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From: wieck@sapserv.debis.de

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Hi,

    counting the empty dummy queries in libpq isn't everything.
    If the backend sends an error, the I returns from the dummies
    still come. So we must eat them up in any case, not just
    returning on the occurence of an E reply.

Until later, Jan
This commit is contained in:
Marc G. Fournier 1997-01-08 23:25:32 +00:00
parent 16293d05e0
commit 389e336ca9
1 changed files with 21 additions and 5 deletions
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26
src/interfaces/libpq/fe-exec.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.26 1996/12/31 07:29:15 bryanh Exp $
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.27 1997/01/08 23:25:32 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
@ -380,6 +380,10 @@ process_response_from_backend(FILE *pfin, FILE *pfout, FILE *pfdebug,
responses, less the number of corresponding responses we have
received.
*/
int errors;
/* If an error is received, we must still drain out the empty
queries sent. So we need another flag.
*/
char cmdStatus[MAX_MESSAGE_LEN];
char pname[MAX_MESSAGE_LEN]; /* portal name */
@ -388,6 +392,7 @@ process_response_from_backend(FILE *pfin, FILE *pfout, FILE *pfdebug,
*/
emptiesSent = 0; /* No empty queries sent yet */
errors = 0; /* No errors received yet */
pname[0] = '\0';
done = false; /* initial value */
@ -444,7 +449,10 @@ process_response_from_backend(FILE *pfin, FILE *pfout, FILE *pfdebug,
"but attempt to read the error message failed.");
}
*result_p = (PGresult*)NULL;
done = true;
errors++;
if (emptiesSent == 0) {
done = true;
}
break;
case 'I': { /* empty query */
/* read and throw away the closing '\0' */
@ -458,13 +466,21 @@ process_response_from_backend(FILE *pfin, FILE *pfout, FILE *pfdebug,
* If this is the result of a portal query command set the
* command status and message accordingly. DZ - 31-8-1996
*/
*result_p = makeEmptyPGresult(conn,PGRES_COMMAND_OK);
strncpy((*result_p)->cmdStatus, cmdStatus, CMDSTATUS_LEN-1);
if (!errors) {
*result_p = makeEmptyPGresult(conn,PGRES_COMMAND_OK);
strncpy((*result_p)->cmdStatus, cmdStatus, CMDSTATUS_LEN-1);
} else {
*result_p = (PGresult*)NULL;
}
done = true;
}
}
else {
*result_p = makeEmptyPGresult(conn, PGRES_EMPTY_QUERY);
if (!errors) {
*result_p = makeEmptyPGresult(conn, PGRES_EMPTY_QUERY);
} else {
*result_p = (PGresult*)NULL;
}
done = true;
}
}