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Create a 'type cache' that keeps track of the data needed for any particular

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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.
This commit is contained in:
Tom Lane
2003-08-17 19:58:06 +00:00
parent d89578ccbe
commit ec646dbc65
40 changed files with 968 additions and 495 deletions
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src/include/utils/cash.h
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@@ -23,6 +23,7 @@ extern Datum cash_lt(PG_FUNCTION_ARGS);
extern Datum cash_le(PG_FUNCTION_ARGS);
extern Datum cash_gt(PG_FUNCTION_ARGS);
extern Datum cash_ge(PG_FUNCTION_ARGS);
extern Datum cash_cmp(PG_FUNCTION_ARGS);
extern Datum cash_pl(PG_FUNCTION_ARGS);
extern Datum cash_mi(PG_FUNCTION_ARGS);