A dump/restore is not required for those running 9.1.X.
\nHowever, if you use the citext data type, and you upgraded from a previous major release by running pg_upgrade, you should run CREATE EXTENSION citext FROM unpackaged to avoid collation-related failures in citext operations. The same is necessary if you restore a dump from a pre-9.1 database that contains an instance of the citext data type. If you've already run the CREATE EXTENSION command before upgrading to 9.1.4, you will instead need to do manual catalog updates as explained in the third changelog item below.
\nAlso, if you are upgrading from a version earlier than 9.1.2, see Section E.23.
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\nHowever, if you use the citext data type, and you upgraded from a previous major release by running pg_upgrade, you should run CREATE EXTENSION citext FROM unpackaged to avoid collation-related failures in citext operations. The same is necessary if you restore a dump from a pre-9.1 database that contains an instance of the citext data type. If you've already run the CREATE EXTENSION command before upgrading to 9.1.4, you will instead need to do manual catalog updates as explained in the third changelog item below.
\nAlso, if you are upgrading from a version earlier than 9.1.2, see Section E.23.
", "compatibility_count": 0, "label": "9.1.4", "status_label": "Historical", "eol": "2016-10-27", "age_days": 5230, "support_days": -3624, "entries": [{"id": "9.1.4-e572f3b965c38e34", "cves": ["CVE-2012-2143"], "html": "Fix incorrect password transformation in contrib/pgcrypto's DES crypt() function (Solar Designer)
If a password string contained the byte value 0x80, the remainder of the password was ignored, causing the password to be much weaker than it appeared. With this fix, the rest of the string is properly included in the DES hash. Any stored password values that are affected by this bug will thus no longer match, so the stored values may need to be updated. (CVE-2012-2143)
", "text": "Fix incorrect password transformation in contrib/pgcrypto's DES crypt() function (Solar Designer) If a password string contained the byte value 0x80, the remainder of the password was ignored, causing the password to be much weaker than it appeared. With this fix, the rest of the string is properly included in the DES hash. Any stored password values that are affected by this bug will thus no longer match, so the stored values may need to be updated. (CVE-2012-2143)", "title": "Fix incorrect password transformation in contrib/pgcrypto's DES crypt() function", "commits": [], "section": "Changes", "category": "security", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "03a1260ee215d2a25cc1484b7103f4107390ddf678301f7bd1ceae282b0d55b1", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix incorrect password transformation in contrib/pgcrypto's DES crypt() function (Solar Designer) If a password string contained the byte value 0x80, the remainder of the password was ignored, causing the password to be much weaker than it appeared. With this fix, the rest of the string is properly included in the DES hash. Any stored password values that are affected by this bug will thus no longer match, so the stored values may need to be updated. (CVE-2012-2143)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/001", "db_id": "d1c9aa8a6e42b789d6b12bf1c19ff48d", "patch_ids": [], "statement_hash": "0f947a81af48a2bd27b30000bab97b036e134d06ee4907612bcff56b4d16f7aa", "relations": [{"rule": 2, "type": "equivalent", "target": "cb5920a7729a661d027d04e87378653a", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "0f947a81af48a2bd27b30000bab97b036e134d06ee4907612bcff56b4d16f7aa"}}], "version": "9.1.4", "category_label": "Security", "also_in": [], "variants": [], "related_changes": [{"db_id": "cb5920a7729a661d027d04e87378653a", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Fix incorrect password transformation in contrib/pgcrypto's DES crypt() function", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "0f947a81af48a2bd27b30000bab97b036e134d06ee4907612bcff56b4d16f7aa"}, "url": "/docs/compare/?release=9.0.8#9.0.8-e572f3b965c38e34", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-22abb084ee375aae", "cves": ["CVE-2012-2655"], "html": "Ignore SECURITY DEFINER and SET attributes for a procedural language's call handler (Tom Lane)
