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Preserve the replica identity properties of indexes rewritten by ALTER TABLE (Quan Zongliang, Peter Eisentraut)
Lock objects sooner during DROP OWNED BY (Álvaro Herrera)
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\nThis would only be an issue with index opclasses that have unusual notions of equality, but it's wrong in theory, so check.
", "text": "Ensure that unique indexes over partitioned tables match the equality semantics of the partitioning key (Guancheng Luo) This would only be an issue with index opclasses that have unusual notions of equality, but it's wrong in theory, so check.", "title": "Ensure that unique indexes over partitioned tables match the equality semantics of the partitioning key", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/11.8/#id-1.11.6.19.5", "source_hash": "dd02baf946a9c94fcc16630800a4d069c3bc048d9a123f73752e023305e60088", "section_path": ["Changes"], "commit_groups": [["501b01879", "76ddc88f4", "76ea60696"]], "identity_text": "Ensure that unique indexes over partitioned tables match the equality semantics of the partitioning key (Guancheng Luo) This would only be an issue with index opclasses that have unusual notions of equality, but it's wrong in theory, so check.", "commit_aliases": ["501b01879", "76ddc88f4", "76ea60696"], "source_commits": ["76ddc88f4"], "source_entry_id": "11.8/changes/007", "db_id": "92c422aa37a4e8d51c736f70cb3f98e0", "patch_ids": ["e6489d18739dd19993007478b8bcb4a4"], "statement_hash": "8798ba3c84429dc46d54e4887005376904b7e56901930de1d8d9027b00234b91", "relations": [{"rule": 2, "type": "equivalent", "target": "c9e14588094d7a8fb137f98b59979348", "evidence": {"same_day": true, "patch_ids": ["e6489d18739dd19993007478b8bcb4a4"], "statement_hash": "8798ba3c84429dc46d54e4887005376904b7e56901930de1d8d9027b00234b91"}}], "version": "11.8", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "c9e14588094d7a8fb137f98b59979348", "kind": "equivalent", "version": "12.3", "label": "12.3", "title": "Ensure that unique indexes over partitioned tables match the equality semantics of the partitioning key", "evidence": {"same_day": true, "patch_ids": ["e6489d18739dd19993007478b8bcb4a4"], "statement_hash": "8798ba3c84429dc46d54e4887005376904b7e56901930de1d8d9027b00234b91"}, "url": "/docs/compare/?release=12.3#12.3-f9d861fbfff21335", "source_url": "/docs/release/12.3/#id-1.11.6.25.5"}]}, {"id": "11.8-c340fc4014999147", "cves": [], "html": "Ensure that members of the pg_read_all_stats role can read all statistics views, as expected (Magnus Hagander)
The functions underlying the pg_stat_progress_* views had not gotten this memo.
Repair performance regression in information_schema.triggers view (Tom Lane)
This patch redefines that view so that an outer WHERE clause constraining the table name can be pushed down into the view, allowing its calculations to be done only for triggers belonging to the table of interest rather than all triggers in the database. In a database with many triggers this would make a significant speed difference for queries of that form. Since things worked that way before v11, this is a potential performance regression. Users who find this to be a problem can fix it by replacing the view definition (or, perhaps, just deleting and reinstalling the whole information_schema schema).
Fix full text search to handle NOT above a phrase search correctly (Tom Lane)
\nQueries such as !(foo<->bar) failed to find matching rows when implemented as a GiST or GIN index search.
Fix full text search for cases where a phrase search includes an item with both prefix matching and a weight restriction (Tom Lane)
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Fix bugs in gin_fuzzy_search_limit processing (Adé Heyward, Tom Lane)
A small value of gin_fuzzy_search_limit could result in unexpected slowness due to unintentionally rescanning the same index page many times. Another code path failed to apply the intended filtering at all, possibly returning too many values.
