A dump/restore is not required for those running 13.X.
\nHowever, if you are upgrading from a version earlier than 13.2, see Section E.22.
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\nThe planner could create an incorrect plan in cases where two ProjectionPaths were stacked on top of each other. The only known way to trigger that situation involves parallel sort operations, but there may be other instances. The result would be crashes or incorrect query results. Disclosure of server memory contents is also possible. (CVE-2021-3677)
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", "text": "Disallow SSL renegotiation more completely (Michael Paquier) § SSL renegotiation has been disabled for some time, but the server would still cooperate with a client-initiated renegotiation request. A maliciously crafted renegotiation request could result in a server crash (see OpenSSL issue CVE-2021-3449). Disable the feature altogether on OpenSSL versions that permit doing so, which are 1.1.0h and newer.", "title": "Disallow SSL renegotiation more completely", "commits": ["a23c0b00f"], "section": "Changes", "category": "security", "source_url": "/docs/release/13.4/#id-1.11.6.25.5", "source_hash": "a38050d1c089d6c917e7310c4518ff6e25fc14baac5a3274331e67648da5e3ae", "section_path": ["Changes"], "commit_groups": [["01e6f1a84", "3f8072be8", "7777df34d", "96918b76f", "a23c0b00f", "c64b5d10d"]], "identity_text": "Disallow SSL renegotiation more completely (Michael Paquier) SSL renegotiation has been disabled for some time, but the server would still cooperate with a client-initiated renegotiation request. A maliciously crafted renegotiation request could result in a server crash (see OpenSSL issue CVE-2021-3449). Disable the feature altogether on OpenSSL versions that permit doing so, which are 1.1.0h and newer.", "commit_aliases": ["01e6f1a84", "3f8072be8", "7777df34d", "96918b76f", "a23c0b00f", "c64b5d10d"], "source_commits": ["a23c0b00f"], "source_entry_id": "13.4/changes/002", "db_id": "4f2b18ee3f4784fef09ad3379cf02069", "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0", "relations": [{"rule": 2, "type": "equivalent", "target": "3d9d70a83323ba8f7bcf8c582f40cb46", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}}, {"rule": 2, "type": "equivalent", "target": "9fb3a6ab9cc88bd231af587ca0282062", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}}, {"rule": 2, "type": "equivalent", "target": "b709758bedd697c77455c5261f332edb", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}}, {"rule": 2, "type": "equivalent", "target": "b7147cf9842278bd6788921da285b6d2", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}}], "version": "13.4", "category_label": "Security", "also_in": [], "variants": [], "related_changes": [{"db_id": "b709758bedd697c77455c5261f332edb", "kind": "equivalent", "version": "12.8", "label": "12.8", "title": "Disallow SSL renegotiation more completely", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}, "url": "/docs/compare/?release=12.8#12.8-e43fe95675839650", "source_url": "/docs/release/12.8/#id-1.11.6.20.5"}, {"db_id": "9fb3a6ab9cc88bd231af587ca0282062", "kind": "equivalent", "version": "11.13", "label": "11.13", "title": "Disallow SSL renegotiation more completely", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}, "url": "/docs/compare/?release=11.13#11.13-7d6902ca733e9938", "source_url": "/docs/release/11.13/#id-1.11.6.14.5"}, {"db_id": "b7147cf9842278bd6788921da285b6d2", "kind": "equivalent", "version": "10.18", "label": "10.18", "title": "Disallow SSL renegotiation more completely", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}, "url": "/docs/compare/?release=10.18#10.18-7d6902ca733e9938", "source_url": "/docs/release/10.18/#id-1.11.6.10.5"}, {"db_id": "3d9d70a83323ba8f7bcf8c582f40cb46", "kind": "equivalent", "version": "9.6.23", "label": "9.6.23", "title": "Disallow SSL renegotiation more completely", "evidence": {"same_day": true, "patch_ids": ["6bc45f96ca5b384e0377b3d701876272"], "statement_hash": "340d173f1f532f2c9063cf2a30303197c3d9bc46bfac6ce0414ee840829ea9c0"}, "url": "/docs/compare/?release=9.6.23#9.6.23-7d6902ca733e9938", "source_url": "/docs/release/9.6.23/#AEN132078"}]}, {"id": "13.4-b28306aa2e65e73f", "cves": [], "html": "Restore the Portal-level snapshot after COMMIT or ROLLBACK within a procedure (Tom Lane) § § § § §
This change fixes cases where an attempt to fetch a toasted value immediately after COMMIT/ROLLBACK would fail with errors like “no known snapshots” or “missing chunk number 0 for toast value”.