\nApplying such attributes to a call handler could crash the server. (CVE-2012-2655)
", "text": "Ignore SECURITY DEFINER and SET attributes for a procedural language's call handler (Tom Lane) Applying such attributes to a call handler could crash the server. (CVE-2012-2655)", "title": "Ignore SECURITY DEFINER and SET attributes for a procedural language's call handler", "commits": [], "section": "Changes", "category": "security", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "bbdb239a6841f1e9d3da8a3a37b3e91395b788f87fd1a80b91653ba2dd93352c", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Ignore SECURITY DEFINER and SET attributes for a procedural language's call handler (Tom Lane) Applying such attributes to a call handler could crash the server. (CVE-2012-2655)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/002", "db_id": "1e9aa9dadb7f705940e29fe92ef4e58c", "patch_ids": [], "statement_hash": "3a45f8c9f78d68b6bb81173d47eee8e0f3bfb011cdfceb55b611990b4bfde531", "relations": [{"rule": 2, "type": "equivalent", "target": "2dc791f135e8a00bb8117ee8ba9bbf9f", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "3a45f8c9f78d68b6bb81173d47eee8e0f3bfb011cdfceb55b611990b4bfde531"}}], "version": "9.1.4", "category_label": "Security", "also_in": [], "variants": [], "related_changes": [{"db_id": "2dc791f135e8a00bb8117ee8ba9bbf9f", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Ignore SECURITY DEFINER and SET attributes for a procedural language's call handler", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "3a45f8c9f78d68b6bb81173d47eee8e0f3bfb011cdfceb55b611990b4bfde531"}, "url": "/docs/compare/?release=9.0.8#9.0.8-22abb084ee375aae", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-e8202e40a2ac0405", "cves": [], "html": "Make contrib/citext's upgrade script fix collations of citext arrays and domains over citext (Tom Lane)
\nRelease 9.1.2 provided a fix for collations of citext columns and indexes in databases upgraded or reloaded from pre-9.1 installations, but that fix was incomplete: it neglected to handle arrays and domains over citext. This release extends the module's upgrade script to handle these cases. As before, if you have already run the upgrade script, you'll need to run the collation update commands by hand instead. See the 9.1.2 release notes for more information about doing this.
", "text": "Make contrib/citext's upgrade script fix collations of citext arrays and domains over citext (Tom Lane) Release 9.1.2 provided a fix for collations of citext columns and indexes in databases upgraded or reloaded from pre-9.1 installations, but that fix was incomplete: it neglected to handle arrays and domains over citext. This release extends the module's upgrade script to handle these cases. As before, if you have already run the upgrade script, you'll need to run the collation update commands by hand instead. See the 9.1.2 release notes for more information about doing this.", "title": "Make contrib/citext's upgrade script fix collations of citext arrays and domains over citext", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "12a9b14edfff3624036b615300f4a7d4a9af0eb6e62f322d70de46fdab3ce67b", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Make contrib/citext's upgrade script fix collations of citext arrays and domains over citext (Tom Lane) Release 9.1.2 provided a fix for collations of citext columns and indexes in databases upgraded or reloaded from pre-9.1 installations, but that fix was incomplete: it neglected to handle arrays and domains over citext. This release extends the module's upgrade script to handle these cases. As before, if you have already run the upgrade script, you'll need to run the collation update commands by hand instead. See the 9.1.2 release notes for more information about doing this.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/003", "db_id": "7a5054a2657a09e320d20c003f377cbe", "patch_ids": [], "statement_hash": "a079dead48e4f1a0b2dc5d0da6bfc73779eb2946f0679b82f06379567d148b63", "relations": [], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.1.4-a095d0662d392497", "cves": [], "html": "Allow numeric timezone offsets in timestamp input to be up to 16 hours away from UTC (Tom Lane)
\nSome historical time zones have offsets larger than 15 hours, the previous limit. This could result in dumped data values being rejected during reload.
