postgres

History

Tom Lane 6543d81d65 Restructure handling of inheritance queries so that they work with outer joins, and clean things up a good deal at the same time. Append plan node no longer hacks on rangetable at runtime --- instead, all child tables are given their own RT entries during planning. Concept of multiple target tables pushed up into execMain, replacing bug-prone implementation within nodeAppend. Planner now supports generating Append plans for inheritance sets either at the top of the plan (the old way) or at the bottom. Expanding at the bottom is appropriate for tables used as sources, since they may appear inside an outer join; but we must still expand at the top when the target of an UPDATE or DELETE is an inheritance set, because we actually need a different targetlist and junkfilter for each target table in that case. Fortunately a target table can't be inside an outer join... Bizarre mutual recursion between union_planner and prepunion.c is gone --- in fact, union_planner doesn't really have much to do with union queries anymore, so I renamed it grouping_planner.		25 years ago
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_deadcode	Add:	26 years ago
Makefile	Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in	25 years ago
execAmi.c	Make DROP TABLE rollback-able: postpone physical file delete until commit.	25 years ago
execFlatten.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
execJunk.c	Add:	26 years ago
execMain.c	Restructure handling of inheritance queries so that they work with outer	25 years ago
execProcnode.c	Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in	25 years ago
execQual.c	Restructure handling of inheritance queries so that they work with outer	25 years ago
execScan.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
execTuples.c	Restructure handling of inheritance queries so that they work with outer	25 years ago
execUtils.c	Restructure handling of inheritance queries so that they work with outer	25 years ago
functions.c	Restructure handling of inheritance queries so that they work with outer	25 years ago
nodeAgg.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
nodeAppend.c	Restructure handling of inheritance queries so that they work with outer	25 years ago
nodeGroup.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
nodeHash.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
nodeHashjoin.c	First cut at full support for OUTER JOINs. There are still a few loose	25 years ago
nodeIndexscan.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
nodeLimit.c	Allow ORDER BY, LIMIT in sub-selects. Fix most (not all) cases where	25 years ago
nodeMaterial.c	First stage of reclaiming memory in executor by resetting short-term	26 years ago
nodeMergejoin.c	First cut at full support for OUTER JOINs. There are still a few loose	25 years ago
nodeNestloop.c	First cut at full support for OUTER JOINs. There are still a few loose	25 years ago
nodeResult.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
nodeSeqscan.c	Restructure handling of inheritance queries so that they work with outer	25 years ago
nodeSetOp.c	Reimplementation of UNION/INTERSECT/EXCEPT. INTERSECT/EXCEPT now meet the	25 years ago
nodeSort.c	First stage of reclaiming memory in executor by resetting short-term	26 years ago
nodeSubplan.c	Reimplementation of UNION/INTERSECT/EXCEPT. INTERSECT/EXCEPT now meet the	25 years ago
nodeSubqueryscan.c	Reimplementation of UNION/INTERSECT/EXCEPT. INTERSECT/EXCEPT now meet the	25 years ago
nodeTidscan.c	SQL-language functions are now callable in ordinary fmgr contexts ...	25 years ago
nodeUnique.c	First stage of reclaiming memory in executor by resetting short-term	26 years ago
spi.c	Re-implement LIMIT/OFFSET as a plan node type, instead of a hack in	25 years ago