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Fix a couple of places where psql might fail to report a suitable error

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if PQexec returns NULL.  These don't seem significant enough to be worth
back-patching, but they ought to get fixed ...
This commit is contained in:
Tom Lane
2008-08-16 01:36:35 +00:00
parent b9984ade83
commit 63c3b9903b
2 changed files with 32 additions and 21 deletions
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45
src/bin/psql/common.c
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@@ -3,7 +3,7 @@
*
* Copyright (c) 2000-2008, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/common.c,v 1.139 2008/05/14 19:10:29 tgl Exp $
* $PostgreSQL: pgsql/src/bin/psql/common.c,v 1.140 2008/08/16 01:36:35 tgl Exp $
*/
#include "postgres_fe.h"
#include "common.h"
@@ -880,16 +880,20 @@ SendQuery(const char *query)
/* If we made a temporary savepoint, possibly release/rollback */
if (on_error_rollback_savepoint)
{
PGresult *svptres;
const char *svptcmd;
transaction_status = PQtransactionStatus(pset.db);
/* We always rollback on an error */
if (transaction_status == PQTRANS_INERROR)
svptres = PQexec(pset.db, "ROLLBACK TO pg_psql_temporary_savepoint");
/* If they are no longer in a transaction, then do nothing */
{
/* We always rollback on an error */
svptcmd = "ROLLBACK TO pg_psql_temporary_savepoint";
}
else if (transaction_status != PQTRANS_INTRANS)
svptres = NULL;
{
/* If they are no longer in a transaction, then do nothing */
svptcmd = NULL;
}
else
{
/*
@@ -901,20 +905,27 @@ SendQuery(const char *query)
(strcmp(PQcmdStatus(results), "SAVEPOINT") == 0 ||
strcmp(PQcmdStatus(results), "RELEASE") == 0 ||
strcmp(PQcmdStatus(results), "ROLLBACK") == 0))
svptres = NULL;
svptcmd = NULL;
else
svptres = PQexec(pset.db, "RELEASE pg_psql_temporary_savepoint");
}
if (svptres && PQresultStatus(svptres) != PGRES_COMMAND_OK)
{
psql_error("%s", PQerrorMessage(pset.db));
PQclear(results);
PQclear(svptres);
ResetCancelConn();
return false;
svptcmd = "RELEASE pg_psql_temporary_savepoint";
}
PQclear(svptres);
if (svptcmd)
{
PGresult *svptres;
svptres = PQexec(pset.db, svptcmd);
if (PQresultStatus(svptres) != PGRES_COMMAND_OK)
{
psql_error("%s", PQerrorMessage(pset.db));
PQclear(svptres);
PQclear(results);
ResetCancelConn();
return false;
}
PQclear(svptres);
}
}
PQclear(results);