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When the RI triggers lock the PK table, temporarily switch the current user

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id to the owner of the PK table, to avoid permission problems.
This commit is contained in:
Peter Eisentraut 2000-09-25 22:34:20 +00:00
parent f428d053ce
commit c0cba9efe7
1 changed files with 35 additions and 1 deletions
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36
src/backend/utils/adt/ri_triggers.c
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@ -6,7 +6,7 @@
*
* 1999 Jan Wieck
*
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ri_triggers.c,v 1.16 2000/05/30 00:49:53 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ri_triggers.c,v 1.17 2000/09/25 22:34:20 petere Exp $
*
* ----------
*/
@ -24,6 +24,7 @@
#include "catalog/pg_operator.h"
#include "commands/trigger.h"
#include "executor/spi_priv.h"
#include "miscadmin.h"
/* ----------
@ -158,6 +159,9 @@ RI_FKey_check(PG_FUNCTION_ARGS)
bool isnull;
int i;
int match_type;
Oid save_uid;
save_uid = GetUserId();
ReferentialIntegritySnapshotOverride = true;
@ -252,9 +256,13 @@ RI_FKey_check(PG_FUNCTION_ARGS)
if (SPI_connect() != SPI_OK_CONNECT)
elog(NOTICE, "SPI_connect() failed in RI_FKey_check()");
SetUserId(RelationGetForm(pk_rel)->relowner);
if (SPI_execp(qplan, check_values, check_nulls, 1) != SPI_OK_SELECT)
elog(ERROR, "SPI_execp() failed in RI_FKey_check()");
SetUserId(save_uid);
if (SPI_processed == 0)
elog(ERROR, "%s referential integrity violation - "
"no rows found in %s",
@ -435,9 +443,14 @@ RI_FKey_check(PG_FUNCTION_ARGS)
* Now check that foreign key exists in PK table
* ----------
*/
SetUserId(RelationGetForm(pk_rel)->relowner);
if (SPI_execp(qplan, check_values, check_nulls, 1) != SPI_OK_SELECT)
elog(ERROR, "SPI_execp() failed in RI_FKey_check()");
SetUserId(save_uid);
if (SPI_processed == 0)
elog(ERROR, "%s referential integrity violation - "
"key referenced from %s not found in %s",
@ -508,6 +521,9 @@ RI_FKey_noaction_del(PG_FUNCTION_ARGS)
char del_nulls[RI_MAX_NUMKEYS + 1];
bool isnull;
int i;
Oid save_uid;
save_uid = GetUserId();
ReferentialIntegritySnapshotOverride = true;
@ -659,9 +675,13 @@ RI_FKey_noaction_del(PG_FUNCTION_ARGS)
* Now check for existing references
* ----------
*/
SetUserId(RelationGetForm(pk_rel)->relowner);
if (SPI_execp(qplan, del_values, del_nulls, 1) != SPI_OK_SELECT)
elog(ERROR, "SPI_execp() failed in RI_FKey_noaction_del()");
SetUserId(save_uid);
if (SPI_processed > 0)
elog(ERROR, "%s referential integrity violation - "
"key in %s still referenced from %s",
@ -716,6 +736,9 @@ RI_FKey_noaction_upd(PG_FUNCTION_ARGS)
char upd_nulls[RI_MAX_NUMKEYS + 1];
bool isnull;
int i;
Oid save_uid;
save_uid = GetUserId();
ReferentialIntegritySnapshotOverride = true;
@ -876,9 +899,13 @@ RI_FKey_noaction_upd(PG_FUNCTION_ARGS)
* Now check for existing references
* ----------
*/
SetUserId(RelationGetForm(pk_rel)->relowner);
if (SPI_execp(qplan, upd_values, upd_nulls, 1) != SPI_OK_SELECT)
elog(ERROR, "SPI_execp() failed in RI_FKey_noaction_upd()");
SetUserId(save_uid);
if (SPI_processed > 0)
elog(ERROR, "%s referential integrity violation - "
"key in %s still referenced from %s",
@ -1570,6 +1597,9 @@ RI_FKey_restrict_upd(PG_FUNCTION_ARGS)
char upd_nulls[RI_MAX_NUMKEYS + 1];
bool isnull;
int i;
Oid save_uid;
save_uid = GetUserId();
ReferentialIntegritySnapshotOverride = true;
@ -1730,9 +1760,13 @@ RI_FKey_restrict_upd(PG_FUNCTION_ARGS)
* Now check for existing references
* ----------
*/
SetUserId(RelationGetForm(pk_rel)->relowner);
if (SPI_execp(qplan, upd_values, upd_nulls, 1) != SPI_OK_SELECT)
elog(ERROR, "SPI_execp() failed in RI_FKey_restrict_upd()");
SetUserId(save_uid);
if (SPI_processed > 0)
elog(ERROR, "%s referential integrity violation - "
"key in %s still referenced from %s",