Branch: REL9_6_STABLE [96d2df840] 2018-03-02 17:40:48 -0500
-->
- Fix possible leak or double-free of visibility map buffer pins
+ Fix possible leak or double free of visibility map buffer pins
(Amit Kapila)
This could happen if some tuples were locked (but not deleted). While
- queries would still function correctly, vacuum would generally ignore
+ queries would still function correctly, vacuum would normally ignore
such pages, with the long-term effect that the tuples were never
frozen. In recent releases this would eventually result in errors
such as found multixact nnnnn from
Branch: REL9_3_STABLE [dfc383cf3] 2018-04-11 23:40:31 +0300
-->
- Ensure client hostname is copied to local memory when copying
- pg_stat_activity data (Edmund Horner)
+ Ensure client hostname is copied while copying
+ pg_stat_activity data to local memory
+ (Edmund Horner)
-->
Prevent query-lifespan memory leakage with SP-GiST operator classes
- that use traversal values (Anton Dignös)
+ that use traversal values (Anton Dignös)
Ensure that
pg_rewind deletes files on the
target server if they are deleted from the source server during the
- run (Tsunakawa Takayuki)
+ run (Takayuki Tsunakawa)
+ Adjust
PL/Python regression tests to pass
+ under Python 3.7 (Peter Eisentraut)
+
+
+
+
+
Support testing
PL/Python and related
- Support building with Microsoft Visual Studio 2015 (Michael Paquier)
-
-
- Various fixes needed for VS2015 compatibility were previously
- back-patched into the 9.5 branch, but one was missed.
-
-
-
-
-
- Update time zone data files to
tzdata- release 2018d for DST law changes in Palestine and Antarctica (Casey
- Station), plus historical corrections for Portugal and its colonies,
- as well as Enderbury, Jamaica, Turks & Caicos Islands, and
- Uruguay.
-
-
-
-
-
+ Update time zone data files to
tzdata+ release 2018d for DST law changes in Palestine and Antarctica (Casey
+ Station), plus historical corrections for Portugal and its colonies,
+ as well as Enderbury, Jamaica, Turks & Caicos Islands, and
+ Uruguay.
+
+
+
+
+
Release 9.3.23
+
+
+
Release date:
+
+
+ This release contains a variety of fixes from 9.3.22.
+ For information about new features in the 9.3 major release, see
+ .
+
+
+
+
Migration to Version 9.3.23
+
+ A dump/restore is not required for those running 9.3.X.
+
+
+ However, if the function marking mistakes mentioned in the first
+ changelog entry below affect you, you will want to take steps to
+ correct your database catalogs.
+
+
+ Also, if you are upgrading from a version earlier than 9.3.22,
+ see .
+
+
+
+
+
Changes
+
+
+
+
+ Fix incorrect volatility markings on a few built-in functions
+ (Thomas Munro, Tom Lane)
+
+
+ The functions
+ query_to_xml,
+ cursor_to_xml,
+ cursor_to_xmlschema,
+ query_to_xmlschema, and
+ query_to_xml_and_xmlschema
+ should be marked volatile because they execute user-supplied queries
+ that might contain volatile operations. They were not, leading to a
+ risk of incorrect query optimization. This has been repaired for new
+ installations by correcting the initial catalog data, but existing
+ installations will continue to contain the incorrect markings.
+ Practical use of these functions seems to pose little hazard, but in
+ case of trouble, it can be fixed by manually updating these
+ functions' pg_proc entries. (Note that that
+ will need to be done in each database of the installation.) Another
+ option is to
pg_upgrade the database to a
+ version containing the corrected initial data.
+
+
+
+
+ Avoid re-using TOAST value OIDs that match dead-but-not-yet-vacuumed
+ TOAST entries (Pavan Deolasee)
+
+
+ Once the OID counter has wrapped around, it's possible to assign a
+ TOAST value whose OID matches a previously deleted entry in the same
+ TOAST table. If that entry were not yet vacuumed away, this resulted
+ in unexpected chunk number 0 (expected 1) for toast
+ value nnnnn errors, which would
+ persist until the dead entry was removed
+ by VACUUM. Fix by not selecting such OIDs when
+ creating a new TOAST entry.
+
+
+
+
+ Change ANALYZE's algorithm for updating
+ pg_class.reltuples
+ (David Gould)
+
+
+ Previously, pages not actually scanned by ANALYZE
+ were assumed to retain their old tuple density. In a large table
+ where ANALYZE samples only a small fraction of the
+ pages, this meant that the overall tuple density estimate could not
+ change very much, so that reltuples would
+ change nearly proportionally to changes in the table's physical size
+ (relpages) regardless of what was actually
+ happening in the table. This has been observed to result
+ in reltuples becoming so much larger than
+ reality as to effectively shut off autovacuuming. To fix, assume
+ that ANALYZE's sample is a statistically unbiased
+ sample of the table (as it should be), and just extrapolate the
+ density observed within those pages to the whole table.
+
+
+
+
+ Fix UPDATE/DELETE ... WHERE CURRENT OF to not fail
+ when the referenced cursor uses an index-only-scan plan (Yugo Nagata,
+ Tom Lane)
+
+
+
+
+ Fix incorrect planning of join clauses pushed into parameterized
+ paths (Andrew Gierth, Tom Lane)
+
+
+ This error could result in misclassifying a condition as
+ a join filter
for an outer join when it should be a
+ plain filter
condition, leading to incorrect join
+ output.
