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Tom Lane 2f153ddfdd Refactor to reduce code duplication for function property checking. ... As noted by Andres Freund, we'd accumulated quite a few similar functions in clauses.c that examine all functions in an expression tree to see if they satisfy some boolean test. Reduce the duplication by inventing a function check_functions_in_node() that applies a simple callback function to each SQL function OID appearing in a given expression node. This also fixes some arguable oversights; for example, contain_mutable_functions() did not check aggregate or window functions for mutability. I doubt that that represents a live bug at the moment, because we don't really consider mutability for aggregates; but it might someday be one. I chose to put check_functions_in_node() in nodeFuncs.c because it seemed like other modules might wish to use it in future. That in turn forced moving set_opfuncid() et al into nodeFuncs.c, as the alternative was for nodeFuncs.c to depend on optimizer/setrefs.c which didn't seem very clean. In passing, teach contain_leaked_vars_walker() about a few more expression node types it can safely look through, and improve the rather messy and undercommented code in has_parallel_hazard_walker(). Discussion: <20160527185853.ziol2os2zskahl7v@alap3.anarazel.de>		10 years ago
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backend	Refactor to reduce code duplication for function property checking.	10 years ago
bin	pgindent run for 9.6	10 years ago
common	pgindent run for 9.6	10 years ago
fe_utils	Fix comment.	10 years ago
include	Refactor to reduce code duplication for function property checking.	10 years ago
interfaces	pgindent run for 9.6	10 years ago
makefiles	…
pl	pgindent run for 9.6	10 years ago
port	pgindent run for 9.6	10 years ago
template	…
test	pgindent run for 9.6	10 years ago
timezone	Update time zone data files to tzdata release 2016d.	10 years ago
tools	Yet again update typedefs.list file in preparation for pgindent run	10 years ago
tutorial	…
.gitignore	…
DEVELOPERS	…
Makefile	Create src/fe_utils/, and move stuff into there from pg_dump's dumputils.	10 years ago
Makefile.global.in	Create src/fe_utils/, and move stuff into there from pg_dump's dumputils.	10 years ago
Makefile.shlib	…
bcc32.mak	…
nls-global.mk	nls-global.mk: search build dir for source files, too	10 years ago
win32.mak	…