportunity.

In addition, it includes these noteworthy features:
* Support `time_bucket` with `origin` and/or `offset` on Continuous Aggregate
* Compression improvements:
  - Improve expression pushdown
  - Add minmax sparse indexes when compressing columns with btree indexes
  - Make compression use the defaults functions
  - Vectorize filters in WHERE clause that contain text equality operators and LIKE expressions

**Deprecation warning**
* Starting on this release will not be possible to create Continuous Aggregate using `time_bucket_ng` anymore and it will be completely removed on the upcoming releases.
* Recommend users to [migrate their old Continuous Aggregate format to the new one](https://docs.timescale.com/use-timescale/latest/continuous-aggregates/migrate/) because it support will be completely removed in next releases prevent them to migrate.
* This is the last release supporting PostgreSQL 13.

**For on-premise users and this release only**, you will need to run [this SQL script](https://github.com/timescale/timescaledb-extras/blob/master/utils/2.15.X-fix_hypertable_foreign_keys.sql) after running `ALTER EXTENSION`. More details can be found in the pull request [timescale#6786](timescale#6797).

**Features**
* timescale#6382 Support for time_bucket with origin and offset in CAggs
* timescale#6696 Improve defaults for compression segment_by and order_by
* timescale#6705 Add sparse minmax indexes for compressed columns that have uncompressed btree indexes
* timescale#6754 Allow DROP CONSTRAINT on compressed hypertables
* timescale#6767 Add metadata table `_timestaledb_internal.bgw_job_stat_history` for tracking job execution history
* timescale#6798 Prevent usage of deprecated time_bucket_ng in CAgg definition
* timescale#6810 Add telemetry for access methods
* timescale#6811 Remove no longer relevant timescaledb.allow_install_without_preload GUC
* timescale#6837 Add migration path for CAggs using time_bucket_ng
* timescale#6865 Update the watermark when truncating a CAgg

**Bugfixes**
* timescale#6617 Fix error in show_chunks
* timescale#6621 Remove metadata when dropping chunks
* timescale#6677 Fix snapshot usage in CAgg invalidation scanner
* timescale#6698 Define meaning of 0 retries for jobs as no retries
* timescale#6717 Fix handling of compressed tables with primary or unique index in COPY path
* timescale#6726 Fix constify cagg_watermark using window function when querying a CAgg
* timescale#6729 Fix NULL start value handling in CAgg refresh
* timescale#6732 Fix CAgg migration with custom timezone / date format settings
* timescale#6752 Remove custom autovacuum setting from compressed chunks
* timescale#6770 Fix plantime chunk exclusion for OSM chunk
* timescale#6789 Fix deletes with subqueries and compression
* timescale#6796 Fix a crash involving a view on a hypertable
* timescale#6797 Fix foreign key constraint handling on compressed hypertables
* timescale#6816 Fix handling of chunks with no contraints
* timescale#6820 Fix a crash when the ts_hypertable_insert_blocker was called directly
* timescale#6849 Use non-orderby compressed metadata in compressed DML
* timescale#6867 Clean up compression settings when deleting compressed cagg
* timescale#6869 Fix compressed DML with constraints of form value OP column
* timescale#6870 Fix bool expression pushdown for queries on compressed chunks

**Thanks**
* @brasic for reporting a crash when the ts_hypertable_insert_blocker was called directly
* @bvanelli for reporting an issue with the jobs retry count
* @djzurawsk For reporting error when dropping chunks
* @Dzuzepppe for reporting an issue with DELETEs using subquery on compressed chunk working incorrectly.
* @hongquan For reporting a 'timestamp out of range' error during CAgg migrations
* @kevcenteno for reporting an issue with the show_chunks API showing incorrect output when 'created_before/created_after' was used with time-partitioned columns.
* @mahipv For starting working on the job history PR
* @rovo89 For reporting constify cagg_watermark not working using window function when querying a CAgg
fabriziomello added a commit to fabriziomello/timescaledb that referenced this pull request May 6, 2024
This release contains performance improvements and bug fixes since
the 2.14.2 release. We recommend that you upgrade at the next
available opportunity.

