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

Sync FK behaviour when creating hypertable #7301

Merged
merged 1 commit into from
Sep 30, 2024
Merged

Sync FK behaviour when creating hypertable #7301

merged 1 commit into from
Sep 30, 2024

Conversation

svenklemm
Copy link
Member

We now allow FKs to hypertables but the initial check when creating the hypertable was not adjusted so tables with pre-existing FKs would not be allowed to be changed into hypertable while creating the FK constraint afterwards succeeded.

@svenklemm svenklemm added this to the TimescaleDB 2.17.0 milestone Sep 25, 2024
@svenklemm svenklemm self-assigned this Sep 25, 2024
src/hypertable.c Outdated
/*
* Hypertable <-> hypertable foreign keys are not supported.
*/
if (form->contype == CONSTRAINT_FOREIGN && ts_hypertable_relid_to_id(form->conrelid) != -1)
Copy link
Contributor

Choose a reason for hiding this comment

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

Why not use INVALID_HYPERTABLE_ID here?

Copy link
Member Author

Choose a reason for hiding this comment

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

Because the function returns -1 if this is not a hypertable and INVALID_HYPERTABLE_ID is 0

Copy link
Contributor

Choose a reason for hiding this comment

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

Then the function should return INVALID_HYPERTABLE_ID instead of -1 to be in sync with the rest of the code base.

@svenklemm svenklemm force-pushed the fk_check branch 4 times, most recently from e673468 to 3554458 Compare September 30, 2024 08:11
We now allow FKs to hypertables but the initial check when creating
the hypertable was not adjusted so tables with pre-existing FKs
would not be allowed to be changed into hypertable while creating
the FK constraint afterwards succeeded.
@svenklemm svenklemm merged commit 98668b8 into main Sep 30, 2024
37 checks passed
@svenklemm svenklemm deleted the fk_check branch September 30, 2024 08:49
@pallavisontakke pallavisontakke mentioned this pull request Oct 3, 2024
pallavisontakke added a commit to pallavisontakke/timescaledb that referenced this pull request Oct 8, 2024
This release contains performance improvements and bug fixes since
the 2.16.1 release. We recommend that you upgrade at the next
available opportunity.

**Features**
* timescale#6882: Allow DELETE on the compressed chunks without decompression.
* timescale#7033 Use MERGE statement on CAgg Refresh
* timescale#7126: Add functions to show the compression information.
* timescale#7147: Vectorize partial aggregation for `sum
* timescale#7200: Vectorize common aggregate functions like `min`, `max`, `sum`, `avg`, `stddev`, `variance` for compressed columns of arithmetic types, when there is grouping on segmentby columns or no grouping.
* timescale#7204: Track additional extensions in telemetry.
* timescale#7207: Refactor the `decompress_batches_scan` functions for easier maintenance.
* timescale#7209: Add a function to drop the `osm` chunk.
* timescale#7275: Add support for RETURNING clause for MERGE
* timescale#7295 Support ALTER TABLE SET ACCESS METHOD on hypertable

**Bugfixes**
* timescale#7187: Fix the string literal length for the `compressed_data_info` function.
* timescale#7191: Fix creating default indexes on chunks when migrating the data.
* timescale#7195: Fix the `segment by` and `order by` checks when dropping a column from a compressed hypertable.
* timescale#7201: Use the generic extension description when building `apt` and `rpm` loader packages.
* timescale#7227: Add an index to the `compression_chunk_size` catalog table.
* timescale#7229: Fix the foreign key constraints where the index and the constraint column order are different.
* timescale#7230: Do not propagate the foreign key constraints to the `osm` chunk.
* timescale#7234: Release the cache after accessing the cache entry.
* timescale#7258 Force English in the pg_config command executed by cmake to avoid unexpected building errors
* timescale#7270 Fix memory leak in compressed DML batch filtering
* timescale#7286: Fix index column check while searching for index
* timescale#7290 Add check for NULL offset for caggs built on top of caggs
* timescale#7301 Make foreign key behaviour for hypertables consistent
* timescale#7318: Fix chunk skipping range filtering
* timescale#7320 Set license specific extension comment in install script

**Thanks**
* @MiguelTubio for reporting and fixing a Windows build error
* @posuch for reporting the misleading extension description in the generic loader packages.
* @snyrkill for discovering and reporting the issue
@pallavisontakke pallavisontakke mentioned this pull request Oct 8, 2024
pallavisontakke added a commit that referenced this pull request Oct 8, 2024
This release adds support for PostgreSQL 17, significantly improves the
performance of continuous aggregate refreshes,
and contains performance improvements for analytical queries and delete
operations over compressed hypertables.
We recommend that you upgrade at the next available opportunity.

