postgres

History

Tom Lane 3ee8f7e207 Restructure planning code so that preprocessing of targetlist and quals to simplify constant expressions and expand SubLink nodes into SubPlans is done in a separate routine subquery_planner() that calls union_planner(). We formerly did most of this work in query_planner(), but that's the wrong place because it may never see the real targetlist. Splitting union_planner into two routines also allows us to avoid redundant work when union_planner is invoked recursively for UNION and inheritance cases. Upshot is that it is now possible to do something like select float8(count()) / (select count() from int4_tbl) from int4_tbl group by f1; which has never worked before.		26 years ago
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_deadcode	Add:	26 years ago
clauses.h	Restructure planning code so that preprocessing of targetlist and quals	26 years ago
cost.h	New cost model for planning, incorporating a penalty for random page	26 years ago
geqo.h	Add:	26 years ago
geqo_copy.h	Add:	26 years ago
geqo_gene.h	Add:	26 years ago
geqo_misc.h	Add:	26 years ago
geqo_mutation.h	Add:	26 years ago
geqo_pool.h	Add:	26 years ago
geqo_random.h	Add:	26 years ago
geqo_recombination.h	Add:	26 years ago
geqo_selection.h	Add:	26 years ago
internal.h	Add:	26 years ago
joininfo.h	Add:	26 years ago
pathnode.h	New cost model for planning, incorporating a penalty for random page	26 years ago
paths.h	New cost model for planning, incorporating a penalty for random page	26 years ago
plancat.h	Add:	26 years ago
planmain.h	New cost model for planning, incorporating a penalty for random page	26 years ago
planner.h	Restructure planning code so that preprocessing of targetlist and quals	26 years ago
prep.h	Add:	26 years ago
restrictinfo.h	Add:	26 years ago
subselect.h	Fix a bunch of minor portability problems and maybe-bugs revealed by	26 years ago
tlist.h	Redesign DISTINCT ON as discussed in pgsql-sql 1/25/00: syntax is now	26 years ago
var.h	Add:	26 years ago