Add shmem_request_hook #4411
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Add shmem_request_hook #4411
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svenklemm
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jnidzwetzki
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Codecov Report
@@ Coverage Diff @@
## main #4411 +/- ##
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Coverage 90.84% 90.84%
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Files 220 220
Lines 40505 40557 +52
=======================================
+ Hits 36795 36844 +49
- Misses 3710 3713 +3
Continue to review full report at Codecov.
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jnidzwetzki
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Jun 2, 2022
fabriziomello
approved these changes
Jun 3, 2022
This patch consolidates all shared memory requests in a shmem_request_hook. While there are no strict requirements when to request shared memory for PG < 15 in PG 15 it has to happen in the shmem_request_hook otherwise the request will be blocked. postgres/postgres@4f2400cb
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mkindahl
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Jul 7, 2022
This release is a patch release. We recommend that you upgrade at the next available opportunity. **Bugfixes** * #4494 Handle timescaledb versions aptly in multinode * #4493 Segfault when executing IMMUTABLE functions * #4482 Fix race conditions during chunk (de)compression * #4367 Improved buffer management in the copy operator * #4375 Don't ask for orderby column if default already set * #4400 Use our implementation of `find_em_expr_for_rel` for PG15+ * #4408 Fix crash during insert into distributed hypertable * #4411 Add `shmem_request_hook` * #4437 Fix segfault in subscription_exec * #4442 Fix perms in copy/move chunk * #4450 Retain hypertable ownership on `attach_data_node` * #4451 Repair numeric partial state on the fly * #4463 Fix empty bytea handlng with distributed tables * #4469 Better superuser handling for `move_chunk` **Features** * #4244 Function telemetry * #4287 Add internal api for foreign table chunk * #4470 Block drop chunk if chunk is in frozen state * #4464 Add internal api to associate a hypertable with custom jobs **Thanks** * @xin-hedera Finding bug in empty bytea values for distributed tables * @jflambert for reporting a bug with IMMUTABLE functions * @nikugogoi for reporting a bug with CTEs and upserts on distributed hypertables
mkindahl
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Jul 7, 2022
This release is a patch release. We recommend that you upgrade at the next available opportunity. **Bugfixes** * #4494 Handle timescaledb versions aptly in multinode * #4493 Segfault when executing IMMUTABLE functions * #4482 Fix race conditions during chunk (de)compression * #4367 Improved buffer management in the copy operator * #4375 Don't ask for orderby column if default already set * #4400 Use our implementation of `find_em_expr_for_rel` for PG15+ * #4408 Fix crash during insert into distributed hypertable * #4411 Add `shmem_request_hook` * #4437 Fix segfault in subscription_exec * #4442 Fix perms in copy/move chunk * #4450 Retain hypertable ownership on `attach_data_node` * #4451 Repair numeric partial state on the fly * #4463 Fix empty bytea handlng with distributed tables * #4469 Better superuser handling for `move_chunk` **Features** * #4244 Function telemetry * #4287 Add internal api for foreign table chunk * #4470 Block drop chunk if chunk is in frozen state * #4464 Add internal api to associate a hypertable with custom jobs **Thanks** * @xin-hedera Finding bug in empty bytea values for distributed tables * @jflambert for reporting a bug with IMMUTABLE functions * @nikugogoi for reporting a bug with CTEs and upserts on distributed hypertables
mkindahl
added a commit
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Jul 7, 2022
This release is a patch release. We recommend that you upgrade at the next available opportunity. **Bugfixes** * #4494 Handle timescaledb versions aptly in multinode * #4493 Segfault when executing IMMUTABLE functions * #4482 Fix race conditions during chunk (de)compression * #4367 Improved buffer management in the copy operator * #4375 Don't ask for orderby column if default already set * #4400 Use our implementation of `find_em_expr_for_rel` for PG15+ * #4408 Fix crash during insert into distributed hypertable * #4411 Add `shmem_request_hook` * #4437 Fix segfault in subscription_exec * #4442 Fix perms in copy/move chunk * #4450 Retain hypertable ownership on `attach_data_node` * #4451 Repair numeric partial state on the fly * #4463 Fix empty bytea handlng with distributed tables * #4469 Better superuser handling for `move_chunk` **Features** * #4244 Function telemetry * #4287 Add internal api for foreign table chunk * #4470 Block drop chunk if chunk is in frozen state * #4464 Add internal api to associate a hypertable with custom jobs **Thanks** * @xin-hedera Finding bug in empty bytea values for distributed tables * @jflambert for reporting a bug with IMMUTABLE functions * @nikugogoi for reporting a bug with CTEs and upserts on distributed hypertables
mkindahl
added a commit
that referenced
this pull request
Jul 7, 2022
This release is a patch release. We recommend that you upgrade at the next available opportunity. **Bugfixes** * #4494 Handle timescaledb versions aptly in multinode * #4493 Segfault when executing IMMUTABLE functions * #4482 Fix race conditions during chunk (de)compression * #4367 Improved buffer management in the copy operator * #4375 Don't ask for orderby column if default already set * #4400 Use our implementation of `find_em_expr_for_rel` for PG15+ * #4408 Fix crash during insert into distributed hypertable * #4411 Add `shmem_request_hook` * #4437 Fix segfault in subscription_exec * #4442 Fix perms in copy/move chunk * #4450 Retain hypertable ownership on `attach_data_node` * #4451 Repair numeric partial state on the fly * #4463 Fix empty bytea handlng with distributed tables * #4469 Better superuser handling for `move_chunk` **Features** * #4244 Function telemetry * #4287 Add internal api for foreign table chunk * #4470 Block drop chunk if chunk is in frozen state * #4464 Add internal api to associate a hypertable with custom jobs **Thanks** * @xin-hedera Finding bug in empty bytea values for distributed tables * @jflambert for reporting a bug with IMMUTABLE functions * @nikugogoi for reporting a bug with CTEs and upserts on distributed hypertables
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This patch consolidates all shared memory requests in a
shmem_request_hook. While there are no strict requirements when
to request shared memory for PG < 15 in PG 15 it has to happen
in the shmem_request_hook otherwise the request will be blocked.
postgres/postgres@4f2400cb