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Tom Lane c8151e6423 Don't copy PartitionBoundInfo in set_relation_partition_info. 
I (tgl) remain dubious that it's a good idea for PartitionDirectory
to hold a pin on a relcache entry throughout planning, rather than
copying the data or using some kind of refcount scheme.  However, it's
certainly the responsibility of the PartitionDirectory code to ensure
that what it's handing back is a stable data structure, not that of
its caller.  So this is a pretty clear oversight in commit 898e5e329,
and one that can cost a lot of performance when there are many
partitions.

Amit Langote (extracted from a much larger patch set)

Discussion: https://postgr.es/m/CA+TgmoY3bRmGB6-DUnoVy5fJoreiBJ43rwMrQRCdPXuKt4Ykaw@mail.gmail.com
Discussion: https://postgr.es/m/9d7c5112-cb99-6a47-d3be-cf1ee6862a1d@lab.ntt.co.jp
2019-03-22 14:16:58 -04:00
..
backend Don't copy PartitionBoundInfo in set_relation_partition_info. 2019-03-22 14:16:58 -04:00
bin Collations with nondeterministic comparison 2019-03-22 12:12:43 +01:00
common Refactor more code logic to update the control file 2019-03-18 12:59:35 +09:00
fe_utils More unconstify use 2019-02-13 11:50:16 +01:00
include Delete empty pages during GiST VACUUM. 2019-03-22 13:21:45 +02:00
interfaces Restructure libpq's handling of send failures. 2019-03-19 16:20:28 -04:00
makefiles Move port-specific parts of with_temp_install to port makefile. 2019-02-04 18:54:56 +00:00
pl PL/Tcl: Improve trigger tests organization 2019-03-15 12:42:07 +01:00
port Fix error handling of readdir() port implementation on first file lookup 2019-03-04 09:49:06 +09:00
template Yet further rethinking of build changes for macOS Mojave. 2018-11-02 18:54:00 -04:00
test Fix yet more portability bugs in integerset and its tests. 2019-03-22 17:59:19 +02:00
timezone More unconstify use 2019-02-13 11:50:16 +01:00
tools Get rid of jsonpath_gram.h and jsonpath_scanner.h 2019-03-20 11:13:34 +03:00
tutorial SQL comment: remove extra word in heading comment 2019-01-25 18:57:21 -05:00
.gitignore
DEVELOPERS
Makefile Fix partial-build problems introduced by having more generated headers. 2018-04-09 16:42:10 -04:00
Makefile.global.in Revert attempts to use POPCNT etc instructions 2019-02-15 16:32:30 -03:00
Makefile.shlib Ensure static libraries have correct mod time even if ranlib messes it up. 2018-11-29 15:53:44 -05:00
nls-global.mk Replace @postgresql.org with @lists.postgresql.org for mailinglists 2019-01-19 19:06:35 +01:00