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Small refactoring of makeVar() from a TargetEntry

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This commit is contained in:
Peter Eisentraut
2010-08-27 20:30:08 +00:00
parent c10575ff00
commit 2355b69b1e
8 changed files with 37 additions and 56 deletions
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19
src/backend/nodes/makefuncs.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/makefuncs.c,v 1.66 2010/01/02 16:57:46 momjian Exp $
* $PostgreSQL: pgsql/src/backend/nodes/makefuncs.c,v 1.67 2010/08/27 20:30:07 petere Exp $
*
*-------------------------------------------------------------------------
*/
@ -17,6 +17,7 @@
#include "catalog/pg_type.h"
#include "nodes/makefuncs.h"
#include "nodes/nodeFuncs.h"
#include "utils/lsyscache.h"
@ -90,6 +91,22 @@ makeVar(Index varno,
return var;
}
/*
* makeVarFromTargetEntry -
* convenience function to create a same-level Var node from a
* TargetEntry
*/
Var *
makeVarFromTargetEntry(Index varno,
TargetEntry *tle)
{
return makeVar(varno,
tle->resno,
exprType((Node *) tle->expr),
exprTypmod((Node *) tle->expr),
0);
}
/*
* makeTargetEntry -
* creates a TargetEntry node