A dump/restore is not required for those running 9.2.X.
\nHowever, if you use foreign data servers that make use of user passwords for authentication, see the first changelog entry below.
\nAlso, if you are upgrading from a version earlier than 9.2.20, see Section E.5.
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\nAlso, if you are upgrading from a version earlier than 9.2.20, see Section E.5.
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\nBy itself, this patch will only fix the behavior in newly initdb'd databases. If you wish to apply this change in an existing database, follow the corrected procedure shown in the changelog entry for CVE-2017-7547, in Section E.3.
", "text": "Restrict visibility of pg_user_mappings.umoptions, to protect passwords stored as user mapping options (Michael Paquier, Feike Steenbergen) The previous coding allowed the owner of a foreign server object, or anyone he has granted server USAGE permission to, to see the options for all user mappings associated with that server. This might well include passwords for other users. Adjust the view definition to match the behavior of information_schema.user_mapping_options, namely that these options are visible to the user being mapped, or if the mapping is for PUBLIC and the current user is the server owner, or if the current user is a superuser. (CVE-2017-7486) By itself, this patch will only fix the behavior in newly initdb'd databases. If you wish to apply this change in an existing database, follow the corrected procedure shown in the changelog entry for CVE-2017-7547, in Section E.3.", "title": "Restrict visibility of pg_user_mappings.umoptions, to protect passwords stored as user mapping options", "commits": [], "section": "Changes", "category": "security", "source_url": "/docs/release/9.2.21/#AEN111124", "source_hash": "65b8001604980b0f81343a7356c2e152376ca43363b708ab58460c7feca09bf9", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Restrict visibility of pg_user_mappings.umoptions, to protect passwords stored as user mapping options (Michael Paquier, Feike Steenbergen) The previous coding allowed the owner of a foreign server object, or anyone he has granted server USAGE permission to, to see the options for all user mappings associated with that server. This might well include passwords for other users. Adjust the view definition to match the behavior of information_schema.user_mapping_options, namely that these options are visible to the user being mapped, or if the mapping is for PUBLIC and the current user is the server owner, or if the current user is a superuser. (CVE-2017-7486) By itself, this patch will only fix the behavior in newly initdb'd databases. If you wish to apply this change in an existing database, follow the corrected procedure shown in the changelog entry for CVE-2017-7547, in release-9-2-22 .", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.21/changes/001", "db_id": "e05b9caef4e15652fbd82e7d0130bee4", "patch_ids": [], "statement_hash": "777b0706b25c8850ff7fe79009c9e873f08a7c68de6d14e321356f0a0a372853", "relations": [], "version": "9.2.21", "category_label": "Security", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.2.21-87eaa9ade53cb66b", "cves": ["CVE-2017-7484"], "html": "Prevent exposure of statistical information via leaky operators (Peter Eisentraut)
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", "text": "Prevent exposure of statistical information via leaky operators (Peter Eisentraut) Some selectivity estimation functions in the planner will apply user-defined operators to values obtained from pg_statistic, such as most common values and histogram entries. This occurs before table permissions are checked, so a nefarious user could exploit the behavior to obtain these values for table columns he does not have permission to read. To fix, fall back to a default estimate if the operator's implementation function is not certified leak-proof and the calling user does not have permission to read the table column whose statistics are needed. At least one of these criteria is satisfied in most cases in practice. (CVE-2017-7484)", "title": "Prevent exposure of statistical information via leaky operators", "commits": [], "section": "Changes", "category": "security", "source_url": "/docs/release/9.2.21/#AEN111124", "source_hash": "356e17300fb0d7c39d849c640fb723d9912eccd029bddcce89fc02f4e526c904", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Prevent exposure of statistical information via leaky operators (Peter Eisentraut) Some selectivity estimation functions in the planner will apply user-defined operators to values obtained from pg_statistic, such as most common values and histogram entries. This occurs before table permissions are checked, so a nefarious user could exploit the behavior to obtain these values for table columns he does not have permission to read. To fix, fall back to a default estimate if the operator's implementation function is not certified leak-proof and the calling user does not have permission to read the table column whose statistics are needed. At least one of these criteria is satisfied in most cases in practice. (CVE-2017-7484)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.21/changes/002", "db_id": "828d8b499b868526013825cd04ce744e", "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938", "relations": [{"rule": 2, "type": "equivalent", "target": "55ae062c0da94da274405a272c224d04", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}}, {"rule": 2, "type": "equivalent", "target": "b4b75c05a5ed8817af23933ab3fcec8f", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}}, {"rule": 