Some extensions may attempt to execute SQL code outside of any Portal. They are responsible for ensuring that an outer snapshot exists before doing so. Previously, not providing a snapshot might work or it might not; now it will consistently fail with “cannot execute SQL without an outer snapshot or portal”.
", "text": "Restore the Portal-level snapshot after COMMIT or ROLLBACK within a procedure (Tom Lane) § § § § § This change fixes cases where an attempt to fetch a toasted value immediately after COMMIT/ROLLBACK would fail with errors like “no known snapshots” or “missing chunk number 0 for toast value”. Some extensions may attempt to execute SQL code outside of any Portal. They are responsible for ensuring that an outer snapshot exists before doing so. Previously, not providing a snapshot might work or it might not; now it will consistently fail with “cannot execute SQL without an outer snapshot or portal”.", "title": "Restore the Portal-level snapshot after COMMIT or ROLLBACK within a procedure", "commits": ["6e43f1c2d", "6f1321d5a", "93f99693f", "c64183f23", "d18ee6f92"], "section": "Changes", "category": "improvement", "source_url": "/docs/release/13.4/#id-1.11.6.25.5", "source_hash": "789b3d406e6118e5bb9d7116419862529fa5084feb74421432829c298926c94d", "section_path": ["Changes"], "commit_groups": [["0c1b2cb17", "8d341d6cb", "c64183f23", "f21fadafa"], ["26383da7d", "3a09d75b4", "6e43f1c2d", "eea081ad0"], ["29d5d5761", "6f1321d5a", "77200c569", "d102aafb6"], ["41c6a5bec", "84f5c2908", "d18ee6f92", "ef9480509"], ["93f99693f", "cefb1230e", "ec410c985", "ef12f32c0", "f26043645"]], "identity_text": "Restore the Portal-level snapshot after COMMIT or ROLLBACK within a procedure (Tom Lane) This change fixes cases where an attempt to fetch a toasted value immediately after COMMIT/ROLLBACK would fail with errors like no known snapshots or missing chunk number 0 for toast value. Some extensions may attempt to execute SQL code outside of any Portal. They are responsible for ensuring that an outer snapshot exists before doing so. Previously, not providing a snapshot might work or it might not; now it will consistently fail with cannot execute SQL without an outer snapshot or portal.", "commit_aliases": ["0c1b2cb17", "26383da7d", "29d5d5761", "3a09d75b4", "41c6a5bec", "6e43f1c2d", "6f1321d5a", "77200c569", "84f5c2908", "8d341d6cb", "93f99693f", "c64183f23", "cefb1230e", "d102aafb6", "d18ee6f92", "ec410c985", "eea081ad0", "ef12f32c0", "ef9480509", "f21fadafa", "f26043645"], "source_commits": ["6e43f1c2d", "6f1321d5a", "93f99693f", "c64183f23", "d18ee6f92"], "source_entry_id": "13.4/changes/003", "db_id": "1bbe0fb6d7d017b02ef4f546c5a08c35", "patch_ids": ["1ff786556077a70d23aadfc3a157a434", "2557dddc4e80c849124ed3485f9124ca", "bf98993337ad07a07a0f3d96773a6fb5", "c862f855cb94cc61e6e8820367509197", "f4ddfca2a115fb32d5528fbbd938f8c2"], "statement_hash": "26db513d393d78a5588c3e9a4524abb329343a95d8e7d2481fbbe973f6814ff3", "relations": [{"rule": 