Tom Lane 05e3d0ee86 Reimplementation of UNION/INTERSECT/EXCEPT. INTERSECT/EXCEPT now meet the ... SQL92 semantics, including support for ALL option. All three can be used in subqueries and views. DISTINCT and ORDER BY work now in views, too. This rewrite fixes many problems with cross-datatype UNIONs and INSERT/SELECT where the SELECT yields different datatypes than the INSERT needs. I did that by making UNION subqueries and SELECT in INSERT be treated like subselects-in-FROM, thereby allowing an extra level of targetlist where the datatype conversions can be inserted safely. INITDB NEEDED!		2000-10-05 19:11:39 +00:00
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_deadcode	Ye-old pgindent run. Same 4-space tabs.	2000-04-12 17:17:23 +00:00
Makefile	Fix relative path references so that make knowns which dependencies refer	2000-08-31 16:12:35 +00:00
allpaths.c	Reimplementation of UNION/INTERSECT/EXCEPT. INTERSECT/EXCEPT now meet the	2000-10-05 19:11:39 +00:00
clausesel.c	Clean up handling of variable-free qual clauses. System now does the	2000-08-13 02:50:35 +00:00
costsize.c	Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.	2000-09-29 18:21:41 +00:00
indxpath.c	Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.	2000-09-29 18:21:41 +00:00
joinpath.c	Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.	2000-09-29 18:21:41 +00:00
joinrels.c	Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.	2000-09-29 18:21:41 +00:00
orindxpath.c	First cut at full support for OUTER JOINs. There are still a few loose	2000-09-12 21:07:18 +00:00
pathkeys.c	Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.	2000-09-29 18:21:41 +00:00
tidpath.c	Remove unused include files. Do not touch /port or includes used by defines.	2000-05-30 00:49:57 +00:00