+
+
+
+
+ Fix misoptimization of CHECK constraints having
+ provably-NULL subclauses of
+ top-level AND/OR conditions
+ (Tom Lane, Dean Rasheed)
+
+
+ This could, for example, allow constraint exclusion to exclude a
+ child table that should not be excluded from a query.
+
+
+
+
+ Avoid failure if a query-cancel or session-termination interrupt
+ occurs while committing a prepared transaction (Stas Kelvich)
+
+
+
+
+ Fix query-lifespan memory leakage in repeatedly executed hash joins
+ (Tom Lane)
+
+
+
+
+ Fix overly strict sanity check
+ in heap_prepare_freeze_tuple
+ (Álvaro Herrera)
+
+
+ This could result in incorrect cannot freeze committed
+ xmax failures in databases that have
+ been
pg_upgrade'd from 9.2 or earlier.
+
+
+
+
+ Prevent dangling-pointer dereference when a C-coded before-update row
+ trigger returns the old
tuple (Rushabh Lathia)
+
+
+
+
+ Reduce locking during autovacuum worker scheduling (Jeff Janes)
+
+
+ The previous behavior caused drastic loss of potential worker
+ concurrency in databases with many tables.
+
+
+
+
+ Ensure client hostname is copied while copying
+ pg_stat_activity data to local memory
+ (Edmund Horner)
+
+
+ Previously the supposedly-local snapshot contained a pointer into
+ shared memory, allowing the client hostname column to change
+ unexpectedly if any existing session disconnected.
+
+
+
+
+ Fix incorrect processing of multiple compound affixes
+ in ispell dictionaries (Arthur Zakirov)
+
+
+
+
+ Fix collation-aware searches (that is, indexscans using inequality
+ operators) in SP-GiST indexes on text columns (Tom Lane)
+
+
+ Such searches would return the wrong set of rows in most non-C
+ locales.
+
+
+
+
+ Count the number of index tuples correctly during initial build of an
+ SP-GiST index (Tomas Vondra)
+
+
+ Previously, the tuple count was reported to be the same as that of
+ the underlying table, which is wrong if the index is partial.
+
+
+
+
+ Count the number of index tuples correctly during vacuuming of a
+ GiST index (Andrey Borodin)
+
+
+ Previously it reported the estimated number of heap tuples,
+ which might be inaccurate, and is certainly wrong if the
+ index is partial.
+
+
+
+
+ Allow scalarltsel
+ and scalargtsel to be used on non-core datatypes
+ (Tomas Vondra)
+
+
+
+
+ Reduce
libpq's memory consumption when a
+ server error is reported after a large amount of query output has
+ been collected (Tom Lane)
+
+
+ Discard the previous output before, not after, processing the error
+ message. On some platforms, notably Linux, this can make a
+ difference in the application's subsequent memory footprint.
+
+
+
+
+ Fix double-free crashes in
ecpg+ (Patrick Krecker, Jeevan Ladhe)
+
+
+
+
+ Fix
ecpg to handle
long long+ int variables correctly in MSVC builds (Michael Meskes,
+ Andrew Gierth)
+
+
+
+
+ Fix mis-quoting of values for list-valued GUC variables in dumps
+ (Michael Paquier, Tom Lane)
+
+
+ The local_preload_libraries,
+ session_preload_libraries,
+ shared_preload_libraries,
+ and temp_tablespaces variables were not correctly
+ quoted in
pg_dump output. This would
+ cause problems if settings for these variables appeared in
+ CREATE FUNCTION ... SET or ALTER
+ DATABASE/ROLE ... SET clauses.
+
+
+
+
+ Fix overflow handling in
PL/pgSQL+ integer FOR loops (Tom Lane)
+
+
+ The previous coding failed to detect overflow of the loop variable
+ on some non-gcc compilers, leading to an infinite loop.
+
+
+
+
+ Adjust
PL/Python regression tests to pass
+ under Python 3.7 (Peter Eisentraut)
+
+
+
+
+ Support testing
PL/Python and related
+ modules when building with Python 3 and MSVC (Andrew Dunstan)
+
+
+
+
+ Rename internal b64_encode
+ and b64_decode functions to avoid conflict with
+ Solaris 11.4 built-in functions (Rainer Orth)
+
+
+
+
+ Sync our copy of the timezone library with IANA tzcode release 2018e
+ (Tom Lane)
+
+
+ This fixes the
zic timezone data compiler
+ to cope with negative daylight-savings offsets. While
+ the
PostgreSQL project will not
+ immediately ship such timezone data,
zic+ might be used with timezone data obtained directly from IANA, so it
+ seems prudent to update
zic now.
+
+
+
+
+ Update time zone data files to
tzdata+ release 2018d for DST law changes in Palestine and Antarctica (Casey
+ Station), plus historical corrections for Portugal and its colonies,
+ as well as Enderbury, Jamaica, Turks & Caicos Islands, and
+ Uruguay.
+
+
+
+
+
+
+
+
Release 9.3.22
+
+
Release 9.4.18
+
+
+
Release date:
+
+
+ This release contains a variety of fixes from 9.4.17.
+ For information about new features in the 9.4 major release, see
+ .