In addition, it includes these noteworthy features:
* Support `time_bucket` with `origin` and/or `offset` on Continuous Aggregate
* Compression improvements:
  - Improve expression pushdown
  - Add minmax sparse indexes when compressing columns with btree indexes
  - Make compression use the defaults functions
  - Vectorize filters in WHERE clause that contain text equality operators and LIKE expressions

**Deprecation warning**
* Starting on this release will not be possible to create Continuous Aggregate using `time_bucket_ng` anymore and it will be completely removed on the upcoming releases.
* Recommend users to [migrate their old Continuous Aggregate format to the new one](https://docs.timescale.com/use-timescale/latest/continuous-aggregates/migrate/) because it support will be completely removed in next releases prevent them to migrate.
* This is the last release supporting PostgreSQL 13.

**For on-premise users and this release only**, you will need to run [this SQL script](https://github.com/timescale/timescaledb-extras/blob/master/utils/2.15.X-fix_hypertable_foreign_keys.sql) after running `ALTER EXTENSION`. More details can be found in the pull request [timescale#6786](timescale#6797).

**Features**
* timescale#6382 Support for time_bucket with origin and offset in CAggs
* timescale#6696 Improve defaults for compression segment_by and order_by
* timescale#6705 Add sparse minmax indexes for compressed columns that have uncompressed btree indexes
* timescale#6754 Allow DROP CONSTRAINT on compressed hypertables
* timescale#6767 Add metadata table `_timestaledb_internal.bgw_job_stat_history` for tracking job execution history
* timescale#6798 Prevent usage of deprecated time_bucket_ng in CAgg definition
* timescale#6810 Add telemetry for access methods
* timescale#6811 Remove no longer relevant timescaledb.allow_install_without_preload GUC
* timescale#6837 Add migration path for CAggs using time_bucket_ng
* timescale#6865 Update the watermark when truncating a CAgg

**Bugfixes**
* timescale#6617 Fix error in show_chunks
* timescale#6621 Remove metadata when dropping chunks
* timescale#6677 Fix snapshot usage in CAgg invalidation scanner
* timescale#6698 Define meaning of 0 retries for jobs as no retries
* timescale#6717 Fix handling of compressed tables with primary or unique index in COPY path
* timescale#6726 Fix constify cagg_watermark using window function when querying a CAgg
* timescale#6729 Fix NULL start value handling in CAgg refresh
* timescale#6732 Fix CAgg migration with custom timezone / date format settings
* timescale#6752 Remove custom autovacuum setting from compressed chunks
* timescale#6770 Fix plantime chunk exclusion for OSM chunk
* timescale#6789 Fix deletes with subqueries and compression
* timescale#6796 Fix a crash involving a view on a hypertable
* timescale#6797 Fix foreign key constraint handling on compressed hypertables
* timescale#6816 Fix handling of chunks with no contraints
* timescale#6820 Fix a crash when the ts_hypertable_insert_blocker was called directly
* timescale#6849 Use non-orderby compressed metadata in compressed DML
* timescale#6867 Clean up compression settings when deleting compressed cagg
* timescale#6869 Fix compressed DML with constraints of form value OP column
* timescale#6870 Fix bool expression pushdown for queries on compressed chunks

**Thanks**
* @brasic for reporting a crash when the ts_hypertable_insert_blocker was called directly
* @bvanelli for reporting an issue with the jobs retry count
* @djzurawsk For reporting error when dropping chunks
* @Dzuzepppe for reporting an issue with DELETEs using subquery on compressed chunk working incorrectly.
* @hongquan For reporting a 'timestamp out of range' error during CAgg migrations
* @kevcenteno for reporting an issue with the show_chunks API showing incorrect output when 'created_before/created_after' was used with time-partitioned columns.
* @mahipv For starting working on the job history PR
* @rovo89 For reporting constify cagg_watermark not working using window function when querying a CAgg
@fabriziomello fabriziomello mentioned this pull request May 6, 2024
fabriziomello added a commit to fabriziomello/timescaledb that referenced this pull request May 6, 2024
This release contains performance improvements and bug fixes since
the 2.14.2 release. We recommend that you upgrade at the next
available opportunity.