", "text": "Allow numeric timezone offsets in timestamp input to be up to 16 hours away from UTC (Tom Lane) Some historical time zones have offsets larger than 15 hours, the previous limit. This could result in dumped data values being rejected during reload.", "title": "Allow numeric timezone offsets in timestamp input to be up to 16 hours away from UTC", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "095455017b66c55da7ed039aa3f5560a3263adfea20dda6aa302de82de828030", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Allow numeric timezone offsets in timestamp input to be up to 16 hours away from UTC (Tom Lane) Some historical time zones have offsets larger than 15 hours, the previous limit. This could result in dumped data values being rejected during reload.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/004", "db_id": "148a0e4a0398fc58c07421da3704ba28", "patch_ids": [], "statement_hash": "c3e3ec0ac5c3d36697ec4d7790092641fb62939d3e45a1ab5fb07e9627be88e7", "relations": [{"rule": 2, "type": "equivalent", "target": "66dfcc585e0253d76efafa427b1cfacf", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "c3e3ec0ac5c3d36697ec4d7790092641fb62939d3e45a1ab5fb07e9627be88e7"}}], "version": "9.1.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "66dfcc585e0253d76efafa427b1cfacf", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Allow numeric timezone offsets in timestamp input to be up to 16 hours away from UTC", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "c3e3ec0ac5c3d36697ec4d7790092641fb62939d3e45a1ab5fb07e9627be88e7"}, "url": "/docs/compare/?release=9.0.8#9.0.8-a095d0662d392497", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-6ac4ba6a4dabe8cd", "cves": [], "html": "Fix timestamp conversion to cope when the given time is exactly the last DST transition time for the current timezone (Tom Lane)
\nThis oversight has been there a long time, but was not noticed previously because most DST-using zones are presumed to have an indefinite sequence of future DST transitions.
", "text": "Fix timestamp conversion to cope when the given time is exactly the last DST transition time for the current timezone (Tom Lane) This oversight has been there a long time, but was not noticed previously because most DST-using zones are presumed to have an indefinite sequence of future DST transitions.", "title": "Fix timestamp conversion to cope when the given time is exactly the last DST transition time for the current timezone", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "dcb250ef64a23c07160dcef95f88732260b4bea6fb201bd5fc62375f81319c48", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix timestamp conversion to cope when the given time is exactly the last DST transition time for the current timezone (Tom Lane) This oversight has been there a long time, but was not noticed previously because most DST-using zones are presumed to have an indefinite sequence of future DST transitions.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/005", "db_id": "dba677f0792ea4293b27390098dc3d6d", "patch_ids": [], "statement_hash": "83fe48e3588100d31ea25ded9b792e4acf012f89a6827c2e26ad123c24092655", "relations": [{"rule": 2, "type": "equivalent", "target": "adbae31d5c047fe31754c449e1bbaa24", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "83fe48e3588100d31ea25ded9b792e4acf012f89a6827c2e26ad123c24092655"}}], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "adbae31d5c047fe31754c449e1bbaa24", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Fix timestamp conversion to cope when the given time is exactly the last DST transition time for the current timezone", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "83fe48e3588100d31ea25ded9b792e4acf012f89a6827c2e26ad123c24092655"}, "url": "/docs/compare/?release=9.0.8#9.0.8-6ac4ba6a4dabe8cd", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-854fede49eee61a3", "cves": [], "html": "Fix text to name and char to name casts to perform string truncation correctly in multibyte encodings (Karl Schnaitter)
", "text": "Fix text to name and char to name casts to perform string truncation correctly in multibyte encodings (Karl Schnaitter)", "title": "Fix text to name and char to name casts to perform string truncation correctly in multibyte encodings", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "b238c8128f334e29dd27f26a155f4798409dd546ad6a8b2118ce60dec4ea1779", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix text to name and char to name casts to perform string truncation correctly in multibyte encodings (Karl Schnaitter)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/006", "db_id": "d2cebd1f21edbebaa93a2a85740498f1", "patch_ids": [], "statement_hash": "2c91579c14e0421cc4befc73e67c9f3a6bdee231311a8a3f88da3cea2f6eaa05", "relations": [{"rule": 2, "type": "equivalent", "target": "b62ecf087122590c91da50302d70e3ff", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2c91579c14e0421cc4befc73e67c9f3a6bdee231311a8a3f88da3cea2f6eaa05"}}], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "b62ecf087122590c91da50302d70e3ff", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Fix text to name and char to name casts to perform string truncation correctly in multibyte encodings", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "2c91579c14e0421cc4befc73e67c9f3a6bdee231311a8a3f88da3cea2f6eaa05"}, "url": "/docs/compare/?release=9.0.8#9.0.8-854fede49eee61a3", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-55cd3108c9926c31", "cves": [], "html": "Fix memory copying bug in to_tsquery() (Heikki Linnakangas)
Ensure txid_current() reports the correct epoch when executed in hot standby (Simon Riggs)
Fix planner's handling of outer PlaceHolderVars within subqueries (Tom Lane)
\nThis bug concerns sub-SELECTs that reference variables coming from the nullable side of an outer join of the surrounding query. In 9.1, queries affected by this bug would fail with \"ERROR: Upper-level PlaceHolderVar found where not expected\". But in 9.0 and 8.4, you'd silently get possibly-wrong answers, since the value transmitted into the subquery wouldn't go to null when it should.
