Add support for transition tables #6901
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jamessewell
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May 30, 2024
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In the pg source there is explicit comment blocking transition tables for partitioned tables did you investigate the reason for this? I think you might have to do attribute mapping if we decide to allow this. This also needs rebase since PG13 support has been removed. |
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Note: It is possible to add a trigger on an inherited table, but that might require an attribute re-mapping so not sure we should support it. The situation where this can be a problem is if we modify the parent table (by adding and removing attributes) and then add new inherited tables they will have a different set of attribute numbers, which might require a re-mapping of the attributes. |
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@antekresic, @erimatnor: please review this pull request.
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Support for row triggers with transition tables on chunks or hypertables are blocked. |
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Note: I replaced the existing commit with a new one so I should not review the PR. |
akuzm
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Dec 5, 2024
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pallavisontakke
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Dec 13, 2024
This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901 Add hypertable support for transition tables * timescale#7104 Hypercore table access method * timescale#7271 Push down ORDER BY in real time continuous aggregate queries * timescale#7295: Support ALTER TABLE SET ACCESS METHOD on hypertable. * timescale#7390 Disable custom hashagg planner code * timescale#7411 Change parameter name to enable Hypercore TAM * timescale#7412 Add GUC for hypercore_use_access_method default * timescale#7413: Add GUC for segmentwise recompression. * timescale#7443 Add Hypercore function and view aliases * timescale#7455: Support DROP NOT NULL on compressed hypertables * timescale#7486 Prevent building against postgres versions with broken ABI **Bugfixes** * timescale#7378 Remove obsolete job referencing policy_job_error_retention * timescale#7409 Update bgw job table when altering procedure * timescale#7410 "aggregated compressed column not found" error on aggregation query. * timescale#7426 Fix datetime parsing error in chunk constraint creation * timescale#7432 Verify that heap tuple is valid before using * timescale#7434 Fixes segfault when internally set the replica identity for a given chunk * timescale#7488 Emit error for transition table trigger on chunks * timescale#7514 Fix error: invalid child of chunk append **Thanks** * @bharrisau for reporting the segfault when creating chunks * @pgloader for reporting an issue an internal background job * @uasiddiqi for reporting the "aggregated compressed column not found" error.
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Dec 16, 2024
This release contains performance improvements and bug fixes since the 2.18.0 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901 Add hypertable support for transition tables * timescale#7104 Hypercore table access method * timescale#7271 Push down ORDER BY in real time continuous aggregate queries * timescale#7295: Support ALTER TABLE SET ACCESS METHOD on hypertable. * timescale#7390 Disable custom hashagg planner code * timescale#7411 Change parameter name to enable Hypercore TAM * timescale#7412 Add GUC for hypercore_use_access_method default * timescale#7413: Add GUC for segmentwise recompression. * timescale#7443 Add Hypercore function and view aliases * timescale#7455: Support DROP NOT NULL on compressed hypertables * timescale#7486 Prevent building against postgres versions with broken ABI **Bugfixes** * timescale#7378 Remove obsolete job referencing policy_job_error_retention * timescale#7409 Update bgw job table when altering procedure * timescale#7410 "aggregated compressed column not found" error on aggregation query. * timescale#7426 Fix datetime parsing error in chunk constraint creation * timescale#7432 Verify that heap tuple is valid before using * timescale#7434 Fixes segfault when internally set the replica identity for a given chunk * timescale#7488 Emit error for transition table trigger on chunks * timescale#7514 Fix error: invalid child of chunk append **Thanks** * @bharrisau for reporting the segfault when creating chunks * @pgloader for reporting an issue an internal background job * @uasiddiqi for reporting the "aggregated compressed column not found" error.