In addition, it includes these noteworthy features:
* Support `time_bucket` with `origin` and/or `offset` on Continuous Aggregate
* Compression improvements:
  - Improve expression pushdown
  - Add minmax sparse indexes when compressing columns with btree indexes
  - Make compression use the defaults functions
  - Vectorize filters in WHERE clause that contain text equality operators and LIKE expressions

**Deprecation warning**
* Starting on this release will not be possible to create Continuous Aggregate using `time_bucket_ng` anymore and it will be completely removed on the upcoming releases.
* Recommend users to [migrate their old Continuous Aggregate format to the new one](https://docs.timescale.com/use-timescale/latest/continuous-aggregates/migrate/) because it support will be completely removed in next releases prevent them to migrate.
* This is the last release supporting PostgreSQL 13.

**For on-premise users and this release only**, you will need to run [this SQL script](https://github.com/timescale/timescaledb-extras/blob/master/utils/2.15.X-fix_hypertable_foreign_keys.sql) after running `ALTER EXTENSION`. More details can be found in the pull request [timescale#6786](timescale#6797).

**Features**
* timescale#6382 Support for time_bucket with origin and offset in CAggs
* timescale#6696 Improve defaults for compression segment_by and order_by
* timescale#6705 Add sparse minmax indexes for compressed columns that have uncompressed btree indexes
* timescale#6754 Allow DROP CONSTRAINT on compressed hypertables
* timescale#6767 Add metadata table `_timestaledb_internal.bgw_job_stat_history` for tracking job execution history
* timescale#6798 Prevent usage of deprecated time_bucket_ng in CAgg definition
* timescale#6810 Add telemetry for access methods
* timescale#6811 Remove no longer relevant timescaledb.allow_install_without_preload GUC
* timescale#6837 Add migration path for CAggs using time_bucket_ng
* timescale#6865 Update the watermark when truncating a CAgg

**Bugfixes**
* timescale#6617 Fix error in show_chunks
* timescale#6621 Remove metadata when dropping chunks
* timescale#6677 Fix snapshot usage in CAgg invalidation scanner
* timescale#6698 Define meaning of 0 retries for jobs as no retries
* timescale#6717 Fix handling of compressed tables with primary or unique index in COPY path
* timescale#6726 Fix constify cagg_watermark using window function when querying a CAgg
* timescale#6729 Fix NULL start value handling in CAgg refresh
* timescale#6732 Fix CAgg migration with custom timezone / date format settings
* timescale#6752 Remove custom autovacuum setting from compressed chunks
* timescale#6770 Fix plantime chunk exclusion for OSM chunk
* timescale#6789 Fix deletes with subqueries and compression
* timescale#6796 Fix a crash involving a view on a hypertable
* timescale#6797 Fix foreign key constraint handling on compressed hypertables
* timescale#6816 Fix handling of chunks with no contraints
* timescale#6820 Fix a crash when the ts_hypertable_insert_blocker was called directly
* timescale#6849 Use non-orderby compressed metadata in compressed DML
* timescale#6867 Clean up compression settings when deleting compressed cagg
* timescale#6869 Fix compressed DML with constraints of form value OP column
* timescale#6870 Fix bool expression pushdown for queries on compressed chunks

**Thanks**
* @brasic for reporting a crash when the ts_hypertable_insert_blocker was called directly
* @bvanelli for reporting an issue with the jobs retry count
* @djzurawsk For reporting error when dropping chunks
* @Dzuzepppe for reporting an issue with DELETEs using subquery on compressed chunk working incorrectly.
* @hongquan For reporting a 'timestamp out of range' error during CAgg migrations
* @kevcenteno for reporting an issue with the show_chunks API showing incorrect output when 'created_before/created_after' was used with time-partitioned columns.
* @mahipv For starting working on the job history PR
* @rovo89 For reporting constify cagg_watermark not working using window function when querying a CAgg
fabriziomello added a commit that referenced this pull request May 6, 2024
This release contains performance improvements and bug fixes since
the 2.14.2 release. We recommend that you upgrade at the next
available opportunity.

