Tom Lane bdfbfde1b1 IN clauses appearing at top level of WHERE can now be handled as joins. ... There are two implementation techniques: the executor understands a new JOIN_IN jointype, which emits at most one matching row per left-hand row, or the result of the IN's sub-select can be fed through a DISTINCT filter and then joined as an ordinary relation. Along the way, some minor code cleanup in the optimizer; notably, break out most of the jointree-rearrangement preprocessing in planner.c and put it in a new file prep/prepjointree.c.		2003-01-20 18:55:07 +00:00
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clauses.h	Fix parse_agg.c to detect ungrouped Vars in sub-SELECTs; remove code	2003-01-17 03:25:04 +00:00
cost.h	Revise cost_qual_eval() to compute both startup (one-time) and per-tuple	2003-01-12 22:35:29 +00:00
geqo_copy.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
geqo_gene.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
geqo_misc.h	First phase of implementing hash-based grouping/aggregation. An AGG plan	2002-11-06 00:00:45 +00:00
geqo_mutation.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
geqo_pool.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
geqo_random.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
geqo_recombination.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
geqo_selection.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
geqo.h	Fix GEQO to work again in CVS tip, by being more careful about memory	2002-12-16 21:30:30 +00:00
joininfo.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
pathnode.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
paths.h	Fix GEQO to work again in CVS tip, by being more careful about memory	2002-12-16 21:30:30 +00:00
plancat.h	Update copyright to 2002.	2002-06-20 20:29:54 +00:00
planmain.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
planner.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
prep.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
restrictinfo.h	Restructure planning of nestloop inner indexscans so that the set of usable	2002-11-24 21:52:15 +00:00
subselect.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
tlist.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
var.h	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00