", "text": "Fix planner's handling of outer PlaceHolderVars within subqueries (Tom Lane) This bug concerns sub-SELECTs that reference variables coming from the nullable side of an outer join of the surrounding query. In 9.1, queries affected by this bug would fail with \"ERROR: Upper-level PlaceHolderVar found where not expected\". But in 9.0 and 8.4, you'd silently get possibly-wrong answers, since the value transmitted into the subquery wouldn't go to null when it should.", "title": "Fix planner's handling of outer PlaceHolderVars within subqueries", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "74402dad6b2aa4c05f2ded5ac17ec2100eab3cb773d7b741805a6b81b4c7e85b", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix planner's handling of outer PlaceHolderVars within subqueries (Tom Lane) This bug concerns sub-SELECTs that reference variables coming from the nullable side of an outer join of the surrounding query. In 9.1, queries affected by this bug would fail with ERROR: Upper-level PlaceHolderVar found where not expected. But in 9.0 and 8.4, you'd silently get possibly-wrong answers, since the value transmitted into the subquery wouldn't go to null when it should.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/009", "db_id": "ef188976cac2505dda8376e40a42b5d1", "patch_ids": [], "statement_hash": "8ee28efc2fbfda74cb453da5f680773337fd25421ee1855c571078dd937bb706", "relations": [{"rule": 2, "type": "equivalent", "target": "19a6e1973e59e9da729551e85bc3d665", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "8ee28efc2fbfda74cb453da5f680773337fd25421ee1855c571078dd937bb706"}}], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "19a6e1973e59e9da729551e85bc3d665", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Fix planner's handling of outer PlaceHolderVars within subqueries", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "8ee28efc2fbfda74cb453da5f680773337fd25421ee1855c571078dd937bb706"}, "url": "/docs/compare/?release=9.0.8#9.0.8-672fa046a7ce9b4b", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-7d1ae968bf2270c2", "cves": [], "html": "Fix planning of UNION ALL subqueries with output columns that are not simple variables (Tom Lane)
\nPlanning of such cases got noticeably worse in 9.1 as a result of a misguided fix for \"MergeAppend child's targetlist doesn't match MergeAppend\" errors. Revert that fix and do it another way.
", "text": "Fix planning of UNION ALL subqueries with output columns that are not simple variables (Tom Lane) Planning of such cases got noticeably worse in 9.1 as a result of a misguided fix for \"MergeAppend child's targetlist doesn't match MergeAppend\" errors. Revert that fix and do it another way.", "title": "Fix planning of UNION ALL subqueries with output columns that are not simple variables", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "6a4ffc166064f8b09ddf911e02e920c1c2db28138bce1d70ac841fd8c29d3d10", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix planning of UNION ALL subqueries with output columns that are not simple variables (Tom Lane) Planning of such cases got noticeably worse in 9.1 as a result of a misguided fix for MergeAppend child's targetlist doesn't match MergeAppend errors. Revert that fix and do it another way.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/010", "db_id": "20c9f5ca515c6f79fec1b5ee504114c4", "patch_ids": [], "statement_hash": "a8ca38d6526e03443cf9a6f6e68f96da93674c7f63884b21d932bc75efdc2d2e", "relations": [], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.1.4-f53fd1ab1aae3c28", "cves": [], "html": "Fix slow session startup when pg_attribute is very large (Tom Lane)
\nIf pg_attribute exceeds one-fourth of shared_buffers, cache rebuilding code that is sometimes needed during session start would trigger the synchronized-scan logic, causing it to take many times longer than normal. The problem was particularly acute if many new sessions were starting at once.