In addition, it includes these noteworthy features:
* Support `time_bucket` with `origin` and/or `offset` on Continuous Aggregate
* Compression improvements:
  - Improve expression pushdown
  - Add minmax sparse indexes when compressing columns with btree indexes
  - Make compression use the defaults functions
  - Vectorize filters in WHERE clause that contain text equality operators and LIKE expressions

**Deprecation warning**
* Starting on this release will not be possible to create Continuous Aggregate using `time_bucket_ng` anymore and it will be completely removed on the upcoming releases.
* Recommend users to [migrate their old Continuous Aggregate format to the new one](https://docs.timescale.com/use-timescale/latest/continuous-aggregates/migrate/) because it support will be completely removed in next releases prevent them to migrate.
* This is the last release supporting PostgreSQL 13.

**For on-premise users and this release only**, you will need to run [this SQL script](https://github.com/timescale/timescaledb-extras/blob/master/utils/2.15.X-fix_hypertable_foreign_keys.sql) after running `ALTER EXTENSION`. More details can be found in the pull request [#6786](#6797).

**Features**
* #6382 Support for time_bucket with origin and offset in CAggs
* #6696 Improve defaults for compression segment_by and order_by
* #6705 Add sparse minmax indexes for compressed columns that have uncompressed btree indexes
* #6754 Allow DROP CONSTRAINT on compressed hypertables
* #6767 Add metadata table `_timestaledb_internal.bgw_job_stat_history` for tracking job execution history
* #6798 Prevent usage of deprecated time_bucket_ng in CAgg definition
* #6810 Add telemetry for access methods
* #6811 Remove no longer relevant timescaledb.allow_install_without_preload GUC
* #6837 Add migration path for CAggs using time_bucket_ng
* #6865 Update the watermark when truncating a CAgg

**Bugfixes**
* #6617 Fix error in show_chunks
* #6621 Remove metadata when dropping chunks
* #6677 Fix snapshot usage in CAgg invalidation scanner
* #6698 Define meaning of 0 retries for jobs as no retries
* #6717 Fix handling of compressed tables with primary or unique index in COPY path
* #6726 Fix constify cagg_watermark using window function when querying a CAgg
* #6729 Fix NULL start value handling in CAgg refresh
* #6732 Fix CAgg migration with custom timezone / date format settings
* #6752 Remove custom autovacuum setting from compressed chunks
* #6770 Fix plantime chunk exclusion for OSM chunk
* #6789 Fix deletes with subqueries and compression
* #6796 Fix a crash involving a view on a hypertable
* #6797 Fix foreign key constraint handling on compressed hypertables
* #6816 Fix handling of chunks with no contraints
* #6820 Fix a crash when the ts_hypertable_insert_blocker was called directly
* #6849 Use non-orderby compressed metadata in compressed DML
* #6867 Clean up compression settings when deleting compressed cagg
* #6869 Fix compressed DML with constraints of form value OP column
* #6870 Fix bool expression pushdown for queries on compressed chunks

**Thanks**
* @brasic for reporting a crash when the ts_hypertable_insert_blocker was called directly
* @bvanelli for reporting an issue with the jobs retry count
* @djzurawsk For reporting error when dropping chunks
* @Dzuzepppe for reporting an issue with DELETEs using subquery on compressed chunk working incorrectly.
* @hongquan For reporting a 'timestamp out of range' error during CAgg migrations
* @kevcenteno for reporting an issue with the show_chunks API showing incorrect output when 'created_before/created_after' was used with time-partitioned columns.
* @mahipv For starting working on the job history PR
* @rovo89 For reporting constify cagg_watermark not working using window function when querying a CAgg
fabriziomello added a commit to fabriziomello/timescaledb that referenced this pull request May 6, 2024
This release contains performance improvements and bug fixes since
the 2.14.2 release. We recommend that you upgrade at the next
available opportunity.