+
+
+
+
Migration to Version 9.4.18
+
+ A dump/restore is not required for those running 9.4.X.
+
+
+ However, if the function marking mistakes mentioned in the first
+ changelog entry below affect you, you will want to take steps to
+ correct your database catalogs.
+
+
+ Also, if you are upgrading from a version earlier than 9.4.17,
+ see .
+
+
+
+
+
Changes
+
+
+
+
+ Fix incorrect volatility markings on a few built-in functions
+ (Thomas Munro, Tom Lane)
+
+
+ The functions
+ query_to_xml,
+ cursor_to_xml,
+ cursor_to_xmlschema,
+ query_to_xmlschema, and
+ query_to_xml_and_xmlschema
+ should be marked volatile because they execute user-supplied queries
+ that might contain volatile operations. They were not, leading to a
+ risk of incorrect query optimization. This has been repaired for new
+ installations by correcting the initial catalog data, but existing
+ installations will continue to contain the incorrect markings.
+ Practical use of these functions seems to pose little hazard, but in
+ case of trouble, it can be fixed by manually updating these
+ functions' pg_proc entries. (Note that that
+ will need to be done in each database of the installation.) Another
+ option is to
pg_upgrade the database to a
+ version containing the corrected initial data.
+
+
+
+
+ Avoid re-using TOAST value OIDs that match dead-but-not-yet-vacuumed
+ TOAST entries (Pavan Deolasee)
+
+
+ Once the OID counter has wrapped around, it's possible to assign a
+ TOAST value whose OID matches a previously deleted entry in the same
+ TOAST table. If that entry were not yet vacuumed away, this resulted
+ in unexpected chunk number 0 (expected 1) for toast
+ value nnnnn errors, which would
+ persist until the dead entry was removed
+ by VACUUM. Fix by not selecting such OIDs when
+ creating a new TOAST entry.
+
+
+
+
+ Change ANALYZE's algorithm for updating
+ pg_class.reltuples
+ (David Gould)
+
+
+ Previously, pages not actually scanned by ANALYZE
+ were assumed to retain their old tuple density. In a large table
+ where ANALYZE samples only a small fraction of the
+ pages, this meant that the overall tuple density estimate could not
+ change very much, so that reltuples would
+ change nearly proportionally to changes in the table's physical size
+ (relpages) regardless of what was actually
+ happening in the table. This has been observed to result
+ in reltuples becoming so much larger than
+ reality as to effectively shut off autovacuuming. To fix, assume
+ that ANALYZE's sample is a statistically unbiased
+ sample of the table (as it should be), and just extrapolate the
+ density observed within those pages to the whole table.
+
+
+
+
+ Avoid deadlocks in concurrent CREATE INDEX
+ CONCURRENTLY commands that are run
+ under SERIALIZABLE or REPEATABLE
+ READ transaction isolation (Tom Lane)
+
+
+
+
+ Fix possible slow execution of REFRESH MATERIALIZED VIEW
+ CONCURRENTLY (Thomas Munro)
+
+
+
+
+ Fix UPDATE/DELETE ... WHERE CURRENT OF to not fail
+ when the referenced cursor uses an index-only-scan plan (Yugo Nagata,
+ Tom Lane)
+
+
+
+
+ Fix incorrect planning of join clauses pushed into parameterized
+ paths (Andrew Gierth, Tom Lane)
+
+
+ This error could result in misclassifying a condition as
+ a join filter
for an outer join when it should be a
+ plain filter
condition, leading to incorrect join
+ output.
+
+
+
+
+ Fix misoptimization of CHECK constraints having
+ provably-NULL subclauses of
+ top-level AND/OR conditions
+ (Tom Lane, Dean Rasheed)
+
+
+ This could, for example, allow constraint exclusion to exclude a
+ child table that should not be excluded from a query.
+
+
+
+
+ Avoid failure if a query-cancel or session-termination interrupt
+ occurs while committing a prepared transaction (Stas Kelvich)
+
+
+
+
+ Fix query-lifespan memory leakage in repeatedly executed hash joins
+ (Tom Lane)
+
+
+
+
+ Fix overly strict sanity check
+ in heap_prepare_freeze_tuple
+ (Álvaro Herrera)
+
+
+ This could result in incorrect cannot freeze committed
+ xmax failures in databases that have
+ been
pg_upgrade'd from 9.2 or earlier.
+
+
+
+
+ Prevent dangling-pointer dereference when a C-coded before-update row
+ trigger returns the old
tuple (Rushabh Lathia)
+
+
+
+
+ Reduce locking during autovacuum worker scheduling (Jeff Janes)
+
+
+ The previous behavior caused drastic loss of potential worker
+ concurrency in databases with many tables.
+
+
+
+
+ Ensure client hostname is copied while copying
+ pg_stat_activity data to local memory
+ (Edmund Horner)
+
+
+ Previously the supposedly-local snapshot contained a pointer into
+ shared memory, allowing the client hostname column to change
+ unexpectedly if any existing session disconnected.
+
+
+
+
+ Fix incorrect processing of multiple compound affixes
+ in ispell dictionaries (Arthur Zakirov)
+
+
+
+
+ Fix collation-aware searches (that is, indexscans using inequality
+ operators) in SP-GiST indexes on text columns (Tom Lane)
+
+
+ Such searches would return the wrong set of rows in most non-C
+ locales.
