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\nIn cases where partitions' column sets aren't physically identical to their parent partitioned tables' column sets, this oversight could lead to crashes.
", "text": "Fix incorrect logic for caching result-relation information for triggers (David Rowley, Amit Langote) § In cases where partitions' column sets aren't physically identical to their parent partitioned tables' column sets, this oversight could lead to crashes.", "title": "Fix incorrect logic for caching result-relation information for triggers", "commits": ["2992b9a07"], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/15.15/#id-1.11.6.10.5", "source_hash": "0cb3f3ec5386edf89beb87030ef01e146217b4365866ce4a784b45c81fe6c34a", "section_path": ["Changes"], "commit_groups": [["0d3074615", "2992b9a07", "39dcfda2d", "a2387c32f", "a546964db"]], "identity_text": "Fix incorrect logic for caching result-relation information for triggers (David Rowley, Amit Langote) In cases where partitions' column sets aren't physically identical to their parent partitioned tables' column sets, this oversight could lead to crashes.", "commit_aliases": ["0d3074615", "2992b9a07", "39dcfda2d", "a2387c32f", "a546964db"], "source_commits": ["2992b9a07"], "source_entry_id": "15.15/changes/013", "db_id": "bb7f7a3657690f7a6c75d641dcc65860", "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef", "relations": [{"rule": 2, "type": "equivalent", "target": "13af7f30c1a66144a7c4729335ad6c55", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}}, {"rule": 2, "type": "equivalent", "target": "7ba23c07eaeb399e352fe32a704464e6", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}}, {"rule": 2, "type": "equivalent", "target": "ba3b5897c3d85845178cb5eee8dfba01", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}}], "version": "15.15", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "13af7f30c1a66144a7c4729335ad6c55", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "Fix incorrect logic for caching result-relation information for triggers", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}, "url": "/docs/compare/?release=18.1#18.1-fa17262588de7970", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "ba3b5897c3d85845178cb5eee8dfba01", "kind": "equivalent", "version": "17.7", "label": "17.7", "title": "Fix incorrect logic for caching result-relation information for triggers", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}, "url": "/docs/compare/?release=17.7#17.7-6305949a00dd4b54", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES"}, {"db_id": "7ba23c07eaeb399e352fe32a704464e6", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "Fix incorrect logic for caching result-relation information for triggers", "evidence": {"same_day": true, "patch_ids": ["aceec90d9a86d1b6d642dda660eebd6f"], "statement_hash": "026782085dea5b1090d57d834e0d4c7d0bc778a784349b74f9ef89ce84fcfaef"}, "url": "/docs/compare/?release=16.11#16.11-b434454c9c408c94", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}]}, {"id": "15.15-486ee448380434dd", "cves": [], "html": "Add missing EvalPlanQual rechecks for TID Scan and TID Range Scan plan nodes (Sophie Alpert, David Rowley) § §
\nThis omission led to possibly not rechecking a condition on ctid during concurrent-update situations, causing the update's behavior to vary depending on which plan type had been selected.
Fix EvalPlanQual handling of foreign or custom joins that do not have an alternative local-join plan prepared for EPQ (Masahiko Sawada, Etsuro Fujita) §
\nIn such cases the foreign or custom access method should be invoked normally, but that did not happen, typically leading to a crash.
", "text": "Fix EvalPlanQual handling of foreign or custom joins that do not have an alternative local-join plan prepared for EPQ (Masahiko Sawada, Etsuro Fujita) § In such cases the foreign or custom access method should be invoked normally, but that did not happen, typically leading to a crash.", "title": "Fix EvalPlanQual handling of foreign or custom joins that do not have an alternative local-join plan prepared for EPQ", "commits": ["4a08603a2"], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/15.15/#id-1.11.6.10.5", "source_hash": "1bedc61344c837c93a33682d2f62a6a9f339d5e78ba32f2ebef097c5cb92c4a6", "section_path": ["Changes"], "commit_groups": [["12609fbac", "12b0c0e51", "24e74b962", "2bb84ea7e", "4a08603a2", "5a9af4868", "b14144325"]], "identity_text": "Fix EvalPlanQual handling of foreign or custom joins that do not have an alternative local-join plan prepared for EPQ (Masahiko Sawada, Etsuro Fujita) In such cases the foreign or custom access method 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ALTER TABLE DETACH PARTITION CONCURRENTLY was written to add a copy of the partitioning constraint to the now-detached partition. This was misguided, partially because non-concurrent DETACH doesn't do that, but mostly because in the case of hash partitioning the constraint expression contains references to the parent table's OID. That causes problems during dump/restore, or if the parent table is dropped after DETACH. In v19 and later, we'll no longer create any such copied constraints at all. In released branches, to minimize the risk of unforeseen consequences, only skip adding a copied constraint if it is for hash partitioning.
