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Per-column collation support

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This adds collation support for columns and domains, a COLLATE clause
to override it per expression, and B-tree index support.

Peter Eisentraut
reviewed by Pavel Stehule, Itagaki Takahiro, Robert Haas, Noah Misch
This commit is contained in:
Peter Eisentraut
2011-02-08 23:04:18 +02:00
parent 1703f0e8da
commit 414c5a2ea6
156 changed files with 4519 additions and 582 deletions
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4
contrib/btree_gin/btree_gin.c
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@ -7,6 +7,7 @@
#include "fmgr.h"
#include "access/skey.h"
#include "catalog/pg_collation.h"
#include "utils/builtins.h"
#include "utils/bytea.h"
#include "utils/cash.h"
@ -120,8 +121,9 @@ gin_compare_prefix_##type(PG_FUNCTION_ARGS) \
int32 res, \
cmp; \
\
cmp = DatumGetInt32(DirectFunctionCall2( \
cmp = DatumGetInt32(DirectFunctionCall2WithCollation( \
TypeInfo_##type.typecmp, \
DEFAULT_COLLATION_OID, \
(data->strategy == BTLessStrategyNumber || \
data->strategy == BTLessEqualStrategyNumber) \
? data->datum : a, \