**Highlighted features in TimescaleDB v2.17.0**

* Full PostgreSQL 17 support for all existing features. TimescaleDB
v2.17 is available for PostgreSQL 14, 15, 16, and 17.

* Significant performance improvements for continuous aggregate
policies: continuous aggregate refresh is now using
`merge` instead of deleting old materialized data and re-inserting.

This update can decrease dramatically the amount of data that must be
written on the continuous aggregate in the
presence of a small number of changes, reduce the `i/o` cost of
refreshing a continuous aggregate, and generate fewer
  Write-Ahead Logs (`WAL`).
Overall, continuous aggregate policies will be more lightweight, use
less system resources, and complete faster.

* Increased performance for real-time analytical queries over compressed
hypertables:
we are excited to introduce additional Single Instruction, Multiple Data
(`SIMD`) vectorization optimization to our
engine by supporting vectorized execution for queries that group by
using the `segment_by` column(s) and
aggregate using the basic aggregate functions (`sum`, `count`, `avg`,
`min`, `max`).

Stay tuned for more to come in follow-up releases! Support for grouping
on additional columns, filtered aggregation,
  vectorized expressions, and `time_bucket` is coming soon.

* Improved performance of deletes on compressed hypertables when a large
amount of data is affected.

This improvement speeds up operations that delete whole segments by
skipping the decompression step.
It is enabled for all deletes that filter by the `segment_by` column(s).

**PostgreSQL 14 deprecation announcement**

We will continue supporting PostgreSQL 14 until April 2025. Closer to
that time, we will announce the specific
version of TimescaleDB in which PostgreSQL 14 support will not be
included going forward.

**Features**
* #6882: Allow delete of full segments on compressed chunks without
decompression.
* #7033: Use `merge` statement on continuous aggregates refresh.
* #7126: Add functions to show the compression information.
* #7147: Vectorize partial aggregation for `sum(int4)` with grouping on
`segment by` columns.
* #7204: Track additional extensions in telemetry.
* #7207: Refactor the `decompress_batches_scan` functions for easier
maintenance.
* #7209: Add a function to drop the `osm` chunk.
* #7275: Add support for the `returning` clause for `merge`.
* #7200: Vectorize common aggregate functions like `min`, `max`, `sum`,
`avg`, `stddev`, `variance` for compressed columns
of arithmetic types, when there is grouping on `segment by` columns or
no grouping.

**Bug fixes**
* #7187: Fix the string literal length for the `compressed_data_info`
function.
* #7191: Fix creating default indexes on chunks when migrating the data.
* #7195: Fix the `segment by` and `order by` checks when dropping a
column from a compressed hypertable.
* #7201: Use the generic extension description when building `apt` and
`rpm` loader packages.
* #7227: Add an index to the `compression_chunk_size` catalog table.
* #7229: Fix the foreign key constraints where the index and the
constraint column order are different.
* #7230: Do not propagate the foreign key constraints to the `osm`
chunk.
* #7234: Release the cache after accessing the cache entry.
* #7258: Force English in the `pg_config` command executed by `cmake` to
avoid the unexpected building errors.
* #7270: Fix the memory leak in compressed DML batch filtering.
* #7286: Fix the index column check while searching for the index.
* #7290: Add check for null offset for continuous aggregates built on
top of continuous aggregates.
* #7301: Make foreign key behavior for hypertables consistent.
* #7318: Fix chunk skipping range filtering.
* #7320: Set the license specific extension comment in the install
script.

**Thanks**
* @MiguelTubio for reporting and fixing the Windows build error.
* @posuch for reporting the misleading extension description in the
generic loader packages.
* @snyrkill for discovering and reporting the issue with continuous
aggregates built on top of continuous aggregates.
svenklemm added a commit that referenced this pull request Oct 8, 2024
This release adds support for PostgreSQL 17, significantly improves the
performance of continuous aggregate refreshes,
and contains performance improvements for analytical queries and delete
operations over compressed hypertables.
We recommend that you upgrade at the next available opportunity.

