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Add expected tuple descriptor to ReturnSetInfo information for table

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functions, per suggestion from John Gray and Joe Conway.  Also, fix
plpgsql RETURN NEXT to verify that returned values match the expected
tupdesc.
This commit is contained in:
Tom Lane
2002-08-30 23:59:46 +00:00
parent 9c279355fb
commit 7bacf2befa
6 changed files with 113 additions and 74 deletions
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12
src/include/nodes/execnodes.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: execnodes.h,v 1.73 2002/08/30 00:28:41 tgl Exp $
* $Id: execnodes.h,v 1.74 2002/08/30 23:59:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -147,12 +147,16 @@ typedef enum
typedef struct ReturnSetInfo
{
NodeTag type;
/* values set by caller: */
ExprContext *econtext; /* context function is being called in */
TupleDesc expectedDesc; /* tuple descriptor expected by caller */
int allowedModes; /* bitmask: return modes caller can handle */
SetFunctionReturnMode returnMode; /* actual return mode */
/* result status from function (but pre-initialized by caller): */
SetFunctionReturnMode returnMode; /* actual return mode */
ExprDoneCond isDone; /* status for ValuePerCall mode */
Tuplestorestate *setResult; /* return object for Materialize mode */
TupleDesc setDesc; /* descriptor for Materialize mode */
/* fields filled by function in Materialize return mode: */
Tuplestorestate *setResult; /* holds the complete returned tuple set */
TupleDesc setDesc; /* actual descriptor for returned tuples */
} ReturnSetInfo;
/* ----------------