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Tomas Vondra 8f321bd16c Use functional dependencies to estimate ScalarArrayOpExpr ... Until now functional dependencies supported only simple equality clauses and clauses that can be trivially translated to equalities. This commit allows estimation of some ScalarArrayOpExpr (IN/ANY) clauses. For IN clauses we can do this thanks to using operator with equality semantics, which means an IN clause WHERE c IN (1, 2, ..., N) can be translated to WHERE (c = 1 OR c = 2 OR ... OR c = N) IN clauses are now considered compatible with functional dependencies, and rely on the same assumption of consistency of queries with data (which is an assumption we already used for simple equality clauses). This applies also to ALL clauses with an equality operator, which can be considered equivalent to IN clause. ALL clauses are still considered incompatible, although there's some discussion about maybe relaxing this in the future. Author: Pierre Ducroquet Reviewed-by: Tomas Vondra, Dean Rasheed Discussion: https://www.postgresql.org/message-id/flat/13902317.Eha0YfKkKy%40pierred-pdoc		6 years ago
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backend	Use functional dependencies to estimate ScalarArrayOpExpr	6 years ago
bin	Add pg_dump support for ALTER obj DEPENDS ON EXTENSION	6 years ago
common	Allow Unicode escapes in any server encoding, not only UTF-8.	6 years ago
fe_utils	Fix bug in pg_basebackup -F plain -R.	6 years ago
include	Remove am_syslogger global variable	6 years ago
interfaces	Fix issues around .pgpass file.	6 years ago
makefiles	Remove libpq.rc, use win32ver.rc for libpq	6 years ago
pl	Remove utils/acl.h from catalog/objectaddress.h	6 years ago
port	Remove win32ver.rc from version_stamp.pl	6 years ago
template	Fix compiler warning for ppoll() on Cygwin	6 years ago
test	Use functional dependencies to estimate ScalarArrayOpExpr	6 years ago
timezone	Require stdint.h	6 years ago
tools	Remove win32ver.rc from version_stamp.pl	6 years ago
tutorial	Update copyrights for 2020	6 years ago
.gitignore	…
DEVELOPERS	…
Makefile	…
Makefile.global.in	Add PostgreSQL home page to --help output	6 years ago
Makefile.shlib	Add PostgreSQL home page to --help output	6 years ago
nls-global.mk	…