2, "type": "equivalent", "target": "bf395c1f6a9c6ae6f5fb7af55beb6d79", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}}, {"rule": 2, "type": "equivalent", "target": "f34602fe908d4a966c6ed06935e1f04d", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}}], "version": "9.2.21", "category_label": "Security", "also_in": [], "variants": [], "related_changes": [{"db_id": "f34602fe908d4a966c6ed06935e1f04d", "kind": "equivalent", "version": "9.6.3", "label": "9.6.3", "title": "Prevent exposure of statistical information via leaky operators", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}, "url": "/docs/compare/?release=9.6.3#9.6.3-87eaa9ade53cb66b", "source_url": "/docs/release/9.6.3/#AEN135466"}, {"db_id": "bf395c1f6a9c6ae6f5fb7af55beb6d79", "kind": "equivalent", "version": "9.5.7", "label": "9.5.7", "title": "Prevent exposure of statistical information via leaky operators", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}, "url": "/docs/compare/?release=9.5.7#9.5.7-87eaa9ade53cb66b", "source_url": "/docs/release/9.5.7/#AEN130075"}, {"db_id": "55ae062c0da94da274405a272c224d04", "kind": "equivalent", "version": "9.4.12", "label": "9.4.12", "title": "Prevent exposure of statistical information via leaky operators", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}, "url": "/docs/compare/?release=9.4.12#9.4.12-87eaa9ade53cb66b", "source_url": "/docs/release/9.4.12/#AEN121715"}, {"db_id": "b4b75c05a5ed8817af23933ab3fcec8f", "kind": "equivalent", "version": "9.3.17", "label": "9.3.17", "title": "Prevent exposure of statistical information via leaky operators", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2302fdc9ede25dd70923fd1e8d3e93edc77b192bd27593b4221b2a1ac089c938"}, "url": "/docs/compare/?release=9.3.17#9.3.17-87eaa9ade53cb66b", "source_url": "/docs/release/9.3.17/#AEN116096"}]}, {"id": "9.2.21-713a97279226cff7", "cves": [], "html": "Fix possible corruption of \"init forks\" of unlogged indexes (Robert Haas, Michael Paquier)
\nThis could result in an unlogged index being set to an invalid state after a crash and restart. Such a problem would persist until the index was dropped and rebuilt.
", "text": "Fix possible corruption of \"init forks\" of unlogged indexes (Robert Haas, Michael Paquier) This could result in an unlogged index being set to an invalid state after a crash and restart. Such a problem would persist until the index was dropped and rebuilt.", "title": "Fix possible corruption of \"init forks\" of unlogged indexes", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.2.21/#AEN111124", "source_hash": "97489d0a9aa069ca4c56582f52bc241c0a19dfe8b5ae4cc8a5b775d69e0d83a8", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix possible corruption of init forks of unlogged indexes (Robert Haas, Michael Paquier) This could result in an unlogged index being set to an invalid state after a crash and restart. Such a problem would persist until the index was dropped and rebuilt.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.21/changes/003", "db_id": "78b68e1b952f1ca693a0b48ee6e72d22", "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95", "relations": [{"rule": 2, "type": "equivalent", "target": "3cd432e6bf2afd9768a1ca6668a16b11", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}}, {"rule": 2, "type": "equivalent", "target": "4211c712a1cafeeda59a3774d3215bb6", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}}, {"rule": 2, "type": "equivalent", "target": "bd24590e475333f4790f5fe53c61411a", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}}, {"rule": 2, "type": "equivalent", "target": "ca9e7897b0b819057bd22c3e412c2a31", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}}], "version": "9.2.21", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "ca9e7897b0b819057bd22c3e412c2a31", "kind": "equivalent", "version": "9.6.3", "label": "9.6.3", "title": "Fix possible corruption of \"init forks\" of unlogged indexes", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}, "url": "/docs/compare/?release=9.6.3#9.6.3-713a97279226cff7", "source_url": "/docs/release/9.6.3/#AEN135466"}, {"db_id": "bd24590e475333f4790f5fe53c61411a", "kind": "equivalent", "version": "9.5.7", "label": "9.5.7", "title": "Fix possible corruption of \"init forks\" of unlogged indexes", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}, "url": "/docs/compare/?release=9.5.7#9.5.7-713a97279226cff7", "source_url": "/docs/release/9.5.7/#AEN130075"}, {"db_id": "4211c712a1cafeeda59a3774d3215bb6", "kind": "equivalent", "version": "9.4.12", "label": "9.4.12", "title": "Fix possible corruption of \"init forks\" of unlogged indexes", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}, "url": "/docs/compare/?release=9.4.12#9.4.12-713a97279226cff7", "source_url": "/docs/release/9.4.12/#AEN121715"}, {"db_id": "3cd432e6bf2afd9768a1ca6668a16b11", "kind": "equivalent", "version": "9.3.17", "label": "9.3.17", "title": "Fix possible corruption of \"init forks\" of unlogged indexes", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "72154e11e8954b335d0bac05809c8026ca9489a2b55963899b1c9caca08b7e95"}, "url": "/docs/compare/?release=9.3.17#9.3.17-713a97279226cff7", "source_url": "/docs/release/9.3.17/#AEN116096"}]}, {"id": "9.2.21-e4a83b9f8d78bc1f", "cves": [], "html": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction (Tom Lane)
\nIn most cases this turned out to have no visible ill effects, but in corner cases it could result in circular references in pg_subtrans, potentially causing infinite loops in queries that examine rows modified by the two-phase transaction.