Disallow generated columns in partition keys (Jian He, Ashutosh Bapat) §
\nThis was already not allowed, but the check missed some cases, such as where the column reference is implicit in a whole-row reference.
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Previously, incorrect behavior or an obscure error message resulted from attempting to reference such a column, since generated columns have not yet been computed at the point where WHERE filtering is done.
Fix visibility checking for statistics objects in pg_temp (Noah Misch) §
A statistics object located in a temporary schema cannot be named without schema qualification, but pg_statistics_obj_is_visible() missed that memo and could return “true” regardless. In turn, functions such as pg_describe_object() could fail to schema-qualify the object's name as expected.
Fix pg_event_trigger_dropped_objects()'s reporting of temporary status (Antoine Violin, Tom Lane) § §
If a dropped column default, trigger, or RLS policy belongs to a temporary table, report it with is_temporary true.
Fix memory leakage in hashed subplans (Haiyang Li) §
\nAny memory consumed by the hash functions used for hashing tuples constituted a query-lifespan memory leak. One way that could happen is if the values being hashed require de-toasting.
", "text": "Fix memory leakage in hashed subplans (Haiyang Li) § Any memory consumed by the hash functions used for hashing tuples constituted a query-lifespan memory leak. One way that could happen is if the values being hashed require de-toasting.", "title": "Fix memory leakage in hashed subplans", "commits": ["5ac973892"], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/15.15/#id-1.11.6.10.5", "source_hash": "2af162f69acfb25df1fcd82356b66c5d449678c293f79cd80a0c1aca72926205", "section_path": ["Changes"], "commit_groups": [["5ac973892", "5eab9b0a4", "862980f92", "8b6c29afd", "abdeacdb0", "bc865ff6d", "e1da9c072"]], "identity_text": "Fix memory leakage in hashed subplans (Haiyang Li) Any memory consumed by the hash functions used for hashing tuples constituted a query-lifespan memory leak. One way that could happen is if the values being hashed require de-toasting.", "commit_aliases": ["5ac973892", "5eab9b0a4", "862980f92", "8b6c29afd", "abdeacdb0", "bc865ff6d", "e1da9c072"], "source_commits": ["5ac973892"], "source_entry_id": "15.15/changes/021", "db_id": "f0d430aa11163b42d6790f75f65289ab", "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96", "relations": [{"rule": 2, "type": "equivalent", "target": "66d28945048365b27caabd86520573af", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}, {"rule": 2, "type": "equivalent", "target": "716c8f69dbded655fabcf097344a2b29", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}, {"rule": 2, "type": "equivalent", "target": "a023f6ed4b374eb0dc96609493ee88eb", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}, {"rule": 2, "type": "equivalent", "target": "caf35b0c52d2f2d7be09e47941e76dee", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}}], "version": "15.15", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "a023f6ed4b374eb0dc96609493ee88eb", "kind": "equivalent", "version": "17.7", "label": "17.7", "title": "Fix memory leakage in hashed subplans", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=17.7#17.7-e2424f99d2f437b5", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES"}, {"db_id": "716c8f69dbded655fabcf097344a2b29", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "Fix memory leakage in hashed subplans", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=16.11#16.11-690bb3133c148d74", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}, {"db_id": "caf35b0c52d2f2d7be09e47941e76dee", "kind": "equivalent", "version": "14.20", "label": "14.20", "title": "Fix