2, "type": "equivalent", "target": "10ccb8269ee55bc1e763b3e9c8fc2167", "evidence": {"same_day": true, "patch_ids": ["1ff786556077a70d23aadfc3a157a434", "2557dddc4e80c849124ed3485f9124ca", "bf98993337ad07a07a0f3d96773a6fb5", "c862f855cb94cc61e6e8820367509197", "f4ddfca2a115fb32d5528fbbd938f8c2"], "statement_hash": "26db513d393d78a5588c3e9a4524abb329343a95d8e7d2481fbbe973f6814ff3"}}, {"rule": 2, "type": "equivalent", "target": "af1c2e17c991da585c574a54d8491107", "evidence": {"same_day": true, "patch_ids": ["1ff786556077a70d23aadfc3a157a434", "2557dddc4e80c849124ed3485f9124ca", "bf98993337ad07a07a0f3d96773a6fb5", "c862f855cb94cc61e6e8820367509197", "f4ddfca2a115fb32d5528fbbd938f8c2"], "statement_hash": "26db513d393d78a5588c3e9a4524abb329343a95d8e7d2481fbbe973f6814ff3"}}], "version": "13.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "10ccb8269ee55bc1e763b3e9c8fc2167", "kind": "equivalent", "version": "12.8", "label": "12.8", "title": "Restore the Portal-level snapshot after COMMIT or ROLLBACK within a procedure", "evidence": {"same_day": true, "patch_ids": ["1ff786556077a70d23aadfc3a157a434", "2557dddc4e80c849124ed3485f9124ca", "bf98993337ad07a07a0f3d96773a6fb5", "c862f855cb94cc61e6e8820367509197", "f4ddfca2a115fb32d5528fbbd938f8c2"], "statement_hash": "26db513d393d78a5588c3e9a4524abb329343a95d8e7d2481fbbe973f6814ff3"}, "url": "/docs/compare/?release=12.8#12.8-3fa3d59d3e30928d", "source_url": "/docs/release/12.8/#id-1.11.6.20.5"}, {"db_id": "af1c2e17c991da585c574a54d8491107", "kind": "equivalent", "version": "11.13", "label": "11.13", "title": "Restore the Portal-level snapshot after COMMIT or ROLLBACK within a procedure", "evidence": {"same_day": true, "patch_ids": ["1ff786556077a70d23aadfc3a157a434", "2557dddc4e80c849124ed3485f9124ca", "bf98993337ad07a07a0f3d96773a6fb5", "c862f855cb94cc61e6e8820367509197", "f4ddfca2a115fb32d5528fbbd938f8c2"], "statement_hash": "26db513d393d78a5588c3e9a4524abb329343a95d8e7d2481fbbe973f6814ff3"}, "url": "/docs/compare/?release=11.13#11.13-ac91bd6bee90f7d6", "source_url": "/docs/release/11.13/#id-1.11.6.14.5"}]}, {"id": "13.4-c567b2519748e23e", "cves": [], "html": "Avoid misbehavior when persisting the output of a cursor that's reading a non-stable query (Tom Lane) § §
\nPreviously, we'd always rewind and re-read the whole query result, possibly getting results different from the earlier execution, causing great confusion later. For a NO SCROLL cursor, we can fix this by only storing the not-yet-read portion of the query output, which is sufficient since a NO SCROLL cursor can't be backed up. Cursors with the SCROLL option remain at hazard, but that was already documented to be an unsafe option to use with a non-stable query. Make those documentation warnings stronger.
\nAlso force NO SCROLL mode for the implicit cursor used by a PL/pgSQL FOR-over-query loop, to avoid this type of problem when persisting such a cursor during an intra-procedure commit.