+
+
+
+
+ Count the number of index tuples correctly during initial build of an
+ SP-GiST index (Tomas Vondra)
+
+
+ Previously, the tuple count was reported to be the same as that of
+ the underlying table, which is wrong if the index is partial.
+
+
+
+
+ Count the number of index tuples correctly during vacuuming of a
+ GiST index (Andrey Borodin)
+
+
+ Previously it reported the estimated number of heap tuples,
+ which might be inaccurate, and is certainly wrong if the
+ index is partial.
+
+
+
+
+ Fix a corner case where a streaming standby gets stuck at a WAL
+ continuation record (Kyotaro Horiguchi)
+
+
+
+
+ In logical decoding, avoid possible double processing of WAL data
+ when a walsender restarts (Craig Ringer)
+
+
+
+
+ Allow scalarltsel
+ and scalargtsel to be used on non-core datatypes
+ (Tomas Vondra)
+
+
+
+
+ Reduce
libpq's memory consumption when a
+ server error is reported after a large amount of query output has
+ been collected (Tom Lane)
+
+
+ Discard the previous output before, not after, processing the error
+ message. On some platforms, notably Linux, this can make a
+ difference in the application's subsequent memory footprint.
+
+
+
+
+ Fix double-free crashes in
ecpg+ (Patrick Krecker, Jeevan Ladhe)
+
+
+
+
+ Fix
ecpg to handle
long long+ int variables correctly in MSVC builds (Michael Meskes,
+ Andrew Gierth)
+
+
+
+
+ Fix mis-quoting of values for list-valued GUC variables in dumps
+ (Michael Paquier, Tom Lane)
+
+
+ The local_preload_libraries,
+ session_preload_libraries,
+ shared_preload_libraries,
+ and temp_tablespaces variables were not correctly
+ quoted in
pg_dump output. This would
+ cause problems if settings for these variables appeared in
+ CREATE FUNCTION ... SET or ALTER
+ DATABASE/ROLE ... SET clauses.
+
+
+
+
+ Fix
pg_recvlogical to not fail against
+ pre-v10
PostgreSQL servers
+ (Michael Paquier)
+
+
+ A previous fix caused
pg_recvlogical to
+ issue a command regardless of server version, but it should only be
+ issued to v10 and later servers.
+
+
+
+
+ Fix overflow handling in
PL/pgSQL+ integer FOR loops (Tom Lane)
+
+
+ The previous coding failed to detect overflow of the loop variable
+ on some non-gcc compilers, leading to an infinite loop.
+
+
+
+
+ Adjust
PL/Python regression tests to pass
+ under Python 3.7 (Peter Eisentraut)
+
+
+
+
+ Support testing
PL/Python and related
+ modules when building with Python 3 and MSVC (Andrew Dunstan)
+
+
+
+
+ Rename internal b64_encode
+ and b64_decode functions to avoid conflict with
+ Solaris 11.4 built-in functions (Rainer Orth)
+
+
+
+
+ Sync our copy of the timezone library with IANA tzcode release 2018e
+ (Tom Lane)
+
+
+ This fixes the
zic timezone data compiler
+ to cope with negative daylight-savings offsets. While
+ the
PostgreSQL project will not
+ immediately ship such timezone data,
zic+ might be used with timezone data obtained directly from IANA, so it
+ seems prudent to update
zic now.
+
+
+
+
+ Update time zone data files to
tzdata+ release 2018d for DST law changes in Palestine and Antarctica (Casey
+ Station), plus historical corrections for Portugal and its colonies,
+ as well as Enderbury, Jamaica, Turks & Caicos Islands, and
+ Uruguay.
+
+
+
+
+
+
+
+
Release 9.4.17
+
+
Release 9.5.13
+
+
+
Release date:
+
+
+ This release contains a variety of fixes from 9.5.12.
+ For information about new features in the 9.5 major release, see
+ .
+
+
+
+
Migration to Version 9.5.13
+
+ A dump/restore is not required for those running 9.5.X.
+
+
+ However, if the function marking mistakes mentioned in the first
+ changelog entry below affect you, you will want to take steps to
+ correct your database catalogs.
+
+
+ Also, if you are upgrading from a version earlier than 9.5.12,
+ see .
+
+
+
+
+
Changes
+
+
+
+
+ Fix incorrect volatility markings on a few built-in functions
+ (Thomas Munro, Tom Lane)
+
+
+ The functions
+ query_to_xml,
+ cursor_to_xml,
+ cursor_to_xmlschema,
+ query_to_xmlschema, and
+ query_to_xml_and_xmlschema
+ should be marked volatile because they execute user-supplied queries
+ that might contain volatile operations. They were not, leading to a
+ risk of incorrect query optimization. This has been repaired for new
+ installations by correcting the initial catalog data, but existing
+ installations will continue to contain the incorrect markings.
+ Practical use of these functions seems to pose little hazard, but in
+ case of trouble, it can be fixed by manually updating these
+ functions' pg_proc entries. (Note that that
+ will need to be done in each database of the installation.) Another
+ option is to
pg_upgrade the database to a
+ version containing the corrected initial data.
