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Code Activity

Clean up some minor problems exposed by further thought about Panon's bug

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report on old-style functions invoked by RI triggers.  We had a number of
other places that were being sloppy about which memory context FmgrInfo
subsidiary data will be allocated in.  Turns out none of them actually
cause a problem in 7.1, but this is for arcane reasons such as the fact
that old-style triggers aren't supported anyway.  To avoid getting burnt
later, I've restructured the trigger support so that we don't keep trigger
FmgrInfo structs in relcache memory.  Some other related cleanups too:
it's not really necessary to call fmgr_info at all while setting up
the index support info in relcache entries, because those ScanKeyEntry
structs are never used to invoke the functions.  This should speed up
relcache initialization a tiny bit.
This commit is contained in:
Tom Lane
2001-06-01 02:41:36 +00:00
parent a1d9d096f0
commit 0b370ea7c8
16 changed files with 448 additions and 298 deletions
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14
src/include/nodes/execnodes.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: execnodes.h,v 1.60 2001/05/27 20:48:51 tgl Exp $
* $Id: execnodes.h,v 1.61 2001/06/01 02:41:36 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -198,16 +198,18 @@ typedef struct JunkFilter
/* ----------------
* ResultRelInfo information
*
* whenever we update an existing relation, we have to
* update indices on the relation. The ResultRelInfo class
* is used to hold all the information on result relations,
* including indices.. -cim 10/15/89
* Whenever we update an existing relation, we have to
* update indices on the relation, and perhaps also fire triggers.
* The ResultRelInfo class is used to hold all the information needed
* about a result relation, including indices.. -cim 10/15/89
*
* RangeTableIndex result relation's range table index
* RelationDesc relation descriptor for result relation
* NumIndices # of indices existing on result relation
* IndexRelationDescs array of relation descriptors for indices
* IndexRelationInfo array of key/attr info for indices
* TrigDesc triggers to be fired, if any
* TrigFunctions cached lookup info for trigger functions
* ConstraintExprs array of constraint-checking expressions
* junkFilter for removing junk attributes from tuples
* ----------------
@ -220,6 +222,8 @@ typedef struct ResultRelInfo
int ri_NumIndices;
RelationPtr ri_IndexRelationDescs;
IndexInfo **ri_IndexRelationInfo;
TriggerDesc *ri_TrigDesc;
FmgrInfo *ri_TrigFunctions;
List **ri_ConstraintExprs;
JunkFilter *ri_junkFilter;
} ResultRelInfo;