", "text": "Fix slow session startup when pg_attribute is very large (Tom Lane) If pg_attribute exceeds one-fourth of shared_buffers, cache rebuilding code that is sometimes needed during session start would trigger the synchronized-scan logic, causing it to take many times longer than normal. The problem was particularly acute if many new sessions were starting at once.", "title": "Fix slow session startup when pg_attribute is very large", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "f291eb34a8053b272fe285d3cb88a3e84de3ed5e0d6a59c98714e1d708ded0e3", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix slow session startup when pg_attribute is very large (Tom Lane) If pg_attribute exceeds one-fourth of shared_buffers, cache rebuilding code that is sometimes needed during session start would trigger the synchronized-scan logic, causing it to take many times longer than normal. The problem was particularly acute if many new sessions were starting at once.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/011", "db_id": "3067d257f33b50d90891579b75bb82b1", "patch_ids": [], "statement_hash": "0a7f507b1407c40499c963726716788f68d57c16325ddd52739c2610a0f7af0b", "relations": [{"rule": 2, "type": "equivalent", "target": "8e30e72a2405bcb8cb42f78c56812986", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "0a7f507b1407c40499c963726716788f68d57c16325ddd52739c2610a0f7af0b"}}], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "8e30e72a2405bcb8cb42f78c56812986", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Fix slow session startup when pg_attribute is very large", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "0a7f507b1407c40499c963726716788f68d57c16325ddd52739c2610a0f7af0b"}, "url": "/docs/compare/?release=9.0.8#9.0.8-f53fd1ab1aae3c28", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-72f74d32c0ae6c23", "cves": [], "html": "Ensure sequential scans check for query cancel reasonably often (Merlin Moncure)
\nA scan encountering many consecutive pages that contain no live tuples would not respond to interrupts meanwhile.
", "text": "Ensure sequential scans check for query cancel reasonably often (Merlin Moncure) A scan encountering many consecutive pages that contain no live tuples would not respond to interrupts meanwhile.", "title": "Ensure sequential scans check for query cancel reasonably often", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "48f014989507f574f50e0319eea1787d248a8c0acb89c83bd8cb242202121d25", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Ensure sequential scans check for query cancel reasonably often (Merlin Moncure) A scan encountering many consecutive pages that contain no live tuples would not respond to interrupts meanwhile.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/012", "db_id": "bd6436e92343187447f9bd25be2155e3", "patch_ids": [], "statement_hash": "32c4ebad7086dd8ff0fb67a82b5d81e2020c0da9c949bd90c1da163f46f80891", "relations": [{"rule": 2, "type": "equivalent", "target": "1adeba20bc22f27bf9f5441c733c00fe", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "32c4ebad7086dd8ff0fb67a82b5d81e2020c0da9c949bd90c1da163f46f80891"}}], "version": "9.1.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "1adeba20bc22f27bf9f5441c733c00fe", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Ensure sequential scans check for query cancel reasonably often", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "32c4ebad7086dd8ff0fb67a82b5d81e2020c0da9c949bd90c1da163f46f80891"}, "url": "/docs/compare/?release=9.0.8#9.0.8-72f74d32c0ae6c23", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-6f29443ce19348de", "cves": [], "html": "Ensure the Windows implementation of PGSemaphoreLock() clears ImmediateInterruptOK before returning (Tom Lane)
This oversight meant that a query-cancel interrupt received later in the same query could be accepted at an unsafe time, with unpredictable but not good consequences.