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Dec 16, 2024
This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901 Add hypertable support for transition tables * timescale#7104 Hypercore table access method * timescale#7271 Push down ORDER BY in real time continuous aggregate queries * timescale#7295: Support ALTER TABLE SET ACCESS METHOD on hypertable. * timescale#7390 Disable custom hashagg planner code * timescale#7411 Change parameter name to enable Hypercore TAM * timescale#7412 Add GUC for hypercore_use_access_method default * timescale#7413: Add GUC for segmentwise recompression. * timescale#7443 Add Hypercore function and view aliases * timescale#7455: Support DROP NOT NULL on compressed hypertables * timescale#7486 Prevent building against postgres versions with broken ABI **Bugfixes** * timescale#7378 Remove obsolete job referencing policy_job_error_retention * timescale#7409 Update bgw job table when altering procedure * timescale#7410 "aggregated compressed column not found" error on aggregation query. * timescale#7426 Fix datetime parsing error in chunk constraint creation * timescale#7432 Verify that heap tuple is valid before using * timescale#7434 Fixes segfault when internally set the replica identity for a given chunk * timescale#7488 Emit error for transition table trigger on chunks * timescale#7514 Fix error: invalid child of chunk append **Thanks** * @bharrisau for reporting the segfault when creating chunks * @pgloader for reporting an issue an internal background job * @uasiddiqi for reporting the "aggregated compressed column not found" error.
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This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901 Add hypertable support for transition tables * timescale#7104 Hypercore table access method * timescale#7271 Push down ORDER BY in real time continuous aggregate queries * timescale#7295: Support ALTER TABLE SET ACCESS METHOD on hypertable. * timescale#7390 Disable custom hashagg planner code * timescale#7411 Change parameter name to enable Hypercore TAM * timescale#7412 Add GUC for hypercore_use_access_method default * timescale#7413: Add GUC for segmentwise recompression. * timescale#7443 Add Hypercore function and view aliases * timescale#7455: Support DROP NOT NULL on compressed hypertables * timescale#7486 Prevent building against postgres versions with broken ABI **Bugfixes** * timescale#7378 Remove obsolete job referencing policy_job_error_retention * timescale#7409 Update bgw job table when altering procedure * timescale#7410 "aggregated compressed column not found" error on aggregation query. * timescale#7426 Fix datetime parsing error in chunk constraint creation * timescale#7432 Verify that heap tuple is valid before using * timescale#7434 Fixes segfault when internally set the replica identity for a given chunk * timescale#7488 Emit error for transition table trigger on chunks * timescale#7514 Fix error: invalid child of chunk append **Thanks** * @bharrisau for reporting the segfault when creating chunks * @pgloader for reporting an issue an internal background job * @uasiddiqi for reporting the "aggregated compressed column not found" error.
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This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901 Add hypertable support for transition tables * timescale#7104 Hypercore table access method * timescale#7271 Push down ORDER BY in real time continuous aggregate queries * timescale#7295: Support ALTER TABLE SET ACCESS METHOD on hypertable. * timescale#7390 Disable custom hashagg planner code * timescale#7411 Change parameter name to enable Hypercore TAM * timescale#7412 Add GUC for hypercore_use_access_method default * timescale#7413: Add GUC for segmentwise recompression. * timescale#7443 Add Hypercore function and view aliases * timescale#7455: Support DROP NOT NULL on compressed hypertables * timescale#7486 Prevent building against postgres versions with broken ABI **Bugfixes** * timescale#7378 Remove obsolete job referencing policy_job_error_retention * timescale#7409 Update bgw job table when altering procedure * timescale#7410 "aggregated compressed column not found" error on aggregation query. * timescale#7426 Fix datetime parsing error in chunk constraint creation * timescale#7432 Verify that heap tuple is valid before using * timescale#7434 Fixes segfault when internally set the replica identity for a given chunk * timescale#7488 Emit error for transition table trigger on chunks * timescale#7514 Fix error: invalid child of chunk append **Thanks** * @bharrisau for reporting the segfault when creating chunks * @pgloader for reporting an issue an internal background job * @uasiddiqi for reporting the "aggregated compressed column not found" error.