+
+
+
+
+ Avoid re-using TOAST value OIDs that match dead-but-not-yet-vacuumed
+ TOAST entries (Pavan Deolasee)
+
+
+ Once the OID counter has wrapped around, it's possible to assign a
+ TOAST value whose OID matches a previously deleted entry in the same
+ TOAST table. If that entry were not yet vacuumed away, this resulted
+ in unexpected chunk number 0 (expected 1) for toast
+ value nnnnn errors, which would
+ persist until the dead entry was removed
+ by VACUUM. Fix by not selecting such OIDs when
+ creating a new TOAST entry.
+
+
+
+
+ Change ANALYZE's algorithm for updating
+ pg_class.reltuples
+ (David Gould)
+
+
+ Previously, pages not actually scanned by ANALYZE
+ were assumed to retain their old tuple density. In a large table
+ where ANALYZE samples only a small fraction of the
+ pages, this meant that the overall tuple density estimate could not
+ change very much, so that reltuples would
+ change nearly proportionally to changes in the table's physical size
+ (relpages) regardless of what was actually
+ happening in the table. This has been observed to result
+ in reltuples becoming so much larger than
+ reality as to effectively shut off autovacuuming. To fix, assume
+ that ANALYZE's sample is a statistically unbiased
+ sample of the table (as it should be), and just extrapolate the
+ density observed within those pages to the whole table.
+
+
+
+
+ Avoid deadlocks in concurrent CREATE INDEX
+ CONCURRENTLY commands that are run
+ under SERIALIZABLE or REPEATABLE
+ READ transaction isolation (Tom Lane)
+
+
+
+
+ Fix possible slow execution of REFRESH MATERIALIZED VIEW
+ CONCURRENTLY (Thomas Munro)
+
+
+
+
+ Fix UPDATE/DELETE ... WHERE CURRENT OF to not fail
+ when the referenced cursor uses an index-only-scan plan (Yugo Nagata,
+ Tom Lane)
+
+
+
+
+ Fix incorrect planning of join clauses pushed into parameterized
+ paths (Andrew Gierth, Tom Lane)
+
+
+ This error could result in misclassifying a condition as
+ a join filter
for an outer join when it should be a
+ plain filter
condition, leading to incorrect join
+ output.
+
+
+
+
+ Fix possibly incorrect generation of an index-only-scan plan when the
+ same table column appears in multiple index columns, and only some of
+ those index columns use operator classes that can return the column
+ value (Kyotaro Horiguchi)
+
+
+
+
+ Fix misoptimization of CHECK constraints having
+ provably-NULL subclauses of
+ top-level AND/OR conditions
+ (Tom Lane, Dean Rasheed)
+
+
+ This could, for example, allow constraint exclusion to exclude a
+ child table that should not be excluded from a query.
+
+
+
+
+ Fix executor crash due to double free in some GROUPING
+ SET usages (Peter Geoghegan)
+
+
+
+
+ Avoid crash if a table rewrite event trigger is added concurrently
+ with a command that could call such a trigger (Álvaro Herrera,
+ Andrew Gierth, Tom Lane)
+
+
+
+
+ Avoid failure if a query-cancel or session-termination interrupt
+ occurs while committing a prepared transaction (Stas Kelvich)
+
+
+
+
+ Fix query-lifespan memory leakage in repeatedly executed hash joins
+ (Tom Lane)
+
+
+
+
+ Fix overly strict sanity check
+ in heap_prepare_freeze_tuple
+ (Álvaro Herrera)
+
+
+ This could result in incorrect cannot freeze committed
+ xmax failures in databases that have
+ been
pg_upgrade'd from 9.2 or earlier.
+
+
+
+
+ Prevent dangling-pointer dereference when a C-coded before-update row
+ trigger returns the old
tuple (Rushabh Lathia)
+
+
+
+
+ Reduce locking during autovacuum worker scheduling (Jeff Janes)
+
+
+ The previous behavior caused drastic loss of potential worker
+ concurrency in databases with many tables.
+
+
+
+
+ Ensure client hostname is copied while copying
+ pg_stat_activity data to local memory
+ (Edmund Horner)
+
+
+ Previously the supposedly-local snapshot contained a pointer into
+ shared memory, allowing the client hostname column to change
+ unexpectedly if any existing session disconnected.
+
+
+
+
+ Fix incorrect processing of multiple compound affixes
+ in ispell dictionaries (Arthur Zakirov)
+
+
+
+
+ Fix collation-aware searches (that is, indexscans using inequality
+ operators) in SP-GiST indexes on text columns (Tom Lane)
+
+
+ Such searches would return the wrong set of rows in most non-C
+ locales.
+
+
+
+
+ Count the number of index tuples correctly during initial build of an
+ SP-GiST index (Tomas Vondra)
+
+
+ Previously, the tuple count was reported to be the same as that of
+ the underlying table, which is wrong if the index is partial.
+
+
+
+
+ Count the number of index tuples correctly during vacuuming of a
+ GiST index (Andrey Borodin)
+
+
+ Previously it reported the estimated number of heap tuples,
+ which might be inaccurate, and is certainly wrong if the
+ index is partial.