", "text": "Avoid misbehavior when persisting the output of a cursor that's reading a non-stable query (Tom Lane) § § Previously, we'd always rewind and re-read the whole query result, possibly getting results different from the earlier execution, causing great confusion later. For a NO SCROLL cursor, we can fix this by only storing the not-yet-read portion of the query output, which is sufficient since a NO SCROLL cursor can't be backed up. Cursors with the SCROLL option remain at hazard, but that was already documented to be an unsafe option to use with a non-stable query. Make those documentation warnings stronger. Also force NO SCROLL mode for the implicit cursor used by a PL/pgSQL FOR-over-query loop, to avoid this type of problem when persisting such a cursor during an intra-procedure commit.", "title": "Avoid misbehavior when persisting the output of a cursor that's reading a non-stable query", "commits": ["c1fd756fd", "c5b281841"], "section": "Changes", "category": "improvement", "source_url": "/docs/release/13.4/#id-1.11.6.25.5", "source_hash": "b6ff01959ef6c9831b30c1560cfcc8423b055cb5c3a2a4b7d04d1c2375cfa5bc", "section_path": ["Changes"], "commit_groups": [["182323300", "5b7bf9f72", "be9009890", "c5b281841"], ["2757865fa", "ba2c6d6ce", "c1fd756fd", "c3b508268"]], "identity_text": "Avoid misbehavior when persisting the output of a cursor that's reading a non-stable query (Tom Lane) Previously, we'd always rewind and re-read the whole query result, possibly getting results different from the earlier execution, causing great confusion later. For a NO SCROLL cursor, we can fix this by only storing the not-yet-read portion of the query output, which is sufficient since a NO SCROLL cursor can't be backed up. Cursors with the SCROLL option remain at hazard, but that was already documented to be an unsafe option to use with a non-stable query. Make those documentation warnings stronger. Also force NO SCROLL mode for the implicit cursor used by a PL/pgSQL FOR-over-query loop, to avoid this type of problem when persisting such a cursor during an intra-procedure commit.", "commit_aliases": ["182323300", "2757865fa", "5b7bf9f72", "ba2c6d6ce", "be9009890", "c1fd756fd", "c3b508268", "c5b281841"], "source_commits": ["c1fd756fd", "c5b281841"], "source_entry_id": "13.4/changes/004", "db_id": "1011c295745d3430366bead25ca6433c", "patch_ids": ["52218db81227e885ec8726bea84ddb4d", "94138ee8c5874b4518161b6c7421ad5c"], "statement_hash": "66c1bc5c866bc946463bad580c6e29f1c32b9b1444e4cdfdcf00e74de2d0c96b", "relations": [{"rule": 2, "type": "equivalent", "target": "8762a1f0f0742f39d0293631f3055182", "evidence": {"same_day": true, "patch_ids": ["52218db81227e885ec8726bea84ddb4d", "94138ee8c5874b4518161b6c7421ad5c"], "statement_hash": "66c1bc5c866bc946463bad580c6e29f1c32b9b1444e4cdfdcf00e74de2d0c96b"}}, {"rule": 2, "type": "equivalent", "target": "ebcf2aff50e3122c29ee032f52a6fa86", "evidence": {"same_day": true, "patch_ids": ["52218db81227e885ec8726bea84ddb4d", "94138ee8c5874b4518161b6c7421ad5c"], "statement_hash": "66c1bc5c866bc946463bad580c6e29f1c32b9b1444e4cdfdcf00e74de2d0c96b"}}], "version": "13.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "8762a1f0f0742f39d0293631f3055182", "kind": "equivalent", "version": "12.8", "label": "12.8", "title": "Avoid misbehavior when persisting the output of a cursor that's reading a non-stable query", "evidence": {"same_day": true, "patch_ids": ["52218db81227e885ec8726bea84ddb4d", "94138ee8c5874b4518161b6c7421ad5c"], "statement_hash": "66c1bc5c866bc946463bad580c6e29f1c32b9b1444e4cdfdcf00e74de2d0c96b"}, "url": "/docs/compare/?release=12.8#12.8-64934100c6e796c7", "source_url": "/docs/release/12.8/#id-1.11.6.20.5"}, {"db_id": "ebcf2aff50e3122c29ee032f52a6fa86", "kind": "equivalent", "version": "11.13", "label": "11.13", "title": "Avoid misbehavior when persisting the output of a cursor that's reading a non-stable query", "evidence": {"same_day": true, "patch_ids": ["52218db81227e885ec8726bea84ddb4d", "94138ee8c5874b4518161b6c7421ad5c"], "statement_hash": "66c1bc5c866bc946463bad580c6e29f1c32b9b1444e4cdfdcf00e74de2d0c96b"}, "url": "/docs/compare/?release=11.13#11.13-c10a3d81a011dfec", "source_url": "/docs/release/11.13/#id-1.11.6.14.5"}]}, {"id": "13.4-9d91217a1bbb7285", "cves": [], "html": "Reject SELECT ... GROUP BY GROUPING SETS (()) FOR UPDATE (Tom Lane) §
This should be disallowed, just as FOR UPDATE with a plain GROUP BY is disallowed, but the test for that failed to handle empty grouping sets correctly. The end result would be a null-pointer dereference in the executor.
Reject cases where a query in WITH rewrites to just NOTIFY (Tom Lane) §
Such cases previously crashed.