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Dec 17, 2024
This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901 Add hypertable support for transition tables * timescale#7104 Hypercore table access method * timescale#7271 Push down ORDER BY in real time continuous aggregate queries * timescale#7295: Support ALTER TABLE SET ACCESS METHOD on hypertable. * timescale#7390 Disable custom hashagg planner code * timescale#7411 Change parameter name to enable Hypercore TAM * timescale#7412 Add GUC for hypercore_use_access_method default * timescale#7413: Add GUC for segmentwise recompression. * timescale#7443 Add Hypercore function and view aliases * timescale#7455: Support DROP NOT NULL on compressed hypertables * timescale#7458 Support vecorized aggregation with aggregate FILTER clauses that are also vectorizable * timescale#7486 Prevent building against postgres versions with broken ABI **Bugfixes** * timescale#7378 Remove obsolete job referencing policy_job_error_retention * timescale#7409 Update bgw job table when altering procedure * timescale#7410 "aggregated compressed column not found" error on aggregation query. * timescale#7426 Fix datetime parsing error in chunk constraint creation * timescale#7432 Verify that heap tuple is valid before using * timescale#7434 Fixes segfault when internally set the replica identity for a given chunk * timescale#7488 Emit error for transition table trigger on chunks * timescale#7514 Fix error: invalid child of chunk append **Thanks** * @bharrisau for reporting the segfault when creating chunks * @pgloader for reporting an issue an internal background job * @uasiddiqi for reporting the "aggregated compressed column not found" error.
pallavisontakke
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This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901: Add hypertable support for transition tables. * timescale#7104: Hypercore table access method. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column * timescale#7390: Disable custom `hashagg` planner code. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7412: Add GUC for `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. * timescale#7433 Add support for merging chunks * timescale#7436 Add index creation on orderby columns * timescale#7443: Add hypercore function and view aliases. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7458: Support vecorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7486: Prevent building against postgres versions with broken ABI. * timescale#7521 Add optional `force` argument to `refresh_continuous_aggregate` * timescale#7528 Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565 Add hint when hypertable creation fails * timescale#7587 Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fixes the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517 Fixes performance regression on `cagg_migrate` procedure * timescale#7527 Restart scheduler on error * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566 Improve transaction check in CAgg refresh * timescale#7584 Fix NaN-handling for vectorized aggregation **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @k-rus for suggesting the improvement * @pgloader for reporting the issue in an internal background job. * @staticlibs for sending PR to improve transaction check in CAgg refresh * @uasiddiqi for reporting the `aggregated compressed column not found` error.
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This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * timescale#6901: Add hypertable support for transition tables. * timescale#7104: Hypercore table access method. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column * timescale#7390: Disable custom `hashagg` planner code. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7412: Add GUC for `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. * timescale#7433 Add support for merging chunks * timescale#7436 Add index creation on orderby columns * timescale#7443: Add hypercore function and view aliases. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7458: Support vecorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7486: Prevent building against postgres versions with broken ABI. * timescale#7521 Add optional `force` argument to `refresh_continuous_aggregate` * timescale#7528 Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565 Add hint when hypertable creation fails * timescale#7587 Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fixes the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517 Fixes performance regression on `cagg_migrate` procedure * timescale#7527 Restart scheduler on error * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566 Improve transaction check in CAgg refresh * timescale#7584 Fix NaN-handling for vectorized aggregation **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @k-rus for suggesting the improvement * @pgloader for reporting the issue in an internal background job. * @staticlibs for sending PR to improve transaction check in CAgg refresh * @uasiddiqi for reporting the `aggregated compressed column not found` error.
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svenklemm
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Jan 23, 2025