In addition, it includes these noteworthy features:
* Support `time_bucket` with `origin` and/or `offset` on Continuous Aggregate
* Compression improvements:
  - Improve expression pushdown
  - Add minmax sparse indexes when compressing columns with btree indexes
  - Make compression use the defaults functions
  - Vectorize filters in WHERE clause that contain text equality operators and LIKE expressions

**Deprecation warning**
* Starting on this release will not be possible to create Continuous Aggregate using `time_bucket_ng` anymore and it will be completely removed on the upcoming releases.
* Recommend users to [migrate their old Continuous Aggregate format to the new one](https://docs.timescale.com/use-timescale/latest/continuous-aggregates/migrate/) because it support will be completely removed in next releases prevent them to migrate.
* This is the last release supporting PostgreSQL 13.

**For on-premise users and this release only**, you will need to run [this SQL script](https://github.com/timescale/timescaledb-extras/blob/master/utils/2.15.X-fix_hypertable_foreign_keys.sql) after running `ALTER EXTENSION`. More details can be found in the pull request [timescale#6786](timescale#6797).

**Features**
* timescale#6382 Support for time_bucket with origin and offset in CAggs
* timescale#6696 Improve defaults for compression segment_by and order_by
* timescale#6705 Add sparse minmax indexes for compressed columns that have uncompressed btree indexes
* timescale#6754 Allow DROP CONSTRAINT on compressed hypertables
* timescale#6767 Add metadata table `_timestaledb_internal.bgw_job_stat_history` for tracking job execution history
* timescale#6798 Prevent usage of deprecated time_bucket_ng in CAgg definition
* timescale#6810 Add telemetry for access methods
* timescale#6811 Remove no longer relevant timescaledb.allow_install_without_preload GUC
* timescale#6837 Add migration path for CAggs using time_bucket_ng
* timescale#6865 Update the watermark when truncating a CAgg

**Bugfixes**
* timescale#6617 Fix error in show_chunks
* timescale#6621 Remove metadata when dropping chunks
* timescale#6677 Fix snapshot usage in CAgg invalidation scanner
* timescale#6698 Define meaning of 0 retries for jobs as no retries
* timescale#6717 Fix handling of compressed tables with primary or unique index in COPY path
* timescale#6726 Fix constify cagg_watermark using window function when querying a CAgg
* timescale#6729 Fix NULL start value handling in CAgg refresh
* timescale#6732 Fix CAgg migration with custom timezone / date format settings
* timescale#6752 Remove custom autovacuum setting from compressed chunks
* timescale#6770 Fix plantime chunk exclusion for OSM chunk
* timescale#6789 Fix deletes with subqueries and compression
* timescale#6796 Fix a crash involving a view on a hypertable
* timescale#6797 Fix foreign key constraint handling on compressed hypertables
* timescale#6816 Fix handling of chunks with no contraints
* timescale#6820 Fix a crash when the ts_hypertable_insert_blocker was called directly
* timescale#6849 Use non-orderby compressed metadata in compressed DML
* timescale#6867 Clean up compression settings when deleting compressed cagg
* timescale#6869 Fix compressed DML with constraints of form value OP column
* timescale#6870 Fix bool expression pushdown for queries on compressed chunks

**Thanks**
* @brasic for reporting a crash when the ts_hypertable_insert_blocker was called directly
* @bvanelli for reporting an issue with the jobs retry count
* @djzurawsk For reporting error when dropping chunks
* @Dzuzepppe for reporting an issue with DELETEs using subquery on compressed chunk working incorrectly.
* @hongquan For reporting a 'timestamp out of range' error during CAgg migrations
* @kevcenteno for reporting an issue with the show_chunks API showing incorrect output when 'created_before/created_after' was used with time-partitioned columns.
* @mahipv For starting working on the job history PR
* @rovo89 For reporting constify cagg_watermark not working using window function when querying a CAgg
fabriziomello added a commit that referenced this pull request May 7, 2024
This release contains performance improvements and bug fixes since
the 2.14.2 release. We recommend that you upgrade at the next
available opportunity.