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Fix corner-case errors and loss of precision when raising numeric values to very large powers (Dean Rasheed) § §
Fix division-by-zero failure in to_char() with EEEE format and a numeric input value less than 10^(-1001) (Dean Rasheed) §
Fix pg_size_pretty(bigint) to round negative values consistently with the way it rounds positive ones (and consistently with the numeric version) (Dean Rasheed, David Rowley) § §
Make pg_filenode_relation(0, 0) return NULL rather than failing (Justin Pryzby) §
Make ALTER EXTENSION lock the extension when adding or removing a member object (Tom Lane) §
The previous coding allowed ALTER EXTENSION ADD/DROP to occur concurrently with DROP EXTENSION, leading to a crash or corrupt catalog entries.
Fix ALTER SUBSCRIPTION to reject an empty slot name (Japin Li) §
When cloning a partitioned table's triggers to a new partition, ensure that their enabled status is copied (Álvaro Herrera) §
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This command failed on materialized views containing columns with certain names, notably mv and newdata.
Fix PREPARE TRANSACTION to check correctly for conflicting session-lifespan and transaction-lifespan locks (Tom Lane) §
A transaction cannot be prepared if it has both session-lifespan and transaction-lifespan locks on the same advisory-lock ID value. This restriction was not fully checked, which could lead to a PANIC during PREPARE TRANSACTION.
Fix misbehavior of DROP OWNED BY when the target role is listed more than once in an RLS policy (Tom Lane) §
Skip unnecessary error tests when removing a role from an RLS policy during DROP OWNED BY (Tom Lane) §
Notably, this fixes some cases where it was necessary to be a superuser to use DROP OWNED BY.
Re-allow old-style Windows locale names in CREATE COLLATION commands (Thomas Munro) §
Previously we were failing because the operating system can't provide version information for such locales. At some point we may decide to require version information, but no such policy exists yet, so re-allow the case for now.
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Use of a whole-row variable clearly violates the rule that a generated column cannot depend on itself, so such cases have no well-defined behavior. The actual behavior frequently included a crash.
", "text": "Disallow whole-row variables in GENERATED expressions (Tom Lane) § Use of a whole-row variable clearly violates the rule that a generated column cannot depend on itself, so such cases have no well-defined behavior. The actual behavior frequently included a crash.", "title": "Disallow whole-row variables in GENERATED expressions", "commits": ["849c7971d"], "section": "Changes", "category": "improvement", "source_url": "/docs/release/13.4/#id-1.11.6.25.5", "source_hash": "3b50517765b42211d412ec53bf73850689fdea6ceec9aa6d76f7ed234420159e", "section_path": ["Changes"], "commit_groups": [["4b1007445", "61feb8670", "849c7971d"]], "identity_text": "Disallow whole-row variables in GENERATED expressions (Tom Lane) Use of a whole-row variable clearly violates the rule that a generated column cannot depend on itself, so such cases have no well-defined behavior. The actual behavior frequently included a crash.", "commit_aliases": ["4b1007445", "61feb8670", "849c7971d"], "source_commits": ["849c7971d"], "source_entry_id": "13.4/changes/020", "db_id": "01a883b8d2a9a82d40b9013ac4dd7c05", "patch_ids": ["7ced96bbbc4a5a1c08a482b30cdabd9f"], "statement_hash": "d7eb55abbc7084be0f7a5dfe644f121aaa498e0016f689b4a4c2d093bc0ddabd", "relations": [{"rule": 2, "type": "equivalent", "target": "2fc1b76a55c45620a553a2d1df7a0ce9", "evidence": {"same_day": true, "patch_ids": ["7ced96bbbc4a5a1c08a482b30cdabd9f"], "statement_hash": "d7eb55abbc7084be0f7a5dfe644f121aaa498e0016f689b4a4c2d093bc0ddabd"}}], "version": "13.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "2fc1b76a55c45620a553a2d1df7a0ce9", "kind": "equivalent", "version": "12.8", "label": "12.8", "title": "Disallow whole-row variables in GENERATED expressions", "evidence": {"same_day": true, "patch_ids": ["7ced96bbbc4a5a1c08a482b30cdabd9f"], "statement_hash": "d7eb55abbc7084be0f7a5dfe644f121aaa498e0016f689b4a4c2d093bc0ddabd"}, "url": "/docs/compare/?release=12.8#12.8-2d29eccc155b60ba", "source_url": "/docs/release/12.8/#id-1.11.6.20.5"}]}, {"id": "13.4-9f1e45cb25cf50b1", "cves": [], "html": "Fix usage of tableoid in GENERATED expressions (Tom Lane) §
Some code paths failed to provide a valid value for this system column while evaluating a GENERATED expression.