This release contains performance improvements and bug fixes since the 2.17.2 release. We recommend that you upgrade at the next available opportunity. **Features** * #6901: Add hypertable support for transition tables. * #7104: Hypercore table access method. * #7271: Push down `order by` in real-time continuous aggregate queries. * #7295: Support `alter table set access method` on hypertable. * #7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column * #7390: Disable custom `hashagg` planner code. * #7411: Change parameter name to enable hypercore table access method. * #7412: Add GUC for `hypercore_use_access_method` default. * #7413: Add GUC for segmentwise recompression. * #7433 Add support for merging chunks * #7436 Add index creation on orderby columns * #7443: Add hypercore function and view aliases. * #7455: Support `drop not null` on compressed hypertables. * #7458: Support vecorized aggregation with aggregate `filter` clauses that are also vectorizable. * #7482: Optimize recompression of partially compressed chunks. * #7486: Prevent building against postgres versions with broken ABI. * #7521 Add optional `force` argument to `refresh_continuous_aggregate` * #7528 Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * #7565 Add hint when hypertable creation fails * #7587 Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API **Bugfixes** * #7378: Remove obsolete job referencing `policy_job_error_retention`. * #7409: Update `bgw_job` table when altering procedure. * #7410: Fix the `aggregated compressed column not found` error on aggregation query. * #7426: Fix `datetime` parsing error in chunk constraint creation. * #7432: Verify that the heap tuple is valid before using. * #7434: Fixes the segfault when internally setting the replica identity for a given chunk. * #7488: Emit error for transition table trigger on chunks. * #7514: Fix the error: `invalid child of chunk append`. * #7517 Fixes performance regression on `cagg_migrate` procedure * #7527 Restart scheduler on error * #7557: Fix null handling for in-memory tuple filtering. * #7566 Improve transaction check in CAgg refresh * #7584 Fix NaN-handling for vectorized aggregation **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @k-rus for suggesting the improvement * @pgloader for reporting the issue in an internal background job. * @staticlibs for sending PR to improve transaction check in CAgg refresh * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
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Jan 23, 2025
This release improves `group by` performance of compressing data and filters, introduces the ability to add secondary indexes, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in this release** * TAM * Significant performance improvements for aggregations using a `group by` with one column and/or using a filter clause. SIMD * Transition tables **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. **Features** * #7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * #7104: Hypercore table access method. * #6901: Add hypertable support for transition tables. * #7482: Optimize recompression of partially compressed chunks. * #7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * #7433: Add support for merging chunks. * #7271: Push down `order by` in real-time continuous aggregate queries. * #7455: Support `drop not null` on compressed hypertables. * #7295: Support `alter table set access method` on hypertable. * #7411: Change parameter name to enable hypercore table access method. * #7436: Add index creation on `order by` columns. * #7443: Add hypercore function and view aliases. * #7521: Add optional `force` argument to `refresh_continuous_aggregate`. * #7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * #7565: Add hint when hypertable creation fails. * #7390: Disable custom `hashagg` planner code. * #7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * #7486: Prevent building against PostgreSQL versions with broken ABI. * #7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * #7413: Add GUC for segmentwise recompression. **Bugfixes** * #7378: Remove obsolete job referencing `policy_job_error_retention`. * #7409: Update `bgw_job` table when altering procedure. * #7410: Fix the `aggregated compressed column not found` error on aggregation query. * #7426: Fix `datetime` parsing error in chunk constraint creation. * #7432: Verify that the heap tuple is valid before using. * #7434: Fix the segfault when internally setting the replica identity for a given chunk. * #7488: Emit error for transition table trigger on chunks. * #7514: Fix the error: `invalid child of chunk append`. * #7517: Fix the performance regression on the `cagg_migrate` procedure. * #7527: Restart scheduler on error. * #7557: Fix null handling for in-memory tuple filtering. * #7566: Improve transaction check in CAGG refresh. * #7584: Fix NaN-handling for vectorized aggregation. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @pgloader for reporting the issue in an internal background job. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
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Jan 23, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.17.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * #7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * #7104: Hypercore table access method. * #6901: Add hypertable support for transition tables. * #7482: Optimize recompression of partially compressed chunks. * #7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * #7433: Add support for merging chunks. * #7271: Push down `order by` in real-time continuous aggregate queries. * #7455: Support `drop not null` on compressed hypertables. * #7295: Support `alter table set access method` on hypertable. * #7411: Change parameter name to enable hypercore table access method. * #7436: Add index creation on `order by` columns. * #7443: Add hypercore function and view aliases. * #7521: Add optional `force` argument to `refresh_continuous_aggregate`. * #7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * #7565: Add hint when hypertable creation fails. * #7390: Disable custom `hashagg` planner code. * #7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * #7486: Prevent building against PostgreSQL versions with broken ABI. * #7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * #7413: Add GUC for segmentwise recompression. **Bugfixes** * #7378: Remove obsolete job referencing `policy_job_error_retention`. * #7409: Update `bgw_job` table when altering procedure. * #7410: Fix the `aggregated compressed column not found` error on aggregation query. * #7426: Fix `datetime` parsing error in chunk constraint creation. * #7432: Verify that the heap tuple is valid before using. * #7434: Fix the segfault when internally setting the replica identity for a given chunk. * #7488: Emit error for transition table trigger on chunks. * #7514: Fix the error: `invalid child of chunk append`. * #7517: Fix the performance regression on the `cagg_migrate` procedure. * #7527: Restart scheduler on error. * #7557: Fix null handling for in-memory tuple filtering. * #7566: Improve transaction check in CAGG refresh. * #7584: Fix NaN-handling for vectorized aggregation. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @pgloader for reporting the issue in an internal background job. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
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Jan 23, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.18.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * timescale#7104: Hypercore table access method. * timescale#6901: Add hypertable support for transition tables. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7433: Add support for merging chunks. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7436: Add index creation on `order by` columns. * timescale#7443: Add hypercore function and view aliases. * timescale#7521: Add optional `force` argument to `refresh_continuous_aggregate`. * timescale#7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565: Add hint when hypertable creation fails. * timescale#7390: Disable custom `hashagg` planner code. * timescale#7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * timescale#7486: Prevent building against PostgreSQL versions with broken ABI. * timescale#7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fix the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517: Fix the performance regression on the `cagg_migrate` procedure. * timescale#7527: Restart scheduler on error. * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566: Improve transaction check in CAGG refresh. * timescale#7584: Fix NaN-handling for vectorized aggregation. * timescale#7598: Match the Postgres NaN comparison behavior in WHERE clause over compressed tables. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @jakehedlund for reporting the incompatible NaN behavior in WHERE clause over compressed tables. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
pushed a commit
to pallavisontakke/timescaledb
that referenced
this pull request
Jan 23, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.18.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * timescale#7104: Hypercore table access method. * timescale#6901: Add hypertable support for transition tables. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7433: Add support for merging chunks. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7436: Add index creation on `order by` columns. * timescale#7443: Add hypercore function and view aliases. * timescale#7521: Add optional `force` argument to `refresh_continuous_aggregate`. * timescale#7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565: Add hint when hypertable creation fails. * timescale#7390: Disable custom `hashagg` planner code. * timescale#7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * timescale#7486: Prevent building against PostgreSQL versions with broken ABI. * timescale#7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fix the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517: Fix the performance regression on the `cagg_migrate` procedure. * timescale#7527: Restart scheduler on error. * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566: Improve transaction check in CAGG refresh. * timescale#7584: Fix NaN-handling for vectorized aggregation. * timescale#7598: Match the Postgres NaN comparison behavior in WHERE clause over compressed tables. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @jakehedlund for reporting the incompatible NaN behavior in WHERE clause over compressed tables. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
pushed a commit
to pallavisontakke/timescaledb
that referenced
this pull request
Jan 23, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.18.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * timescale#7104: Hypercore table access method. * timescale#6901: Add hypertable support for transition tables. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7433: Add support for merging chunks. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7436: Add index creation on `order by` columns. * timescale#7443: Add hypercore function and view aliases. * timescale#7521: Add optional `force` argument to `refresh_continuous_aggregate`. * timescale#7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565: Add hint when hypertable creation fails. * timescale#7390: Disable custom `hashagg` planner code. * timescale#7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * timescale#7486: Prevent building against PostgreSQL versions with broken ABI. * timescale#7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fix the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517: Fix the performance regression on the `cagg_migrate` procedure. * timescale#7527: Restart scheduler on error. * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566: Improve transaction check in CAGG refresh. * timescale#7584: Fix NaN-handling for vectorized aggregation. * timescale#7598: Match the Postgres NaN comparison behavior in WHERE clause over compressed tables. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @jakehedlund for reporting the incompatible NaN behavior in WHERE clause over compressed tables. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