Allow input of type circle to accept the format “(” as the documentation says it does (David Zhang)x,y),r
Make the get_bit() and set_bit() functions cope with bytea strings longer than 256MB (Movead Li)
Since the bit number argument is only int4, it's impossible to use these functions to access bits beyond the first 256MB of a long bytea. We'll widen the argument to int8 in v13, but in the meantime, allow these functions to work on the initial substring of a long bytea.
Ignore file-not-found errors in pg_ls_waldir() and allied functions (Tom Lane)
This prevents a race condition failure if a file is removed between when we see its directory entry and when we attempt to stat() it.
Avoid possibly leaking an open-file descriptor for a directory in pg_ls_dir(), pg_timezone_names(), pg_tablespace_databases(), and allied functions (Justin Pryzby)
Fix polymorphic-function type resolution to correctly infer the actual type of an anyarray output when given only an anyrange input (Tom Lane)
Avoid leakage of a hashed subplan's hash tables across multiple executions (Andreas Karlsson, Tom Lane)
\nThis mistake could result in severe memory bloat if a query re-executed a hashed subplan enough times.
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Fix low-probability crash after constraint violation errors in partitioned tables (Andres Freund)
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Fix reporting of elapsed time for heap truncation steps in VACUUM VERBOSE (Tatsuhito Kasahara)
Fix possible undercounting of deleted B-tree index pages in VACUUM VERBOSE output (Peter Geoghegan)
Fix wrong bookkeeping for oldest deleted page in a B-tree index (Peter Geoghegan)
\nThis could cause subtly wrong decisions about when VACUUM can skip an index cleanup scan; although it appears there may be no significant user-visible effects from that.
Ensure that TimelineHistoryRead and TimelineHistoryWrite wait states are reported in all code paths that read or write timeline history files (Masahiro Ikeda)
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", "text": "Avoid possibly showing “waiting” twice in a process's PS status (Masahiko Sawada)", "title": "Avoid possibly showing “waiting” twice in a process's PS status", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/11.8/#id-1.11.6.19.5", "source_hash": "6e9e8db344a83e623a181aa17c8d6a654a1033a2bbe85cb1a4118024e762f269", "section_path": ["Changes"], "commit_groups": [["17d3fcdc3", "82c04e483", "c9a47b81e", "d1b414e7e", "e54183cb0", "e9c4eaacd"]], "identity_text": "Avoid possibly showing waiting twice in a process's PS status (Masahiko Sawada)", "commit_aliases": ["17d3fcdc3", "82c04e483", "c9a47b81e", "d1b414e7e", "e54183cb0", "e9c4eaacd"], "source_commits": ["e54183cb0"], "source_entry_id": "11.8/changes/027", "db_id": "9c38c588942a2de8ba8e7fb0147649d5", "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea", "relations": [{"rule": 2, "type": "equivalent", "target": "22918bbd723838fd326c43f73db0beb2", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}}, {"rule": 2, "type": "equivalent", "target": "4e3a1a2456aba94194356a01413e3114", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}}, {"rule": 2, "type": "equivalent", "target": "bc7286641728a1efd19e31a44b3cd6a2", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}}, {"rule": 2, "type": "equivalent", "target": "d90ea1969e6efed6f293f894e2b16d72", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}}], "version": "11.8", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "4e3a1a2456aba94194356a01413e3114", "kind": "equivalent", "version": "12.3", "label": "12.3", "title": "Avoid possibly showing “waiting” twice in a process's PS status", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}, "url": "/docs/compare/?release=12.3#12.3-43091f93f1eb20ec", "source_url": "/docs/release/12.3/#id-1.11.6.25.5"}, {"db_id": "22918bbd723838fd326c43f73db0beb2", "kind": "equivalent", "version": "10.13", "label": "10.13", "title": "Avoid possibly showing “waiting” twice in a process's PS status", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}, "url": "/docs/compare/?release=10.13#10.13-0412ac2c2b9ed04e", "source_url": "/docs/release/10.13/#id-1.11.6.15.5"}, {"db_id": "d90ea1969e6efed6f293f894e2b16d72", "kind": "equivalent", "version": "9.6.18", "label": "9.6.18", "title": "Avoid possibly showing \"waiting\" twice in a process's PS status", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}, "url": "/docs/compare/?release=9.6.18#9.6.18-907e667940bc6dac", "source_url": "/docs/release/9.6.18/#AEN132932"}, {"db_id": "bc7286641728a1efd19e31a44b3cd6a2", "kind": "equivalent", "version": "9.5.22", "label": "9.5.22", "title": "Avoid possibly showing \"waiting\" twice in a process's PS status", "evidence": {"same_day": true, "patch_ids": ["8cc2e23b39efb918497ce937a490afc6"], "statement_hash": "b2492270143de8c203a1998678437872e10fd4d369ec3ee00abba52e19fa69ea"}, "url": "/docs/compare/?release=9.5.22#9.5.22-907e667940bc6dac", "source_url": "/docs/release/9.5.22/#AEN127799"}]}, {"id": "11.8-8246786b7ab8a8cd", "cves": [], "html": "Avoid failure if autovacuum tries to access a just-dropped temporary schema (Tom Lane)
\nThis hazard only arises if a superuser manually drops a temporary schema; which isn't normal practice, but should work.