memory leakage in hashed subplans", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=14.20#14.20-33e44d7312fadeff", "source_url": "/docs/release/14.20/#id-1.11.6.10.5"}, {"db_id": "66d28945048365b27caabd86520573af", "kind": "equivalent", "version": "13.23", "label": "13.23", "title": "Fix memory leakage in hashed subplans", "evidence": {"same_day": true, "patch_ids": ["a2bb67b75f354f5dabcb71fadb21152b"], "statement_hash": "cdba0b2e8608b306f2792e48f6e19e37fcda5c115bfca2f87ba1928523ed4b96"}, "url": "/docs/compare/?release=13.23#13.23-7cc556201553018b", "source_url": "/docs/release/13.23/#id-1.11.6.6.6"}]}, {"id": "15.15-e3961aff6d69ca4a", "cves": [], "html": "Fix minor memory leak during WAL replay of database creation (Nathan Bossart) §
", "text": "Fix minor memory leak during WAL replay of database creation (Nathan Bossart) §", "title": "Fix minor memory leak during WAL replay of database creation", "commits": ["23b316c36"], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/15.15/#id-1.11.6.10.5", "source_hash": "460dd9fedbfb2f390d48767e560c2f26111ac861f3d84899b7980ecf71a255b1", "section_path": ["Changes"], "commit_groups": [["23b316c36", "33e7b4a7c", "c72b5c536", "f9993ac64", "ff47f9c16"]], "identity_text": "Fix minor memory leak during WAL replay of database creation (Nathan Bossart)", "commit_aliases": ["23b316c36", "33e7b4a7c", "c72b5c536", "f9993ac64", "ff47f9c16"], "source_commits": ["23b316c36"], "source_entry_id": "15.15/changes/022", "db_id": "52d97c7cf8fbcce26fef4b0c910e4bf6", "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c", "relations": [{"rule": 2, "type": "equivalent", "target": "07b0f2ed9748f2ad84f75138a8f693ab", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}}, {"rule": 2, "type": "equivalent", "target": "0e7b5976bd913c25991a5ff549ac5f81", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}}, {"rule": 2, "type": "equivalent", "target": "4be639cfbce3dac014c7f3139f4beaa7", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}}], "version": "15.15", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "0e7b5976bd913c25991a5ff549ac5f81", "kind": "equivalent", "version": "18.1", "label": "18.1", "title": "Fix minor memory leak during WAL replay of database creation", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}, "url": "/docs/compare/?release=18.1#18.1-c10f4000798b8d9f", "source_url": "/docs/release/18.1/#RELEASE-18-1-CHANGES"}, {"db_id": "4be639cfbce3dac014c7f3139f4beaa7", "kind": "equivalent", "version": "17.7", "label": "17.7", "title": "Fix minor memory leak during WAL replay of database creation", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}, "url": "/docs/compare/?release=17.7#17.7-200457c819df1105", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES"}, {"db_id": "07b0f2ed9748f2ad84f75138a8f693ab", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "Fix minor memory leak during WAL replay of database creation", "evidence": {"same_day": true, "patch_ids": ["7b3c9562820ec298d794a69d51573920"], "statement_hash": "aaf589db3ca0547c1138682c80ba4c30d7666e77fdcd70b3a9824de7014ad03c"}, "url": "/docs/compare/?release=16.11#16.11-2e0c5a7298bb48a1", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}]}, {"id": "15.15-092c3fabcf87a792", "cves": [], "html": "Fix corruption of the shared statistics table after out-of-memory failures (Mikhail Kot) §
\nPreviously, an out-of-memory failure partway through creating a new hash table entry left a broken entry behind, potentially causing errors in other sessions later.
