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Make fixed_paramref_hook behave properly when there are 'unused' slots

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in the parameter array.  Noted while experimenting with an example
from Pavel.  This wouldn't come up in normal use, but it ought to honor
the specification that a parameter array can have unused slots.
This commit is contained in:
Tom Lane 2010-01-13 01:17:07 +00:00
parent b2aab42467
commit 43a9a2fb89
1 changed files with 4 additions and 3 deletions
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7
src/backend/parser/parse_param.c
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@ -17,7 +17,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parse_param.c,v 2.2 2010/01/02 16:57:50 momjian Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_param.c,v 2.3 2010/01/13 01:17:07 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -100,8 +100,9 @@ fixed_paramref_hook(ParseState *pstate, ParamRef *pref)
int paramno = pref->number;
Param *param;
/* Check parameter number is in range */
if (paramno <= 0 || paramno > parstate->numParams)
/* Check parameter number is valid */
if (paramno <= 0 || paramno > parstate->numParams ||
!OidIsValid(parstate->paramTypes[paramno - 1]))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_PARAMETER),
errmsg("there is no parameter $%d", paramno),