", "text": "Avoid failure if autovacuum tries to access a just-dropped temporary schema (Tom Lane) This hazard only arises if a superuser manually drops a temporary schema; which isn't normal practice, but should work.", "title": "Avoid failure if autovacuum tries to access a just-dropped temporary schema", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/11.8/#id-1.11.6.19.5", "source_hash": "03a54f708f4e3a518df158500f934bb856561496ce34431867c043cc422abf43", "section_path": ["Changes"], "commit_groups": [["7ea20a2bc", "80d76be51", "d7684c38a"]], "identity_text": "Avoid failure if autovacuum tries to access a just-dropped temporary schema (Tom Lane) This hazard only arises if a superuser manually drops a temporary schema; which isn't normal practice, but should work.", "commit_aliases": ["7ea20a2bc", "80d76be51", "d7684c38a"], "source_commits": ["7ea20a2bc"], "source_entry_id": "11.8/changes/028", "db_id": "2417131ff80098f64937fac19ed092f7", "patch_ids": ["a65ec24e200f282fcfef49ab178234a5"], "statement_hash": "e16761537b7277da3cfc202aecfb4df2205fd14c91dc2edf1ab545da154ba366", "relations": [{"rule": 2, "type": "equivalent", "target": "9c518a09c87a41fecfd56b8ad539f159", "evidence": {"same_day": true, "patch_ids": ["a65ec24e200f282fcfef49ab178234a5"], "statement_hash": "e16761537b7277da3cfc202aecfb4df2205fd14c91dc2edf1ab545da154ba366"}}], "version": "11.8", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "9c518a09c87a41fecfd56b8ad539f159", "kind": "equivalent", "version": "12.3", "label": "12.3", "title": "Avoid failure if autovacuum tries to access a just-dropped temporary schema", "evidence": {"same_day": true, "patch_ids": ["a65ec24e200f282fcfef49ab178234a5"], "statement_hash": "e16761537b7277da3cfc202aecfb4df2205fd14c91dc2edf1ab545da154ba366"}, "url": "/docs/compare/?release=12.3#12.3-62b79f744258b96c", "source_url": "/docs/release/12.3/#id-1.11.6.25.5"}]}, {"id": "11.8-5fc15f28085aea11", "cves": [], "html": "Avoid premature recycling of WAL segments during crash recovery (Jehan-Guillaume de Rorthais)
\nWAL segments that become ready to be archived during crash recovery were potentially recycled without being archived.
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\nThis can eliminate many attempts to fetch non-existent WAL files from archive storage, which is helpful if archive access is slow.
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\nThis condition is legitimately reachable in various scenarios, so remove the check.