", "text": "Ensure the Windows implementation of PGSemaphoreLock() clears ImmediateInterruptOK before returning (Tom Lane) This oversight meant that a query-cancel interrupt received later in the same query could be accepted at an unsafe time, with unpredictable but not good consequences.", "title": "Ensure the Windows implementation of PGSemaphoreLock() clears ImmediateInterruptOK before returning", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "0515df05c357e80f06528ed45102c74a7345c0c78656281ee72ab3a2948a8f1b", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Ensure the Windows implementation of PGSemaphoreLock() clears ImmediateInterruptOK before returning (Tom Lane) This oversight meant that a query-cancel interrupt received later in the same query could be accepted at an unsafe time, with unpredictable but not good consequences.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/013", "db_id": "db01691604fa124e6f972589c146118e", "patch_ids": [], "statement_hash": "475baa30bf05e7068b9227b884192b9296ffb209bb282f734ab8b4f1bad76d95", "relations": [{"rule": 2, "type": "equivalent", "target": "621e08ded86dac462543a1b66528aedf", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "475baa30bf05e7068b9227b884192b9296ffb209bb282f734ab8b4f1bad76d95"}}], "version": "9.1.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "621e08ded86dac462543a1b66528aedf", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Ensure the Windows implementation of PGSemaphoreLock() clears ImmediateInterruptOK before returning", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "475baa30bf05e7068b9227b884192b9296ffb209bb282f734ab8b4f1bad76d95"}, "url": "/docs/compare/?release=9.0.8#9.0.8-6f29443ce19348de", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-f425228a4f106310", "cves": [], "html": "Show whole-row variables safely when printing views or rules (Abbas Butt, Tom Lane)
\nCorner cases involving ambiguous names (that is, the name could be either a table or column name of the query) were printed in an ambiguous way, risking that the view or rule would be interpreted differently after dump and reload. Avoid the ambiguous case by attaching a no-op cast.
", "text": "Show whole-row variables safely when printing views or rules (Abbas Butt, Tom Lane) Corner cases involving ambiguous names (that is, the name could be either a table or column name of the query) were printed in an ambiguous way, risking that the view or rule would be interpreted differently after dump and reload. Avoid the ambiguous case by attaching a no-op cast.", "title": "Show whole-row variables safely when printing views or rules", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "3e74b472e7c0b99515ebc321a5a5838a351a6c867b3a9ba9b84464243793b519", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Show whole-row variables safely when printing views or rules (Abbas Butt, Tom Lane) Corner cases involving ambiguous names (that is, the name could be either a table or column name of the query) were printed in an ambiguous way, risking that the view or rule would be interpreted differently after dump and reload. Avoid the ambiguous case by attaching a no-op cast.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/014", "db_id": "4c8e9274b22ace290b1f223746068ee3", "patch_ids": [], "statement_hash": "b08bd7aedbfa17f2c0ae9439b638e1f95a9356d905183fa9049d8bf16d7b6dcb", "relations": [{"rule": 2, "type": "equivalent", "target": "046268baafb6eb208a178d325c4f509f", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "b08bd7aedbfa17f2c0ae9439b638e1f95a9356d905183fa9049d8bf16d7b6dcb"}}], "version": "9.1.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "046268baafb6eb208a178d325c4f509f", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Show whole-row variables safely when printing views or rules", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "b08bd7aedbfa17f2c0ae9439b638e1f95a9356d905183fa9049d8bf16d7b6dcb"}, "url": "/docs/compare/?release=9.0.8#9.0.8-f425228a4f106310", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-6383db2c20607036", "cves": [], "html": "Fix COPY FROM to properly handle null marker strings that correspond to invalid encoding (Tom Lane)
\nA null marker string such as E'\\\\0' should work, and did work in the past, but the case got broken in 8.4.