Don't store a “fast default” when adding a column to a foreign table (Andrew Dunstan) §
\nThe fast default is useless since no local heap storage exists for such a table, but it confused subsequent operations. In addition to suppressing creation of such catalog entries in ALTER TABLE commands, adjust the downstream code to cope when one is incorrectly present.
Allow index state flags to be updated transactionally (Michael Paquier, Andrey Lepikhov) § §
\nThis avoids failures when dealing with index predicates that aren't really immutable. While that's not considered a supported case, the original reason for using a non-transactional update here is long gone, so we may as well change it.
", "text": "Allow index state flags to be updated transactionally (Michael Paquier, Andrey Lepikhov) § § This avoids failures when dealing with index predicates that aren't really immutable. While that's not considered a supported case, the original reason for using a non-transactional update here is long gone, so we may as well change it.", "title": "Allow index state flags to be updated transactionally", "commits": ["acb60edf0", "fd7bc10ab"], "section": "Changes", "category": "improvement", "source_url": "/docs/release/13.4/#id-1.11.6.25.5", "source_hash": "24d6ec6dbadf6781d86fadd403a409dd61ba8af4b0bd03ddf13119890f7d85c6", "section_path": ["Changes"], "commit_groups": [["08acba558", "3c465883b", "83158f74d", "acb60edf0", "d3d0cbeb6", "e52f7cbec"], ["09a69f6e2", "21257a8f6", "38ca11ade", "5160d5bb1", "ce8949c4b", "fd7bc10ab"]], "identity_text": "Allow index state flags to be updated transactionally (Michael Paquier, Andrey Lepikhov) This avoids failures when dealing with index predicates that aren't really immutable. 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Make walsenders show their latest replication commands in pg_stat_activity (Tom Lane) §
Previously, a walsender would show its latest SQL command, which was confusing if it's now doing some replication operation instead. Now we show replication-protocol commands on the same footing as SQL commands.
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On 64-bit Windows, allow the effective value of work_mem times hash_mem_multiplier to exceed 2GB (Tom Lane) §
This allows hash_mem_multiplier to be used for its intended purpose of preventing large hash aggregations from spilling to disk, even when “large” means multiple gigabytes.
Fix mis-planning of queries involving regular tables that are inheritance children of foreign tables (Amit Langote) §
\nSELECT FOR UPDATE and related commands would fail with assertion failures or “could not find junk column” errors in such cases.
Fix pullup of constant function-in-FROM results when the FROM item is marked LATERAL (Tom Lane) §
Fix corner-case failure of a new standby to follow a new primary (Dilip Kumar, Robert Haas) § § § § § §
\nUnder a narrow combination of conditions, the standby could wind up trying to follow the wrong WAL timeline.