pushed a commit
to pallavisontakke/timescaledb
that referenced
this pull request
Jan 24, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.18.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * timescale#7104: Hypercore table access method. * timescale#6901: Add hypertable support for transition tables. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7433: Add support for merging chunks. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7436: Add index creation on `order by` columns. * timescale#7443: Add hypercore function and view aliases. * timescale#7521: Add optional `force` argument to `refresh_continuous_aggregate`. * timescale#7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565: Add hint when hypertable creation fails. * timescale#7390: Disable custom `hashagg` planner code. * timescale#7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * timescale#7486: Prevent building against PostgreSQL versions with broken ABI. * timescale#7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fix the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517: Fix the performance regression on the `cagg_migrate` procedure. * timescale#7527: Restart scheduler on error. * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566: Improve transaction check in CAGG refresh. * timescale#7584: Fix NaN-handling for vectorized aggregation. * timescale#7598: Match the Postgres NaN comparison behavior in WHERE clause over compressed tables. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @jakehedlund for reporting the incompatible NaN behavior in WHERE clause over compressed tables. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
pushed a commit
to pallavisontakke/timescaledb
that referenced
this pull request
Jan 24, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.18.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * timescale#7104: Hypercore table access method. * timescale#6901: Add hypertable support for transition tables. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7433: Add support for merging chunks. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7436: Add index creation on `order by` columns. * timescale#7443: Add hypercore function and view aliases. * timescale#7521: Add optional `force` argument to `refresh_continuous_aggregate`. * timescale#7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565: Add hint when hypertable creation fails. * timescale#7390: Disable custom `hashagg` planner code. * timescale#7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * timescale#7486: Prevent building against PostgreSQL versions with broken ABI. * timescale#7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fix the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517: Fix the performance regression on the `cagg_migrate` procedure. * timescale#7527: Restart scheduler on error. * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566: Improve transaction check in CAGG refresh. * timescale#7584: Fix NaN-handling for vectorized aggregation. * timescale#7598: Match the Postgres NaN comparison behavior in WHERE clause over compressed tables. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @jakehedlund for reporting the incompatible NaN behavior in WHERE clause over compressed tables. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
pushed a commit
to pallavisontakke/timescaledb
that referenced
this pull request
Jan 24, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.18.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * timescale#7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * timescale#7104: Hypercore table access method. * timescale#6901: Add hypertable support for transition tables. * timescale#7482: Optimize recompression of partially compressed chunks. * timescale#7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * timescale#7433: Add support for merging chunks. * timescale#7271: Push down `order by` in real-time continuous aggregate queries. * timescale#7455: Support `drop not null` on compressed hypertables. * timescale#7295: Support `alter table set access method` on hypertable. * timescale#7411: Change parameter name to enable hypercore table access method. * timescale#7436: Add index creation on `order by` columns. * timescale#7443: Add hypercore function and view aliases. * timescale#7521: Add optional `force` argument to `refresh_continuous_aggregate`. * timescale#7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * timescale#7565: Add hint when hypertable creation fails. * timescale#7390: Disable custom `hashagg` planner code. * timescale#7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * timescale#7486: Prevent building against PostgreSQL versions with broken ABI. * timescale#7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * timescale#7413: Add GUC for segmentwise recompression. **Bugfixes** * timescale#7378: Remove obsolete job referencing `policy_job_error_retention`. * timescale#7409: Update `bgw_job` table when altering procedure. * timescale#7410: Fix the `aggregated compressed column not found` error on aggregation query. * timescale#7426: Fix `datetime` parsing error in chunk constraint creation. * timescale#7432: Verify that the heap tuple is valid before using. * timescale#7434: Fix the segfault when internally setting the replica identity for a given chunk. * timescale#7488: Emit error for transition table trigger on chunks. * timescale#7514: Fix the error: `invalid child of chunk append`. * timescale#7517: Fix the performance regression on the `cagg_migrate` procedure. * timescale#7527: Restart scheduler on error. * timescale#7557: Fix null handling for in-memory tuple filtering. * timescale#7566: Improve transaction check in CAGG refresh. * timescale#7584: Fix NaN-handling for vectorized aggregation. * timescale#7598: Match the Postgres NaN comparison behavior in WHERE clause over compressed tables. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @jakehedlund for reporting the incompatible NaN behavior in WHERE clause over compressed tables. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