", "text": "Remove bogus “subtransaction logged without previous top-level txn record” error check in logical decoding (Arseny Sher, Amit Kapila) This condition is legitimately reachable in various scenarios, so remove the check.", "title": "Remove bogus “subtransaction logged without previous top-level txn record” error check in logical decoding", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/11.8/#id-1.11.6.19.5", "source_hash": "d04db0c135e8d1d98fb7705903f289af2953020be50ae1c71657710a3843ac8e", "section_path": ["Changes"], "commit_groups": [["05555f7aa", "59112f235", "59c1a03f0", "b448aa441", "bff456d7a", "e3ff789ac"]], "identity_text": "Remove bogus subtransaction logged without previous top-level txn record error check in logical decoding (Arseny Sher, Amit Kapila) This condition is legitimately reachable in various scenarios, so remove the check.", "commit_aliases": ["05555f7aa", "59112f235", "59c1a03f0", "b448aa441", "bff456d7a", "e3ff789ac"], "source_commits": ["bff456d7a"], "source_entry_id": "11.8/changes/031", "db_id": "013381b18e4797fb6c20449ccad2be10", "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25", "relations": [{"rule": 2, "type": "equivalent", "target": "091f71c96c354f4647b9ebc343fb55a9", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}}, {"rule": 2, "type": "equivalent", "target": "dbd2f9061c003f5c98a421520d57c263", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}}, {"rule": 2, "type": "equivalent", "target": "e6f4e104e82b45a8ae35c2ce2581b76f", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}}, {"rule": 2, "type": "equivalent", "target": "f1e4dd966202377068b8ccf850797012", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}}], "version": "11.8", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "091f71c96c354f4647b9ebc343fb55a9", "kind": "equivalent", "version": "12.3", "label": "12.3", "title": "Remove bogus “subtransaction logged without previous top-level txn record” error check in logical decoding", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}, "url": "/docs/compare/?release=12.3#12.3-22c28a3d58382dfb", "source_url": "/docs/release/12.3/#id-1.11.6.25.5"}, {"db_id": "e6f4e104e82b45a8ae35c2ce2581b76f", "kind": "equivalent", "version": "10.13", "label": "10.13", "title": "Remove bogus “subtransaction logged without previous top-level txn record” error check in logical decoding", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}, "url": "/docs/compare/?release=10.13#10.13-ea5f9b852b703137", "source_url": "/docs/release/10.13/#id-1.11.6.15.5"}, {"db_id": "dbd2f9061c003f5c98a421520d57c263", "kind": "equivalent", "version": "9.6.18", "label": "9.6.18", "title": "Remove bogus \"subtransaction logged without previous top-level txn record\" error check in logical decoding", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}, "url": "/docs/compare/?release=9.6.18#9.6.18-cc31713f1acb29d6", "source_url": "/docs/release/9.6.18/#AEN132932"}, {"db_id": "f1e4dd966202377068b8ccf850797012", "kind": "equivalent", "version": "9.5.22", "label": "9.5.22", "title": "Remove bogus \"subtransaction logged without previous top-level txn record\" error check in logical decoding", "evidence": {"same_day": true, "patch_ids": ["47911020be76b484c25bd78c8fe351b6"], "statement_hash": "7064bb1ed3eb9ee61c0bc38570e493d8d4fb28a533ec04bf9a03eb9166236b25"}, "url": "/docs/compare/?release=9.5.22#9.5.22-cc31713f1acb29d6", "source_url": "/docs/release/9.5.22/#AEN127799"}]}, {"id": "11.8-f69ea410286115fd", "cves": [], "html": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths (Pavan Deolasee)
This could result in a walsender later becoming stuck waiting for the lock.