**Highlighted features in TimescaleDB v2.17.0**

* Full PostgreSQL 17 support for all existing features. TimescaleDB
v2.17 is available for PostgreSQL 14, 15, 16, and 17.

* Significant performance improvements for continuous aggregate
policies: continuous aggregate refresh is now using
`merge` instead of deleting old materialized data and re-inserting.

This update can decrease dramatically the amount of data that must be
written on the continuous aggregate in the
presence of a small number of changes, reduce the `i/o` cost of
refreshing a continuous aggregate, and generate fewer
  Write-Ahead Logs (`WAL`).
Overall, continuous aggregate policies will be more lightweight, use
less system resources, and complete faster.

* Increased performance for real-time analytical queries over compressed
hypertables:
we are excited to introduce additional Single Instruction, Multiple Data
(`SIMD`) vectorization optimization to our
engine by supporting vectorized execution for queries that group by
using the `segment_by` column(s) and
aggregate using the basic aggregate functions (`sum`, `count`, `avg`,
`min`, `max`).

Stay tuned for more to come in follow-up releases! Support for grouping
on additional columns, filtered aggregation,
  vectorized expressions, and `time_bucket` is coming soon.

* Improved performance of deletes on compressed hypertables when a large
amount of data is affected.

This improvement speeds up operations that delete whole segments by
skipping the decompression step.
It is enabled for all deletes that filter by the `segment_by` column(s).

**PostgreSQL 14 deprecation announcement**

We will continue supporting PostgreSQL 14 until April 2025. Closer to
that time, we will announce the specific
version of TimescaleDB in which PostgreSQL 14 support will not be
included going forward.

**Features**
* #6882: Allow delete of full segments on compressed chunks without
decompression.
* #7033: Use `merge` statement on continuous aggregates refresh.
* #7126: Add functions to show the compression information.
* #7147: Vectorize partial aggregation for `sum(int4)` with grouping on
`segment by` columns.
* #7204: Track additional extensions in telemetry.
* #7207: Refactor the `decompress_batches_scan` functions for easier
maintenance.
* #7209: Add a function to drop the `osm` chunk.
* #7275: Add support for the `returning` clause for `merge`.
* #7200: Vectorize common aggregate functions like `min`, `max`, `sum`,
`avg`, `stddev`, `variance` for compressed columns
of arithmetic types, when there is grouping on `segment by` columns or
no grouping.

**Bug fixes**
* #7187: Fix the string literal length for the `compressed_data_info`
function.
* #7191: Fix creating default indexes on chunks when migrating the data.
* #7195: Fix the `segment by` and `order by` checks when dropping a
column from a compressed hypertable.
* #7201: Use the generic extension description when building `apt` and
`rpm` loader packages.
* #7227: Add an index to the `compression_chunk_size` catalog table.
* #7229: Fix the foreign key constraints where the index and the
constraint column order are different.
* #7230: Do not propagate the foreign key constraints to the `osm`
chunk.
* #7234: Release the cache after accessing the cache entry.
* #7258: Force English in the `pg_config` command executed by `cmake` to
avoid the unexpected building errors.
* #7270: Fix the memory leak in compressed DML batch filtering.
* #7286: Fix the index column check while searching for the index.
* #7290: Add check for null offset for continuous aggregates built on
top of continuous aggregates.
* #7301: Make foreign key behavior for hypertables consistent.
* #7318: Fix chunk skipping range filtering.
* #7320: Set the license specific extension comment in the install
script.

**Thanks**
* @MiguelTubio for reporting and fixing the Windows build error.
* @posuch for reporting the misleading extension description in the generic loader packages.
* @snyrkill for discovering and reporting the issue with continuous
aggregates built on top of continuous aggregates.

---------

Signed-off-by: Pallavi Sontakke <[email protected]>
Signed-off-by: Yannis Roussos <[email protected]>
Signed-off-by: Sven Klemm <[email protected]>
Co-authored-by: Yannis Roussos <[email protected]>
Co-authored-by: atovpeko <[email protected]>
Co-authored-by: Sven Klemm <[email protected]>
kpan2034 pushed a commit to kpan2034/timescaledb that referenced this pull request Oct 11, 2024
This release adds support for PostgreSQL 17, significantly improves the
performance of continuous aggregate refreshes,
and contains performance improvements for analytical queries and delete
operations over compressed hypertables.
We recommend that you upgrade at the next available opportunity.