", "text": "Fix COPY FROM to properly handle null marker strings that correspond to invalid encoding (Tom Lane) A null marker string such as E'\\\\0' should work, and did work in the past, but the case got broken in 8.4.", "title": "Fix COPY FROM to properly handle null marker strings that correspond to invalid encoding", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "cae92798a320025c41a60c0b6591a20eb89652cf2db5351718a0341c03f56614", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix COPY FROM to properly handle null marker strings that correspond to invalid encoding (Tom Lane) A null marker string such as E'\\\\0' should work, and did work in the past, but the case got broken in 8.4.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/015", "db_id": "b5da3801ab6a6f88ccbc5d535a02965a", "patch_ids": [], "statement_hash": "e95a56110050751e2be814ee1968520c2f1bdb1d487ab0ed47dfa2672f30fb83", "relations": [{"rule": 2, "type": "equivalent", "target": "2a4117a0b88da00252fd221e090f5545", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e95a56110050751e2be814ee1968520c2f1bdb1d487ab0ed47dfa2672f30fb83"}}], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": [{"db_id": "2a4117a0b88da00252fd221e090f5545", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Fix COPY FROM to properly handle null marker strings that correspond to invalid encoding", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "e95a56110050751e2be814ee1968520c2f1bdb1d487ab0ed47dfa2672f30fb83"}, "url": "/docs/compare/?release=9.0.8#9.0.8-6383db2c20607036", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-08592c4dfd37486b", "cves": [], "html": "Fix EXPLAIN VERBOSE for writable CTEs containing RETURNING clauses (Tom Lane)
", "text": "Fix EXPLAIN VERBOSE for writable CTEs containing RETURNING clauses (Tom Lane)", "title": "Fix EXPLAIN VERBOSE for writable CTEs containing RETURNING clauses", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "564c50f39c057642819a7912f781fdbc912050c0b224c7bfade74fbd6055230f", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix EXPLAIN VERBOSE for writable CTEs containing RETURNING clauses (Tom Lane)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/016", "db_id": "fc051691b52cddae39d4d8c157aaa728", "patch_ids": [], "statement_hash": "ddcf47296fbc3c1ed3a57ffe85c117e3bf9fd55ae31d8333dcc3dfdf14260a3c", "relations": [], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.1.4-68f3444812c98766", "cves": [], "html": "Fix PREPARE TRANSACTION to work correctly in the presence of advisory locks (Tom Lane)
\nHistorically, PREPARE TRANSACTION has simply ignored any session-level advisory locks the session holds, but this case was accidentally broken in 9.1.
", "text": "Fix PREPARE TRANSACTION to work correctly in the presence of advisory locks (Tom Lane) Historically, PREPARE TRANSACTION has simply ignored any session-level advisory locks the session holds, but this case was accidentally broken in 9.1.", "title": "Fix PREPARE TRANSACTION to work correctly in the presence of advisory locks", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "a5ad4561250e96eb25db4447e37e6847054a938ca67c64a15a1cb0ca98ced1d8", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix PREPARE TRANSACTION to work correctly in the presence of advisory locks (Tom Lane) Historically, PREPARE TRANSACTION has simply ignored any session-level advisory locks the session holds, but this case was accidentally broken in 9.1.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/017", "db_id": "d2ac23659db22528c2334253d495cea4", "patch_ids": [], "statement_hash": "bbdd4c20d59d087b915ac9b4e5450dfa34448620f33ed397b657edcca0ff255f", "relations": [], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.1.4-09bb70b516cc8dfe", "cves": [], "html": "Fix truncation of unlogged tables (Robert Haas)
", "text": "Fix truncation of unlogged tables (Robert Haas)", "title": "Fix truncation of unlogged tables", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "21d0fbcb273a5da09b73bc0639c36814bfa5f725f7570384a9975cb3626a27d7", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix truncation of unlogged tables (Robert Haas)", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/018", "db_id": "17ed1c76e5151bd0bba763ca52c8ecd6", "patch_ids": [], "statement_hash": "ff4154f593a7b044f91bd2d9ef7e5da2c6f9df095e75854b966579f7dcf1e8b4", "relations": [], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.1.4-39abd590d982f13d", "cves": [], "html": "Ignore missing schemas during non-interactive assignments of search_path (Tom Lane)
\nThis re-aligns 9.1's behavior with that of older branches. Previously 9.1 would throw an error for nonexistent schemas mentioned in search_path settings obtained from places such as ALTER DATABASE SET.