In addition, it includes these noteworthy features:
* Support `time_bucket` with `origin` and/or `offset` on Continuous Aggregate
* Compression improvements:
  - Improve expression pushdown
  - Add minmax sparse indexes when compressing columns with btree indexes
  - Make compression use the defaults functions
  - Vectorize filters in WHERE clause that contain text equality operators and LIKE expressions

**Deprecation warning**
* Starting on this release will not be possible to create Continuous Aggregate using `time_bucket_ng` anymore and it will be completely removed on the upcoming releases.
* Recommend users to [migrate their old Continuous Aggregate format to the new one](https://docs.timescale.com/use-timescale/latest/continuous-aggregates/migrate/) because it support will be completely removed in next releases prevent them to migrate.
* This is the last release supporting PostgreSQL 13.

**For on-premise users and this release only**, you will need to run [this SQL script](https://github.com/timescale/timescaledb-extras/blob/master/utils/2.15.X-fix_hypertable_foreign_keys.sql) after running `ALTER EXTENSION`. More details can be found in the pull request [#6786](#6797).

**Features**
* #6382 Support for time_bucket with origin and offset in CAggs
* #6696 Improve defaults for compression segment_by and order_by
* #6705 Add sparse minmax indexes for compressed columns that have uncompressed btree indexes
* #6754 Allow DROP CONSTRAINT on compressed hypertables
* #6767 Add metadata table `_timestaledb_internal.bgw_job_stat_history` for tracking job execution history
* #6798 Prevent usage of deprecated time_bucket_ng in CAgg definition
* #6810 Add telemetry for access methods
* #6811 Remove no longer relevant timescaledb.allow_install_without_preload GUC
* #6837 Add migration path for CAggs using time_bucket_ng
* #6865 Update the watermark when truncating a CAgg

**Bugfixes**
* #6617 Fix error in show_chunks
* #6621 Remove metadata when dropping chunks
* #6677 Fix snapshot usage in CAgg invalidation scanner
* #6698 Define meaning of 0 retries for jobs as no retries
* #6717 Fix handling of compressed tables with primary or unique index in COPY path
* #6726 Fix constify cagg_watermark using window function when querying a CAgg
* #6729 Fix NULL start value handling in CAgg refresh
* #6732 Fix CAgg migration with custom timezone / date format settings
* #6752 Remove custom autovacuum setting from compressed chunks
* #6770 Fix plantime chunk exclusion for OSM chunk
* #6789 Fix deletes with subqueries and compression
* #6796 Fix a crash involving a view on a hypertable
* #6797 Fix foreign key constraint handling on compressed hypertables
* #6816 Fix handling of chunks with no contraints
* #6820 Fix a crash when the ts_hypertable_insert_blocker was called directly
* #6849 Use non-orderby compressed metadata in compressed DML
* #6867 Clean up compression settings when deleting compressed cagg
* #6869 Fix compressed DML with constraints of form value OP column
* #6870 Fix bool expression pushdown for queries on compressed chunks

**Thanks**
* @brasic for reporting a crash when the ts_hypertable_insert_blocker was called directly
* @bvanelli for reporting an issue with the jobs retry count
* @djzurawsk For reporting error when dropping chunks
* @Dzuzepppe for reporting an issue with DELETEs using subquery on compressed chunk working incorrectly.
* @hongquan For reporting a 'timestamp out of range' error during CAgg migrations
* @kevcenteno for reporting an issue with the show_chunks API showing incorrect output when 'created_before/created_after' was used with time-partitioned columns.
* @mahipv For starting working on the job history PR
* @rovo89 For reporting constify cagg_watermark not working using window function when querying a CAgg
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
auto-backport-not-done Automated backport of this PR has failed non-retriably (e.g. conflicts) bug force-auto-backport Automatically backport this PR or fix of this issue, even if it's not marked as "bug"
Projects
None yet
Development

Successfully merging this pull request may close these issues.

4 participants