", "text": "Fix corruption of the shared statistics table after out-of-memory failures (Mikhail Kot) § Previously, an out-of-memory failure partway through creating a new hash table entry left a broken entry behind, potentially causing errors in other sessions later.", "title": "Fix corruption of the shared statistics table after out-of-memory failures", "commits": ["1852ec5db"], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/15.15/#id-1.11.6.10.5", "source_hash": "46f2c202a486bfaa03978530d723985b79a93b6c0b3ce6ccb76df089547f327f", "section_path": ["Changes"], "commit_groups": [["12f57681c", "1852ec5db", "3e6dfcfb0", "8191e0c16", "f256a7bba"]], "identity_text": "Fix corruption of the shared statistics table after out-of-memory failures (Mikhail Kot) Previously, an out-of-memory failure partway through creating a new hash table entry left a broken entry behind, potentially causing errors in other sessions later.", "commit_aliases": ["12f57681c", "1852ec5db", "3e6dfcfb0", "8191e0c16", "f256a7bba"], "source_commits": ["1852ec5db"], "source_entry_id": "15.15/changes/023", "db_id": "e3be8eb6c685942d1ed8b0a46aef228d", "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315", "relations": [{"rule": 2, "type": "equivalent", "target": "e04d248137ebff8b4925101d2d580e2f", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}}, {"rule": 2, "type": "equivalent", "target": "f23e41805c101675a10149bbc9f843a2", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}}], "version": "15.15", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "e04d248137ebff8b4925101d2d580e2f", "kind": "equivalent", "version": "17.7", "label": "17.7", "title": "Fix corruption of the shared statistics table after out-of-memory failures", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}, "url": "/docs/compare/?release=17.7#17.7-f24d4db0884e5b15", "source_url": "/docs/release/17.7/#RELEASE-17-7-CHANGES"}, {"db_id": "f23e41805c101675a10149bbc9f843a2", "kind": "equivalent", "version": "16.11", "label": "16.11", "title": "Fix corruption of the shared statistics table after out-of-memory failures", "evidence": {"same_day": true, "patch_ids": ["26897e0ef72dc7a9b009d5b34ec5d2ea"], "statement_hash": "af500ba26ad0df8abfaed0a4561558ddde2bb07d3bed0254add64eb0fa812315"}, "url": "/docs/compare/?release=16.11#16.11-2c62d646d59219fb", "source_url": "/docs/release/16.11/#RELEASE-16-11-CHANGES"}]}, {"id": "15.15-8d14c2b41b2cf2a3", "cves": [], "html": "Fix concurrent update issue in MERGE (Yugo Nagata) §
When executing a MERGE UPDATE action, if there is more than one concurrent update of the target row, the lock-and-retry code would sometimes incorrectly identify the latest version of the target tuple, leading to incorrect results.
Add missing replica identity checks in MERGE and INSERT ... ON CONFLICT DO UPDATE (Zhijie Hou) § § §
If MERGE may require update or delete actions, and the target table publishes updates or deletes, insist that it have a REPLICA IDENTITY defined. Failing to require this can silently break replication. Likewise, INSERT with an UPDATE option must require REPLICA IDENTITY if the target table publishes either inserts or updates.
Avoid deadlock during DROP SUBSCRIPTION when publisher is on the same server as subscriber (Dilip Kumar) §
Fix incorrect reporting of replication lag in pg_stat_replication view (Fujii Masao) §
If any standby server's replay LSN stopped advancing, the write_lag and flush_lag columns would eventually stop updating.
Avoid duplicative log messages about invalid primary_slot_name settings (Fujii Masao) §
Remove the unfinished slot state file after failing to write a replication slot's state to disk (Michael Paquier) §
\nPreviously, a failure such as out-of-disk-space resulted in leaving a temporary state.tmp file behind. That's problematic because it would block all subsequent attempts to write the state, requiring manual intervention to clean up.
Avoid unwanted WAL receiver shutdown when switching from streaming to archive WAL source (Xuneng Zhou) §
\nDuring a timeline change, a standby server's WAL receiver should remain alive, waiting for a new WAL streaming start point. Instead it was repeatedly shutting down and immediately getting restarted, which could confuse status monitoring code.
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Some code paths were capable of running for a long time without checking for interrupts.
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Make contrib/pgstattuple more robust about empty or invalid index pages (Nitin Motiani) §
Count all-zero pages as free space, and ignore pages that are invalid according to a check of the page's special-space size. The code for btree indexes already counted all-zero pages as free, but the hash and gist code would error out, which has been found to be much less user-friendly. Similarly, make all three cases agree on ignoring corrupted pages rather than throwing errors.
", "text": "Make contrib/pgstattuple more robust about empty or invalid index pages (Nitin Motiani) § Count all-zero pages as free space, and ignore pages that are invalid according to a check of the page's special-space size. The code for btree indexes already counted all-zero pages as free, but the hash and gist code would error out, which has been found to be much less user-friendly. 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\nWe supposed that __atomic_thread_fence() is a sufficient barrier to prevent the C compiler from re-ordering memory accesses around it, but it appears that that's not true for Clang, allowing it to generate incorrect code for at least RISC-V, MIPS, and LoongArch machines. Add explicit compiler barriers to fix that.
Fix building with LLVM version 21 and later (Holger Hoffstätte) §
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