**Highlighted features in TimescaleDB v2.17.0**

* Full PostgreSQL 17 support for all existing features. TimescaleDB
v2.17 is available for PostgreSQL 14, 15, 16, and 17.

* Significant performance improvements for continuous aggregate
policies: continuous aggregate refresh is now using
`merge` instead of deleting old materialized data and re-inserting.

This update can decrease dramatically the amount of data that must be
written on the continuous aggregate in the
presence of a small number of changes, reduce the `i/o` cost of
refreshing a continuous aggregate, and generate fewer
  Write-Ahead Logs (`WAL`).
Overall, continuous aggregate policies will be more lightweight, use
less system resources, and complete faster.

* Increased performance for real-time analytical queries over compressed
hypertables:
we are excited to introduce additional Single Instruction, Multiple Data
(`SIMD`) vectorization optimization to our
engine by supporting vectorized execution for queries that group by
using the `segment_by` column(s) and
aggregate using the basic aggregate functions (`sum`, `count`, `avg`,
`min`, `max`).

Stay tuned for more to come in follow-up releases! Support for grouping
on additional columns, filtered aggregation,
  vectorized expressions, and `time_bucket` is coming soon.

* Improved performance of deletes on compressed hypertables when a large
amount of data is affected.

This improvement speeds up operations that delete whole segments by
skipping the decompression step.
It is enabled for all deletes that filter by the `segment_by` column(s).

**PostgreSQL 14 deprecation announcement**

We will continue supporting PostgreSQL 14 until April 2025. Closer to
that time, we will announce the specific
version of TimescaleDB in which PostgreSQL 14 support will not be
included going forward.

**Features**
* timescale#6882: Allow delete of full segments on compressed chunks without
decompression.
* timescale#7033: Use `merge` statement on continuous aggregates refresh.
* timescale#7126: Add functions to show the compression information.
* timescale#7147: Vectorize partial aggregation for `sum(int4)` with grouping on
`segment by` columns.
* timescale#7204: Track additional extensions in telemetry.
* timescale#7207: Refactor the `decompress_batches_scan` functions for easier
maintenance.
* timescale#7209: Add a function to drop the `osm` chunk.
* timescale#7275: Add support for the `returning` clause for `merge`.
* timescale#7200: Vectorize common aggregate functions like `min`, `max`, `sum`,
`avg`, `stddev`, `variance` for compressed columns
of arithmetic types, when there is grouping on `segment by` columns or
no grouping.

**Bug fixes**
* timescale#7187: Fix the string literal length for the `compressed_data_info`
function.
* timescale#7191: Fix creating default indexes on chunks when migrating the data.
* timescale#7195: Fix the `segment by` and `order by` checks when dropping a
column from a compressed hypertable.
* timescale#7201: Use the generic extension description when building `apt` and
`rpm` loader packages.
* timescale#7227: Add an index to the `compression_chunk_size` catalog table.
* timescale#7229: Fix the foreign key constraints where the index and the
constraint column order are different.
* timescale#7230: Do not propagate the foreign key constraints to the `osm`
chunk.
* timescale#7234: Release the cache after accessing the cache entry.
* timescale#7258: Force English in the `pg_config` command executed by `cmake` to
avoid the unexpected building errors.
* timescale#7270: Fix the memory leak in compressed DML batch filtering.
* timescale#7286: Fix the index column check while searching for the index.
* timescale#7290: Add check for null offset for continuous aggregates built on
top of continuous aggregates.
* timescale#7301: Make foreign key behavior for hypertables consistent.
* timescale#7318: Fix chunk skipping range filtering.
* timescale#7320: Set the license specific extension comment in the install
script.

**Thanks**
* @MiguelTubio for reporting and fixing the Windows build error.
* @posuch for reporting the misleading extension description in the generic loader packages.
* @snyrkill for discovering and reporting the issue with continuous
aggregates built on top of continuous aggregates.

---------

Signed-off-by: Pallavi Sontakke <[email protected]>
Signed-off-by: Yannis Roussos <[email protected]>
Signed-off-by: Sven Klemm <[email protected]>
Co-authored-by: Yannis Roussos <[email protected]>
Co-authored-by: atovpeko <[email protected]>
Co-authored-by: Sven Klemm <[email protected]>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

3 participants