svenklemm
pushed a commit
that referenced
this pull request
Jan 24, 2025
This release introduces the ability to add secondary indexes to the columnstore, improves group by and filtering performance through columnstore vectorization, and contains the highly upvoted community request of transition table support. We recommend that you upgrade at the next available opportunity. **Highlighted features in TimescaleDB v2.18.0** * The ability to add secondary indexes to the columnstore through the new hypercore table access method. * Significant performance improvements through vectorization (`SIMD`) for aggregations using a group by with one column and/or using a filter clause when querying the columnstore. * Hypertables support triggers for transition tables, which is one of the most upvoted community feature requests. * Updated methods to manage Timescale's hybrid row-columnar store (hypercore) that highlight the usage of the columnstore which includes both an optimized columnar format as well as compression. **Dropping support for Bitnami images** After the recent change in Bitnami’s [LTS support policy](bitnami/containers#75671), we are no longer building Bitnami images for TimescaleDB. We recommend using the [official TimescaleDB Docker image](https://hub.docker.com/r/timescale/timescaledb-ha) **Deprecation Notice** We are deprecating the following parameters, functions, procedures and views. They will be removed with the next major release of TimescaleDB. Please find the replacements in the table below: | Deprecated | Replacement | Type | | --- | --- | --- | | decompress_chunk | convert_to_rowstore | Procedure | | compress_chunk | convert_to_columnstore | Procedure | | add_compression_policy | add_columnstore_policy | Function | | remove_compression_policy | remove_columnstore_policy | Function | | hypertable_compression_stats | hypertable_columnstore_stats | Function | | chunk_compression_stats | chunk_columnstore_stats | Function | | hypertable_compression_settings | hypertable_columnstore_settings | View | | chunk_compression_settings | chunk_columnstore_settings | View | | compression_settings | columnstore_settings | View | | timescaledb.compress | timescaledb.enable_columnstore | Parameter | | timescaledb.compress_segmentby | timescaledb.segmentby | Parameter | | timescaledb.compress_orderby | timescaledb.orderby | Parameter | **Features** * #7341: Vectorized aggregation with grouping by one fixed-size by-value compressed column (such as arithmetic types). * #7104: Hypercore table access method. * #6901: Add hypertable support for transition tables. * #7482: Optimize recompression of partially compressed chunks. * #7458: Support vectorized aggregation with aggregate `filter` clauses that are also vectorizable. * #7433: Add support for merging chunks. * #7271: Push down `order by` in real-time continuous aggregate queries. * #7455: Support `drop not null` on compressed hypertables. * #7295: Support `alter table set access method` on hypertable. * #7411: Change parameter name to enable hypercore table access method. * #7436: Add index creation on `order by` columns. * #7443: Add hypercore function and view aliases. * #7521: Add optional `force` argument to `refresh_continuous_aggregate`. * #7528: Transform sorting on `time_bucket` to sorting on time for compressed chunks in some cases. * #7565: Add hint when hypertable creation fails. * #7390: Disable custom `hashagg` planner code. * #7587: Add `include_tiered_data` parameter to `add_continuous_aggregate_policy` API. * #7486: Prevent building against PostgreSQL versions with broken ABI. * #7412: Add [GUC](https://www.postgresql.org/docs/current/acronyms.html#:~:text=GUC) for the `hypercore_use_access_method` default. * #7413: Add GUC for segmentwise recompression. **Bugfixes** * #7378: Remove obsolete job referencing `policy_job_error_retention`. * #7409: Update `bgw_job` table when altering procedure. * #7410: Fix the `aggregated compressed column not found` error on aggregation query. * #7426: Fix `datetime` parsing error in chunk constraint creation. * #7432: Verify that the heap tuple is valid before using. * #7434: Fix the segfault when internally setting the replica identity for a given chunk. * #7488: Emit error for transition table trigger on chunks. * #7514: Fix the error: `invalid child of chunk append`. * #7517: Fix the performance regression on the `cagg_migrate` procedure. * #7527: Restart scheduler on error. * #7557: Fix null handling for in-memory tuple filtering. * #7566: Improve transaction check in CAGG refresh. * #7584: Fix NaN-handling for vectorized aggregation. * #7598: Match the Postgres NaN comparison behavior in WHERE clause over compressed tables. **Thanks** * @bharrisau for reporting the segfault when creating chunks. * @jakehedlund for reporting the incompatible NaN behavior in WHERE clause over compressed tables. * @k-rus for suggesting that we add a hint when hypertable creation fails. * @staticlibs for sending the pull request that improves the transaction check in CAGG refresh. * @uasiddiqi for reporting the `aggregated compressed column not found` error.
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This adds support for using statement-level triggers with transition tables to hypertables. We deliberately do not support statement-level nor row-level triggers with transition tables on chunks and error out if attempts are made to either add such triggers to a chunk or create a hypertable from a table with such triggers.
We also change the error messages to look more like the corresponding PostgreSQL error message.