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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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src/include/parser/parsetree.h
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@@ -52,7 +52,7 @@ extern char *get_rte_attribute_name(RangeTblEntry *rte, AttrNumber attnum);
* type and typemod info for that attribute of that RTE.
*/
extern void get_rte_attribute_type(RangeTblEntry *rte, AttrNumber attnum,
Oid *vartype, int32 *vartypmod);
Oid *vartype, int32 *vartypmod, Oid *varcollid);
/*
* Check whether an attribute of an RTE has been dropped (note that