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Cope with NoData message from backend. Needed for case where

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PQexecParams is used with a statement that doesn't return data.
This commit is contained in:
Tom Lane 2003-08-12 21:34:44 +00:00
parent b6e5823eda
commit 90ade5b775
1 changed files with 13 additions and 3 deletions
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16
src/interfaces/libpq/fe-protocol3.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-protocol3.c,v 1.6 2003/08/04 02:40:20 momjian Exp $
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-protocol3.c,v 1.7 2003/08/12 21:34:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -232,8 +232,7 @@ pqParseInput3(PGconn *conn)
if (pqGetInt(&(conn->be_key), 4, conn))
return;
break;
case 'T': /* row descriptions (start of query
* results) */
case 'T': /* Row Description */
if (conn->result == NULL)
{
/* First 'T' in a query sequence */
@ -253,6 +252,17 @@ pqParseInput3(PGconn *conn)
return;
}
break;
case 'n': /* No Data */
/*
* NoData indicates that we will not be seeing a
* RowDescription message because the statement or
* portal inquired about doesn't return rows.
* Set up a COMMAND_OK result, instead of TUPLES_OK.
*/
if (conn->result == NULL)
conn->result = PQmakeEmptyPGresult(conn,
PGRES_COMMAND_OK);
break;
case 'D': /* Data Row */
if (conn->result != NULL &&
conn->result->resultStatus == PGRES_TUPLES_OK)