", "text": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction (Tom Lane) In most cases this turned out to have no visible ill effects, but in corner cases it could result in circular references in pg_subtrans, potentially causing infinite loops in queries that examine rows modified by the two-phase transaction.", "title": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.2.21/#AEN111124", "source_hash": "e98290481636176c1da6e93d34b3bbfd7ddea2672cb1edf5a47af918bf8505fe", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction (Tom Lane) In most cases this turned out to have no visible ill effects, but in corner cases it could result in circular references in pg_subtrans, potentially causing infinite loops in queries that examine rows modified by the two-phase transaction.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.21/changes/004", "db_id": "a3e69383f90c4a60d164e139ede77344", "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36", "relations": [{"rule": 2, "type": "equivalent", "target": "214a1b3821d5a36db45f6c05c6441387", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}}, {"rule": 2, "type": "equivalent", "target": "3a8a1634b4824238c9d0aaf6c493651e", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}}, {"rule": 2, "type": "equivalent", "target": "5565ced6b2c6375ed2a7adcb94929f22", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}}, {"rule": 2, "type": "equivalent", "target": "75c0cadf13ce21c94069e1147a75546c", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}}], "version": "9.2.21", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "214a1b3821d5a36db45f6c05c6441387", "kind": "equivalent", "version": "9.6.3", "label": "9.6.3", "title": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}, "url": "/docs/compare/?release=9.6.3#9.6.3-e4a83b9f8d78bc1f", "source_url": "/docs/release/9.6.3/#AEN135466"}, {"db_id": "75c0cadf13ce21c94069e1147a75546c", "kind": "equivalent", "version": "9.5.7", "label": "9.5.7", "title": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}, "url": "/docs/compare/?release=9.5.7#9.5.7-e4a83b9f8d78bc1f", "source_url": "/docs/release/9.5.7/#AEN130075"}, {"db_id": "5565ced6b2c6375ed2a7adcb94929f22", "kind": "equivalent", "version": "9.4.12", "label": "9.4.12", "title": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}, "url": "/docs/compare/?release=9.4.12#9.4.12-e4a83b9f8d78bc1f", "source_url": "/docs/release/9.4.12/#AEN121715"}, {"db_id": "3a8a1634b4824238c9d0aaf6c493651e", "kind": "equivalent", "version": "9.3.17", "label": "9.3.17", "title": "Fix incorrect reconstruction of pg_subtrans entries when a standby server replays a prepared but uncommitted two-phase transaction", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "1646bb71052a636d7ea91585c578d6b36f95ecebe2e215e01cef7972ed52fa36"}, "url": "/docs/compare/?release=9.3.17#9.3.17-e4a83b9f8d78bc1f", "source_url": "/docs/release/9.3.17/#AEN116096"}]}, {"id": "9.2.21-c9328ee99c42c738", "cves": [], "html": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL (Julien Rouhaud, Tom Lane)
\nDue to lack of a cache flush step between commands in an extension script file, non-utility queries might not see the effects of an immediately preceding catalog change, such as ALTER TABLE ... RENAME.
