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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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12
src/backend/executor/execTuples.c
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@ -937,11 +937,15 @@ ExecTypeFromTLInternal(List *targetList, bool hasoid, bool skipjunk)
if (skipjunk && tle->resjunk)
continue;
TupleDescInitEntry(typeInfo,
cur_resno++,
cur_resno,
tle->resname,
exprType((Node *) tle->expr),
exprTypmod((Node *) tle->expr),
0);
TupleDescInitEntryCollation(typeInfo,
cur_resno,
exprCollation((Node *) tle->expr));
cur_resno++;
}
return typeInfo;
@ -969,11 +973,15 @@ ExecTypeFromExprList(List *exprList)
sprintf(fldname, "f%d", cur_resno);
TupleDescInitEntry(typeInfo,
cur_resno++,
cur_resno,
fldname,
exprType(e),
exprTypmod(e),
0);
TupleDescInitEntryCollation(typeInfo,
cur_resno,
exprCollation(e));
cur_resno++;
}
return typeInfo;