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", "text": "Ensure that SP-GiST index insertion can be terminated by a query cancel request (Tom Lane, Álvaro Herrera) § §", "title": "Ensure that SP-GiST index insertion can be terminated by a query cancel request", "commits": ["63831c162", "c1b72bf04"], "section": "Changes", "category": "improvement", "source_url": "/docs/release/13.4/#id-1.11.6.25.5", "source_hash": "7eae4804f0c536c06ae56edfecc8c835db1d7d9fee8966b638953f9141798ebd", "section_path": ["Changes"], "commit_groups": [["004288d3c", "4c6cfcc37", "c1b72bf04", "eb7a6b922", "f4ee4082f", "fe64adc93"], ["39b8ccb08", "4c646b179", "567328989", "63831c162", "8274f4517", "e47f93f98"]], "identity_text": "Ensure that SP-GiST index insertion can be terminated by a query cancel request (Tom Lane, Álvaro Herrera)", "commit_aliases": ["004288d3c", "39b8ccb08", "4c646b179", "4c6cfcc37", "567328989", "63831c162", "8274f4517", "c1b72bf04", "e47f93f98", "eb7a6b922", "f4ee4082f", "fe64adc93"], "source_commits": ["63831c162", "c1b72bf04"], "source_entry_id": "13.4/changes/052", "db_id": "f32051b3c22836c47f8b5a5619edd76c", "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf", "relations": [{"rule": 2, "type": "equivalent", "target": "0a43e4e2b650e39cea84b2f6253fecc5", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}}, {"rule": 2, "type": "equivalent", "target": "0e027c99afec348ed4f864869fef6944", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}}, {"rule": 2, "type": "equivalent", "target": "2658fff0e9f46595bdd91fdc3838223a", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}}, {"rule": 2, "type": "equivalent", "target": "a9039556ba47ca94e6cee5eb37316af0", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}}], "version": "13.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "2658fff0e9f46595bdd91fdc3838223a", "kind": "equivalent", "version": "12.8", "label": "12.8", "title": "Ensure that SP-GiST index insertion can be terminated by a query cancel request", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}, "url": "/docs/compare/?release=12.8#12.8-30a3685eb0f10764", "source_url": "/docs/release/12.8/#id-1.11.6.20.5"}, {"db_id": "0e027c99afec348ed4f864869fef6944", "kind": "equivalent", "version": "11.13", "label": "11.13", "title": "Ensure that SP-GiST index insertion can be terminated by a query cancel request", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}, "url": "/docs/compare/?release=11.13#11.13-14f35669b604ce40", "source_url": "/docs/release/11.13/#id-1.11.6.14.5"}, {"db_id": "0a43e4e2b650e39cea84b2f6253fecc5", "kind": "equivalent", "version": "10.18", "label": "10.18", "title": "Ensure that SP-GiST index insertion can be terminated by a query cancel request", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}, "url": "/docs/compare/?release=10.18#10.18-14f35669b604ce40", "source_url": "/docs/release/10.18/#id-1.11.6.10.5"}, {"db_id": "a9039556ba47ca94e6cee5eb37316af0", "kind": "equivalent", "version": "9.6.23", "label": "9.6.23", "title": "Ensure that SP-GiST index insertion can be terminated by a query cancel request", "evidence": {"same_day": true, "patch_ids": ["60ef5600566bf3e5c2f68ae0dfb7d418", "a249576ba115c4fa276cb8904b3efcd3"], "statement_hash": "68d7cce5231999763ab54c0150959b7b518aa71391b500c7fb135090fbb840bf"}, "url": "/docs/compare/?release=9.6.23#9.6.23-14f35669b604ce40", "source_url": "/docs/release/9.6.23/#AEN132078"}]}, {"id": "13.4-94f5ac9a7fbd0961", "cves": [], "html": "Fix uninitialized-variable bug that could cause PL/pgSQL to act as though an INTO clause specified STRICT, even though it didn't (Tom Lane) §
Don't abort the process for an out-of-memory failure in libpq's printing functions (Tom Lane) §
", "text": "Don't abort the process for an out-of-memory failure in libpq's printing functions (Tom Lane) §", "title": "Don't abort the process for an out-of-memory failure in libpq's printing functions", "commits": ["1603deca3"], "section": "Changes", "category": "improvement", "source_url": "/docs/release/13.4/#id-1.11.6.25.5", "source_hash": "0c5557d4784e3d55fad02b51db0ba1fb5a8507f0208b78592a7d766ff908897a", "section_path": ["Changes"], "commit_groups": [["06a2b2fe5", "1603deca3", "240d56fc4", "34c24e5a4", "6f5d9bce5", "b54be47cd", "cf1f545bf"]], "identity_text": "Don't abort the process for an out-of-memory failure in libpq's printing functions (Tom Lane)", "commit_aliases": ["06a2b2fe5", "1603deca3", "240d56fc4", "34c24e5a4", "6f5d9bce5", "b54be47cd", "cf1f545bf"], "source_commits": ["1603deca3"], "source_entry_id": "13.4/changes/054", "db_id": "dd793ace1c1335839fd2ecde0fa2664a", "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac", "relations": [{"rule": 2, "type": "equivalent", "target": "3c07f943acf446d851cab8d387077080", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}}, {"rule": 