", "text": "Ignore missing schemas during non-interactive assignments of search_path (Tom Lane) This re-aligns 9.1's behavior with that of older branches. Previously 9.1 would throw an error for nonexistent schemas mentioned in search_path settings obtained from places such as ALTER DATABASE SET.", "title": "Ignore missing schemas during non-interactive assignments of search_path", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "91f1af1d48033ea678df9b48137aee24885eaefdedfa0a8d3f8ff19fc38248f3", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Ignore missing schemas during non-interactive assignments of search_path (Tom Lane) This re-aligns 9.1's behavior with that of older branches. Previously 9.1 would throw an error for nonexistent schemas mentioned in search_path settings obtained from places such as ALTER DATABASE SET.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/019", "db_id": "4d9cf0df443d441a54b965139c833176", "patch_ids": [], "statement_hash": "04eff021561bcdc2ea899b1fafb87fa0efe3d77c8b9954985f5ff4050c390e23", "relations": [], "version": "9.1.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.1.4-dc5cc8d20ac2c7f0", "cves": [], "html": "Fix bugs with temporary or transient tables used in extension scripts (Tom Lane)
\nThis includes cases such as a rewriting ALTER TABLE within an extension update script, since that uses a transient table behind the scenes.
", "text": "Fix bugs with temporary or transient tables used in extension scripts (Tom Lane) This includes cases such as a rewriting ALTER TABLE within an extension update script, since that uses a transient table behind the scenes.", "title": "Fix bugs with temporary or transient tables used in extension scripts", "commits": [], "section": "Changes", "category": "bugfix", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "b98858cb58a37497d41c9f612bec77ae2cc764d97e106cd534a45e7f0eded109", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Fix bugs with temporary or transient tables used in extension scripts (Tom Lane) This includes cases such as a rewriting ALTER TABLE within an extension update script, since that uses a transient table behind the scenes.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/020", "db_id": "444893c2ef670dcf05e3fcdb06c70a28", "patch_ids": [], "statement_hash": "20e47b8235c2f13608ca7205e54f43222c4f6e12ed1c8fea06e062a3f3ca0a94", "relations": [], "version": "9.1.4", "category_label": "Bug fixes", "also_in": [], "variants": [], "related_changes": []}, {"id": "9.1.4-11ce81bfd73f79af", "cves": [], "html": "Ensure autovacuum worker processes perform stack depth checking properly (Heikki Linnakangas)
\nPreviously, infinite recursion in a function invoked by auto-ANALYZE could crash worker processes.
", "text": "Ensure autovacuum worker processes perform stack depth checking properly (Heikki Linnakangas) Previously, infinite recursion in a function invoked by auto-ANALYZE could crash worker processes.", "title": "Ensure autovacuum worker processes perform stack depth checking properly", "commits": [], "section": "Changes", "category": "improvement", "source_url": "/docs/release/9.1.4/#AEN109701", "source_hash": "b794dd5ddc8be160f08b469b5728c89827fbc41451390fb278c4a23161abce8e", "section_path": ["Changes"], "commit_groups": [], "identity_text": "Ensure autovacuum worker processes perform stack depth checking properly (Heikki Linnakangas) Previously, infinite recursion in a function invoked by auto-ANALYZE could crash worker processes.", "commit_aliases": [], "source_commits": [], "source_entry_id": "9.1.4/changes/021", "db_id": "5163f9da5a826eaa7bbcf89a43982fec", "patch_ids": [], "statement_hash": "0f52396aa707d6b843a52a7c887bbdde0c730d2fec6c70552b6a7c795241c07e", "relations": [{"rule": 2, "type": "equivalent", "target": "36167ec72ac13f36f65ffe51dfc10ef8", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "0f52396aa707d6b843a52a7c887bbdde0c730d2fec6c70552b6a7c795241c07e"}}], "version": "9.1.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "36167ec72ac13f36f65ffe51dfc10ef8", "kind": "equivalent", "version": "9.0.8", "label": "9.0.8", "title": "Ensure autovacuum worker processes perform stack depth checking properly", "evidence": {"same_day": true, "patch_ids": [], "statement_hash": "0f52396aa707d6b843a52a7c887bbdde0c730d2fec6c70552b6a7c795241c07e"}, "url": "/docs/compare/?release=9.0.8#9.0.8-11ce81bfd73f79af", "source_url": "/docs/release/9.0.8/#AEN101167"}]}, {"id": "9.1.4-c567676d308121d8", "cves": [], "html": "Fix logging collector to not lose log coherency under high load (Andrew Dunstan)
\nThe collector previously could fail to reassemble large messages if it got too busy.
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