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Create a 'type cache' that keeps track of the data needed for any particular
datatype by array_eq and array_cmp; use this to solve problems with memory leaks in array indexing support. The parser's equality_oper and ordering_oper routines also use the cache. Change the operator search algorithms to look for appropriate btree or hash index opclasses, instead of assuming operators named '<' or '=' have the right semantics. (ORDER BY ASC/DESC now also look at opclasses, instead of assuming '<' and '>' are the right things.) Add several more index opclasses so that there is no regression in functionality for base datatypes. initdb forced due to catalog additions.
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.105 2003/08/04 02:39:58 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.106 2003/08/17 19:58:04 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -529,7 +529,8 @@ GetDefaultOpClass(Oid attrType, Oid accessMethodId)
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* than one exact match, then someone put bogus entries in pg_opclass.
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*
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* The initial search is done by namespace.c so that we only consider
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* opclasses visible in the current namespace search path.
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* opclasses visible in the current namespace search path. (See also
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* typcache.c, which applies the same logic, but over all opclasses.)
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*/
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for (opclass = OpclassGetCandidates(accessMethodId);
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opclass != NULL;
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