", "text": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL (Julien Rouhaud, Tom Lane) Due to lack of a cache flush step between commands in an extension script file, non-utility queries might not see the effects of an immediately preceding catalog change, such as ALTER TABLE ... RENAME.", "title": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.2.21/#AEN111124", "source_hash": "984c9075ece4152f93a8def878c245a5a7c6c0a06a3b0ce8a96ac799da243115", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL (Julien Rouhaud, Tom Lane) Due to lack of a cache flush step between commands in an extension script file, non-utility queries might not see the effects of an immediately preceding catalog change, such as ALTER TABLE ... RENAME.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.21/changes/005", "db_id": "091e27d5a961049388f50641f611f375", "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210", "relations": [{"rule": 2, "type": "equivalent", "target": "0d4f2f20b3107b81483a53a687d59d55", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}}, {"rule": 2, "type": "equivalent", "target": "1a7d8686c8e50760b935ef10ee916805", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}}, {"rule": 2, "type": "equivalent", "target": "5ceac09fd9d4bab483dfd2a50194800a", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}}, {"rule": 2, "type": "equivalent", "target": "8b609346c52066839e272fc58725e644", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}}], "version": "9.2.21", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "1a7d8686c8e50760b935ef10ee916805", "kind": "equivalent", "version": "9.6.3", "label": "9.6.3", "title": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}, "url": "/docs/compare/?release=9.6.3#9.6.3-c9328ee99c42c738", "source_url": "/docs/release/9.6.3/#AEN135466"}, {"db_id": "0d4f2f20b3107b81483a53a687d59d55", "kind": "equivalent", "version": "9.5.7", "label": "9.5.7", "title": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}, "url": "/docs/compare/?release=9.5.7#9.5.7-c9328ee99c42c738", "source_url": "/docs/release/9.5.7/#AEN130075"}, {"db_id": "8b609346c52066839e272fc58725e644", "kind": "equivalent", "version": "9.4.12", "label": "9.4.12", "title": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}, "url": "/docs/compare/?release=9.4.12#9.4.12-c9328ee99c42c738", "source_url": "/docs/release/9.4.12/#AEN121715"}, {"db_id": "5ceac09fd9d4bab483dfd2a50194800a", "kind": "equivalent", "version": "9.3.17", "label": "9.3.17", "title": "Ensure parsing of queries in extension scripts sees the results of immediately-preceding DDL", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "7cd007e80d6ca53d427cc836baf56b899b99eb8558570ed85e8ed98e90181210"}, "url": "/docs/compare/?release=9.3.17#9.3.17-c9328ee99c42c738", "source_url": "/docs/release/9.3.17/#AEN116096"}]}, {"id": "9.2.21-59c256fd7f157862", "cves": [], "html": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index (Noah Misch)
\nThe command failed if the calling user did not currently have CREATE privilege for the tablespace containing the index. That behavior seems unhelpful, so skip the check, allowing the index to be rebuilt where it is.
", "text": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index (Noah Misch) The command failed if the calling user did not currently have CREATE privilege for the tablespace containing the index. That behavior seems unhelpful, so skip the check, allowing the index to be rebuilt where it is.", "title": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.2.21/#AEN111124", "source_hash": "af8c71b5295519e056fae5be3fa25978e42be4bf8a28c1677c9ecf324362802e", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index (Noah Misch) The command failed if the calling user did not currently have CREATE privilege for the tablespace containing the index. That behavior seems unhelpful, so skip the check, allowing the index to be rebuilt where it is.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.2.21/changes/006", "db_id": "c38965b3989e4d845a4faf6c853a63b2", "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d", "relations": [{"rule": 2, "type": "equivalent", "target": "18c29c84842d816ad4eb40f996fba562", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}}, {"rule": 2, "type": "equivalent", "target": "4e28fe4f9a051cff71b36536cbe0197c", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}}, {"rule": 2, "type": "equivalent", "target": "e56aa9bff7867a1f9479bee0dc1ff003", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}}, {"rule": 2, "type": "equivalent", "target": "ed422045ecccee371ff7ba838d17ba51", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}}], "version": "9.2.21", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "18c29c84842d816ad4eb40f996fba562", "kind": "equivalent", "version": "9.6.3", "label": "9.6.3", "title": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}, "url": "/docs/compare/?release=9.6.3#9.6.3-59c256fd7f157862", "source_url": "/docs/release/9.6.3/#AEN135466"}, {"db_id": "ed422045ecccee371ff7ba838d17ba51", "kind": "equivalent", "version": "9.5.7", "label": "9.5.7", "title": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}, "url": "/docs/compare/?release=9.5.7#9.5.7-59c256fd7f157862", "source_url": "/docs/release/9.5.7/#AEN130075"}, {"db_id": "4e28fe4f9a051cff71b36536cbe0197c", "kind": "equivalent", "version": "9.4.12", "label": "9.4.12", "title": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}, "url": "/docs/compare/?release=9.4.12#9.4.12-59c256fd7f157862", "source_url": "/docs/release/9.4.12/#AEN121715"}, {"db_id": "e56aa9bff7867a1f9479bee0dc1ff003", "kind": "equivalent", "version": "9.3.17", "label": "9.3.17", "title": "Skip tablespace privilege checks when ALTER TABLE ... ALTER COLUMN TYPE rebuilds an existing index", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e3c9d71ababcb3e97b2d38558157f78acc3278e6fa2b08f35fd85bc457ef276d"}, "url": "/docs/compare/?release=9.3.17#9.3.17-59c256fd7f157862", "source_url": "/docs/release/9.3.17/#AEN116096"}]}, {"id": "9.2.21-e175fb06a3203f9a", "cves": [], "html": "Fix ALTER TABLE ... VALIDATE CONSTRAINT to not recurse to child tables when the constraint is marked NO INHERIT (Amit Langote)
\nThis fix prevents unwanted \"constraint does not exist\" failures when no matching constraint is present in the child tables.
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\nThis tended to lead to underestimation of the number of tuples in the table. In the worst case of a small heavily-contended table, VACUUM could incorrectly report that the table contained no tuples, leading to very bad planning choices.
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