+
+
+
+
+ Fix a corner case where a streaming standby gets stuck at a WAL
+ continuation record (Kyotaro Horiguchi)
+
+
+
+
+ In logical decoding, avoid possible double processing of WAL data
+ when a walsender restarts (Craig Ringer)
+
+
+
+
+ Allow scalarltsel
+ and scalargtsel to be used on non-core datatypes
+ (Tomas Vondra)
+
+
+
+
+ Reduce
libpq's memory consumption when a
+ server error is reported after a large amount of query output has
+ been collected (Tom Lane)
+
+
+ Discard the previous output before, not after, processing the error
+ message. On some platforms, notably Linux, this can make a
+ difference in the application's subsequent memory footprint.
+
+
+
+
+ Fix double-free crashes in
ecpg+ (Patrick Krecker, Jeevan Ladhe)
+
+
+
+
+ Fix
ecpg to handle
long long+ int variables correctly in MSVC builds (Michael Meskes,
+ Andrew Gierth)
+
+
+
+
+ Fix mis-quoting of values for list-valued GUC variables in dumps
+ (Michael Paquier, Tom Lane)
+
+
+ The local_preload_libraries,
+ session_preload_libraries,
+ shared_preload_libraries,
+ and temp_tablespaces variables were not correctly
+ quoted in
pg_dump output. This would
+ cause problems if settings for these variables appeared in
+ CREATE FUNCTION ... SET or ALTER
+ DATABASE/ROLE ... SET clauses.
+
+
+
+
+ Fix
pg_recvlogical to not fail against
+ pre-v10
PostgreSQL servers
+ (Michael Paquier)
+
+
+ A previous fix caused
pg_recvlogical to
+ issue a command regardless of server version, but it should only be
+ issued to v10 and later servers.
+
+
+
+
+ Ensure that
pg_rewind deletes files on the
+ target server if they are deleted from the source server during the
+ run (Takayuki Tsunakawa)
+
+
+ Failure to do this could result in data inconsistency on the target,
+ particularly if the file in question is a WAL segment.
+
+
+
+
+ Fix
pg_rewind to handle tables in
+ non-default tablespaces correctly (Takayuki Tsunakawa)
+
+
+
+
+ Fix overflow handling in
PL/pgSQL+ integer FOR loops (Tom Lane)
+
+
+ The previous coding failed to detect overflow of the loop variable
+ on some non-gcc compilers, leading to an infinite loop.
+
+
+
+
+ Adjust
PL/Python regression tests to pass
+ under Python 3.7 (Peter Eisentraut)
+
+
+
+
+ Support testing
PL/Python and related
+ modules when building with Python 3 and MSVC (Andrew Dunstan)
+
+
+
+
+
+ Support building with Microsoft Visual Studio 2015 (Michael Paquier)
+
+
+ Various fixes needed for VS2015 compatibility were previously
+ back-patched into the 9.5 branch, but this one was missed.
+
+
+
+
+ Rename internal b64_encode
+ and b64_decode functions to avoid conflict with
+ Solaris 11.4 built-in functions (Rainer Orth)
+
+
+
+
+ Sync our copy of the timezone library with IANA tzcode release 2018e
+ (Tom Lane)
+
+
+ This fixes the
zic timezone data compiler
+ to cope with negative daylight-savings offsets. While
+ the
PostgreSQL project will not
+ immediately ship such timezone data,
zic+ might be used with timezone data obtained directly from IANA, so it
+ seems prudent to update
zic now.
+
+
+
+
+ Update time zone data files to
tzdata+ release 2018d for DST law changes in Palestine and Antarctica (Casey
+ Station), plus historical corrections for Portugal and its colonies,
+ as well as Enderbury, Jamaica, Turks & Caicos Islands, and
+ Uruguay.
+
+
+
+
+
+
+
+
Release 9.5.12
+
+
Release 9.6.9
+
+
+
Release date:
+
+
+ This release contains a variety of fixes from 9.6.8.
+ For information about new features in the 9.6 major release, see
+ .
+
+
+
+
Migration to Version 9.6.9
+
+ A dump/restore is not required for those running 9.6.X.
+
+
+ However, if the function marking mistakes mentioned in the first two
+ changelog entries below affect you, you will want to take steps to
+ correct your database catalogs.
+
+
+ Also, if you are upgrading from a version earlier than 9.6.8,
+ see .
+
+
+
+
+
Changes
+
+
+
+
+ Fix incorrect volatility markings on a few built-in functions
+ (Thomas Munro, Tom Lane)
+
+
+ The functions
+ query_to_xml,
+ cursor_to_xml,
+ cursor_to_xmlschema,
+ query_to_xmlschema, and
+ query_to_xml_and_xmlschema
+ should be marked volatile because they execute user-supplied queries
+ that might contain volatile operations. They were not, leading to a
+ risk of incorrect query optimization. This has been repaired for new
+ installations by correcting the initial catalog data, but existing
+ installations will continue to contain the incorrect markings.
+ Practical use of these functions seems to pose little hazard, but in
+ case of trouble, it can be fixed by manually updating these
+ functions' pg_proc entries. (Note that that
+ will need to be done in each database of the installation.) Another
+ option is to
pg_upgrade the database to a
+ version containing the corrected initial data.