2, "type": "equivalent", "target": "5b1aa7d0496ca1556a44ef957a1dd535", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}}, {"rule": 2, "type": "equivalent", "target": "e0cc952cfb8f2465138a45467d8daf9c", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}}, {"rule": 2, "type": "equivalent", "target": "e37949475727735828fe77538d712cf9", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}}], "version": "13.4", "category_label": "Improvements", "also_in": [], "variants": [], "related_changes": [{"db_id": "e37949475727735828fe77538d712cf9", "kind": "equivalent", "version": "12.8", "label": "12.8", "title": "Don't abort the process for an out-of-memory failure in libpq's printing functions", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}, "url": "/docs/compare/?release=12.8#12.8-48100c3ea7b904ab", "source_url": "/docs/release/12.8/#id-1.11.6.20.5"}, {"db_id": "5b1aa7d0496ca1556a44ef957a1dd535", "kind": "equivalent", "version": "11.13", "label": "11.13", "title": "Don't abort the process for an out-of-memory failure in libpq's printing functions", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}, "url": "/docs/compare/?release=11.13#11.13-e6cc1e42a0ee5c0d", "source_url": "/docs/release/11.13/#id-1.11.6.14.5"}, {"db_id": "3c07f943acf446d851cab8d387077080", "kind": "equivalent", "version": "10.18", "label": "10.18", "title": "Don't abort the process for an out-of-memory failure in libpq's printing functions", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}, "url": "/docs/compare/?release=10.18#10.18-e6cc1e42a0ee5c0d", "source_url": "/docs/release/10.18/#id-1.11.6.10.5"}, {"db_id": "e0cc952cfb8f2465138a45467d8daf9c", "kind": "equivalent", "version": "9.6.23", "label": "9.6.23", "title": "Don't abort the process for an out-of-memory failure in libpq's printing functions", "evidence": {"same_day": true, "patch_ids": ["72d2c94c09f77d4b07ff593f12323001"], "statement_hash": "e8b9bf8d21949f3c06e5c30da98a20ae03225c8489bfce1699bfa037d75255ac"}, "url": "/docs/compare/?release=9.6.23#9.6.23-e6cc1e42a0ee5c0d", "source_url": "/docs/release/9.6.23/#AEN132078"}]}, {"id": "13.4-133c7e0f30fe4665", "cves": [], "html": "In ecpg, allow the numeric value INT_MIN (usually -2147483648) to be converted to integer (John Naylor) §
In psql and other client programs, avoid overrunning the ends of strings when dealing with invalidly-encoded data (Tom Lane) §
\nAn incorrectly-encoded multibyte character near the end of a string could cause various processing loops to run past the string's terminating NUL, with results ranging from no detectable issue to a program crash, depending on what happens to be in the following memory. This is reminiscent of CVE-2006-2313, although these particular cases do not appear to have interesting security consequences.
", "text": "In psql and other client programs, avoid overrunning the ends of strings when dealing with invalidly-encoded data (Tom Lane) § An incorrectly-encoded multibyte character near the end of a string could cause various processing loops to run past the string's terminating NUL, with results ranging from no detectable issue to a program crash, depending on what happens to be in the following memory. 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Previously, the new installation's oldestXID was set to a value old enough to (usually) force immediate anti-wraparound autovacuuming. That's not desirable from a performance standpoint; what's worse, installations using large values of autovacuum_freeze_max_age could suffer unwanted forced shutdowns soon after an upgrade.
Extend pg_upgrade to detect and warn about extensions that should be upgraded (Bruce Momjian) § §
\nA script file is now produced containing the ALTER EXTENSION UPDATE commands needed to bring extensions up to the versions that are considered default in the new installation.
Avoid problems when switching pg_receivewal between compressed and non-compressed WAL storage (Michael Paquier) § §
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postgres_fdw will now behave reasonably with generated columns, so long as a generated column in a foreign table represents a generated column in the remote table. IMPORT FOREIGN SCHEMA will now import generated columns that way by default.
In contrib/postgres_fdw, avoid attempting catalog lookups after an error (Tom Lane) §
While this usually worked, it's not very safe since the error might have been one that made catalog access nonfunctional. A side effect of the fix is that messages about data conversion errors will now mention the query's table and column aliases (if used) rather than the true underlying name of a foreign table or column.
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