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Add an "argisrow" field to NullTest nodes, following a plan made way back in

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8.2beta but never carried out.  This avoids repetitive tests of whether the
argument is of scalar or composite type.  Also, be a bit more paranoid about
composite arguments in some places where we previously weren't checking.
This commit is contained in:
Tom Lane
2010-01-01 23:03:10 +00:00
parent 29c4ad9829
commit 7839d35991
14 changed files with 41 additions and 30 deletions
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5
src/include/nodes/execnodes.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.214 2009/12/15 04:57:48 rhaas Exp $
* $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.215 2010/01/01 23:03:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -886,8 +886,7 @@ typedef struct NullTestState
{
ExprState xprstate;
ExprState *arg; /* input expression */
bool argisrow; /* T if input is of a composite type */
/* used only if argisrow: */
/* used only if input is of composite type: */
TupleDesc argdesc; /* tupdesc for most recent input */
} NullTestState;