+
+
+
+
+ Fix incorrect parallel-safety markings on a few built-in functions
+ (Thomas Munro, Tom Lane)
+
+
+ The functions
+ brin_summarize_new_values,
+ brin_summarize_range,
+ brin_desummarize_range,
+ gin_clean_pending_list,
+ cursor_to_xml,
+ cursor_to_xmlschema,
+ ts_rewrite,
+ ts_stat,
+ binary_upgrade_create_empty_extension, and
+ pg_import_system_collations
+ should be marked parallel-unsafe; some because they perform database
+ modifications directly, and others because they execute user-supplied
+ queries that might do so. They were marked parallel-restricted
+ instead, leading to a risk of unexpected query errors. This has been
+ repaired for new installations by correcting the initial catalog
+ data, but existing installations will continue to contain the
+ incorrect markings. Practical use of these functions seems to pose
+ little hazard unless force_parallel_mode is turned
+ on. In case of trouble, it can be fixed by manually updating these
+ functions' pg_proc entries. (Note that that
+ will need to be done in each database of the installation.) Another
+ option is to
pg_upgrade the database to a
+ version containing the corrected initial data.
+
+
+
+
+ Avoid re-using TOAST value OIDs that match dead-but-not-yet-vacuumed
+ TOAST entries (Pavan Deolasee)
+
+
+ Once the OID counter has wrapped around, it's possible to assign a
+ TOAST value whose OID matches a previously deleted entry in the same
+ TOAST table. If that entry were not yet vacuumed away, this resulted
+ in unexpected chunk number 0 (expected 1) for toast
+ value nnnnn errors, which would
+ persist until the dead entry was removed
+ by VACUUM. Fix by not selecting such OIDs when
+ creating a new TOAST entry.
+
+
+
+
+ Change ANALYZE's algorithm for updating
+ pg_class.reltuples
+ (David Gould)
+
+
+ Previously, pages not actually scanned by ANALYZE
+ were assumed to retain their old tuple density. In a large table
+ where ANALYZE samples only a small fraction of the
+ pages, this meant that the overall tuple density estimate could not
+ change very much, so that reltuples would
+ change nearly proportionally to changes in the table's physical size
+ (relpages) regardless of what was actually
+ happening in the table. This has been observed to result
+ in reltuples becoming so much larger than
+ reality as to effectively shut off autovacuuming. To fix, assume
+ that ANALYZE's sample is a statistically unbiased
+ sample of the table (as it should be), and just extrapolate the
+ density observed within those pages to the whole table.
+
+
+
+
+ Avoid deadlocks in concurrent CREATE INDEX
+ CONCURRENTLY commands that are run
+ under SERIALIZABLE or REPEATABLE
+ READ transaction isolation (Tom Lane)
+
+
+
+
+ Fix possible slow execution of REFRESH MATERIALIZED VIEW
+ CONCURRENTLY (Thomas Munro)
+
+
+
+
+ Fix UPDATE/DELETE ... WHERE CURRENT OF to not fail
+ when the referenced cursor uses an index-only-scan plan (Yugo Nagata,
+ Tom Lane)
+
+
+
+
+ Fix incorrect planning of join clauses pushed into parameterized
+ paths (Andrew Gierth, Tom Lane)
+
+
+ This error could result in misclassifying a condition as
+ a join filter
for an outer join when it should be a
+ plain filter
condition, leading to incorrect join
+ output.
+
+
+
+
+ Fix possibly incorrect generation of an index-only-scan plan when the
+ same table column appears in multiple index columns, and only some of
+ those index columns use operator classes that can return the column
+ value (Kyotaro Horiguchi)
+
+
+
+
+ Fix misoptimization of CHECK constraints having
+ provably-NULL subclauses of
+ top-level AND/OR conditions
+ (Tom Lane, Dean Rasheed)
+
+
+ This could, for example, allow constraint exclusion to exclude a
+ child table that should not be excluded from a query.
+
+
+
+
+ Fix executor crash due to double free in some GROUPING
+ SET usages (Peter Geoghegan)
+
+
+
+
+ Avoid crash if a table rewrite event trigger is added concurrently
+ with a command that could call such a trigger (Álvaro Herrera,
+ Andrew Gierth, Tom Lane)
+
+
+
+
+ Avoid failure if a query-cancel or session-termination interrupt
+ occurs while committing a prepared transaction (Stas Kelvich)
+
+
+
+
+ Fix query-lifespan memory leakage in repeatedly executed hash joins
+ (Tom Lane)
+
+
+
+
+ Fix possible leak or double free of visibility map buffer pins
+ (Amit Kapila)
+
+
+
+
+ Avoid spuriously marking pages as all-visible (Dan Wood,
+ Pavan Deolasee, Álvaro Herrera)
+
+
+ This could happen if some tuples were locked (but not deleted). While
+ queries would still function correctly, vacuum would normally ignore
+ such pages, with the long-term effect that the tuples were never
+ frozen. In recent releases this would eventually result in errors
+ such as found multixact nnnnn from
+ before relminmxid nnnnn.
+
+
+
+
+ Fix overly strict sanity check
+ in heap_prepare_freeze_tuple
+ (Álvaro Herrera)
+
+
+ This could result in incorrect cannot freeze committed
+ xmax failures in databases that have
+ been
pg_upgrade'd from 9.2 or earlier.
+
+
+
+
+ Prevent dangling-pointer dereference when a C-coded before-update row
+ trigger returns the old
tuple (Rushabh Lathia)
+
+
+
+
+ Reduce locking during autovacuum worker scheduling (Jeff Janes)
+
+
+ The previous behavior caused drastic loss of potential worker
+ concurrency in databases with many tables.