", "text": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths (Pavan Deolasee) This could result in a walsender later becoming stuck waiting for the lock.", "title": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/11.8/#id-1.11.6.19.5", "source_hash": "3c9c95224f594934b2d722bd26c89302864785795360d8cd2665af9c3dd33ac0", "section_path": ["Changes"], "commit_groups": [["038c9bbe9", "250041a56", "3dcaea4b0", "72b2b9c52", "a9d9bdd3a", "d278d4e1a"], ["223e9c77d", "2d8597ba6", "49bf81536", "ba4cc05ce", "ce28a43ff", "f36a10434"]], "identity_text": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths (Pavan Deolasee) This could result in a walsender later becoming stuck waiting for the lock.", "commit_aliases": ["038c9bbe9", "223e9c77d", "250041a56", "2d8597ba6", "3dcaea4b0", "49bf81536", "72b2b9c52", "a9d9bdd3a", "ba4cc05ce", "ce28a43ff", "d278d4e1a", "f36a10434"], "source_commits": ["250041a56", "ba4cc05ce"], "source_entry_id": "11.8/changes/032", "db_id": "49e6106f1b8c589675911ae6e8114480", "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3", "relations": [{"rule": 2, "type": "equivalent", "target": "8d5b02d64733f6ae2be77f9406700aca", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}}, {"rule": 2, "type": "equivalent", "target": "a09a60a9acd28901f8e195523cbf8280", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}}, {"rule": 2, "type": "equivalent", "target": "aefd8832d249a50994aafa4483e439d2", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}}, {"rule": 2, "type": "equivalent", "target": "b7a2a434b31db8fe9d51a32ffdcbd2c9", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}}], "version": "11.8", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "8d5b02d64733f6ae2be77f9406700aca", "kind": "equivalent", "version": "12.3", "label": "12.3", "title": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}, "url": "/docs/compare/?release=12.3#12.3-2b91a72492c7f156", "source_url": "/docs/release/12.3/#id-1.11.6.25.5"}, {"db_id": "aefd8832d249a50994aafa4483e439d2", "kind": "equivalent", "version": "10.13", "label": "10.13", "title": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}, "url": "/docs/compare/?release=10.13#10.13-f69ea410286115fd", "source_url": "/docs/release/10.13/#id-1.11.6.15.5"}, {"db_id": "b7a2a434b31db8fe9d51a32ffdcbd2c9", "kind": "equivalent", "version": "9.6.18", "label": "9.6.18", "title": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}, "url": "/docs/compare/?release=9.6.18#9.6.18-f69ea410286115fd", "source_url": "/docs/release/9.6.18/#AEN132932"}, {"db_id": "a09a60a9acd28901f8e195523cbf8280", "kind": "equivalent", "version": "9.5.22", "label": "9.5.22", "title": "Ensure that a replication slot's io_in_progress_lock is released in failure code paths", "evidence": {"same_day": true, "patch_ids": ["073769dfbdef30ab82ee4a086842dae7", "250c289a57b7e94fadf518914341b9aa"], "statement_hash": "fe35fa7ec988e0c03d34cc7fb21c8134735fe9ad2a4b82cdd5aea88145d85cf3"}, "url": "/docs/compare/?release=9.5.22#9.5.22-f69ea410286115fd", "source_url": "/docs/release/9.5.22/#AEN127799"}]}, {"id": "11.8-acc5cb5d870d8dc8", "cves": [], "html": "Fix race conditions in synchronous standby management (Tom Lane)
\nDuring a change in the synchronous_standby_names setting, there was a window in which wrong decisions could be made about whether it is OK to release transactions that are waiting for synchronous commit. Another hazard for similarly wrong decisions existed if a walsender process exited and was immediately replaced by another.
Ensure nextXid can't go backwards on a standby server (Eka Palamadai)
This race condition could allow incorrect hot standby feedback messages to be sent back to the primary server, potentially allowing VACUUM to run too soon on the primary.
Add missing SQLSTATE values to a few error reports (Sawada Masahiko)
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Fix cache reference leak in contrib/sepgsql (Michael Luo)
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\nThis change could break build processes that try to make PostgreSQL use a non-default version of libxml2 by putting that version's xml2-config into the PATH. Instead, set XML2_CONFIG to point to the non-default xml2-config. That method will work with either older or newer PostgreSQL releases.
In MSVC builds, cope with spaces in the path name for Python (Victor Wagner)
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\nThe America/Godthab zone has been renamed to America/Nuuk to reflect current English usage; however, the old name remains available as a compatibility link.
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