+
+
+
+
+ Ensure client hostname is copied while copying
+ pg_stat_activity data to local memory
+ (Edmund Horner)
+
+
+ Previously the supposedly-local snapshot contained a pointer into
+ shared memory, allowing the client hostname column to change
+ unexpectedly if any existing session disconnected.
+
+
+
+
+ Fix incorrect processing of multiple compound affixes
+ in ispell dictionaries (Arthur Zakirov)
+
+
+
+
+ Fix collation-aware searches (that is, indexscans using inequality
+ operators) in SP-GiST indexes on text columns (Tom Lane)
+
+
+ Such searches would return the wrong set of rows in most non-C
+ locales.
+
+
+
+
+ Prevent query-lifespan memory leakage with SP-GiST operator classes
+ that use traversal values (Anton Dignös)
+
+
+
+
+ Count the number of index tuples correctly during initial build of an
+ SP-GiST index (Tomas Vondra)
+
+
+ Previously, the tuple count was reported to be the same as that of
+ the underlying table, which is wrong if the index is partial.
+
+
+
+
+ Count the number of index tuples correctly during vacuuming of a
+ GiST index (Andrey Borodin)
+
+
+ Previously it reported the estimated number of heap tuples,
+ which might be inaccurate, and is certainly wrong if the
+ index is partial.
+
+
+
+
+ Fix a corner case where a streaming standby gets stuck at a WAL
+ continuation record (Kyotaro Horiguchi)
+
+
+
+
+ In logical decoding, avoid possible double processing of WAL data
+ when a walsender restarts (Craig Ringer)
+
+
+
+
+ Allow scalarltsel
+ and scalargtsel to be used on non-core datatypes
+ (Tomas Vondra)
+
+
+
+
+ Reduce
libpq's memory consumption when a
+ server error is reported after a large amount of query output has
+ been collected (Tom Lane)
+
+
+ Discard the previous output before, not after, processing the error
+ message. On some platforms, notably Linux, this can make a
+ difference in the application's subsequent memory footprint.
+
+
+
+
+ Fix double-free crashes in
ecpg+ (Patrick Krecker, Jeevan Ladhe)
+
+
+
+
+ Fix
ecpg to handle
long long+ int variables correctly in MSVC builds (Michael Meskes,
+ Andrew Gierth)
+
+
+
+
+ Fix mis-quoting of values for list-valued GUC variables in dumps
+ (Michael Paquier, Tom Lane)
+
+
+ The local_preload_libraries,
+ session_preload_libraries,
+ shared_preload_libraries,
+ and temp_tablespaces variables were not correctly
+ quoted in
pg_dump output. This would
+ cause problems if settings for these variables appeared in
+ CREATE FUNCTION ... SET or ALTER
+ DATABASE/ROLE ... SET clauses.
+
+
+
+
+ Fix
pg_recvlogical to not fail against
+ pre-v10
PostgreSQL servers
+ (Michael Paquier)
+
+
+ A previous fix caused
pg_recvlogical to
+ issue a command regardless of server version, but it should only be
+ issued to v10 and later servers.
+
+
+
+
+ Ensure that
pg_rewind deletes files on the
+ target server if they are deleted from the source server during the
+ run (Takayuki Tsunakawa)
+
+
+ Failure to do this could result in data inconsistency on the target,
+ particularly if the file in question is a WAL segment.
+
+
+
+
+ Fix
pg_rewind to handle tables in
+ non-default tablespaces correctly (Takayuki Tsunakawa)
+
+
+
+
+ Fix overflow handling in
PL/pgSQL+ integer FOR loops (Tom Lane)
+
+
+ The previous coding failed to detect overflow of the loop variable
+ on some non-gcc compilers, leading to an infinite loop.
+
+
+
+
+ Adjust
PL/Python regression tests to pass
+ under Python 3.7 (Peter Eisentraut)
+
+
+
+
+ Support testing
PL/Python and related
+ modules when building with Python 3 and MSVC (Andrew Dunstan)
+
+
+
+
+ Fix errors in initial build of contrib/bloom
+ indexes (Tomas Vondra, Tom Lane)
+
+
+ Fix possible omission of the table's last tuple from the index.
+ Count the number of index tuples correctly, in case it is a partial
+ index.
+
+
+
+
+ Rename internal b64_encode
+ and b64_decode functions to avoid conflict with
+ Solaris 11.4 built-in functions (Rainer Orth)
+
+
+
+
+ Sync our copy of the timezone library with IANA tzcode release 2018e
+ (Tom Lane)
+
+
+ This fixes the
zic timezone data compiler
+ to cope with negative daylight-savings offsets. While
+ the
PostgreSQL project will not
+ immediately ship such timezone data,
zic+ might be used with timezone data obtained directly from IANA, so it
+ seems prudent to update
zic now.
+
+
+
+
+ Update time zone data files to
tzdata+ release 2018d for DST law changes in Palestine and Antarctica (Casey
+ Station), plus historical corrections for Portugal and its colonies,
+ as well as Enderbury, Jamaica, Turks & Caicos Islands, and
+ Uruguay.
+
+
+
+
+
+
+
+
Release 9.6.8
projects / postgresql.git / commitdiff