static void
CheckAndCreateToastTable(Oid relOid, Datum reloptions, LOCKMODE lockmode, bool check)
{
Relation rel;
rel = heap_open(relOid, lockmode);
/* create_toast_table does all the work */
(void) create_toast_table(rel, InvalidOid, InvalidOid, reloptions, lockmode, check);
heap_close(rel, NoLock);
}
/*
* AlterTableCreateToastTable
* If the table needs a toast table, and doesn't already have one,
* then create a toast table for it.
*
* reloptions for the toast table can be passed, too. Pass (Datum) 0
* for default reloptions.
*
* We expect the caller to have verified that the relation is a table and have
* already done any necessary permission checks. Callers expect this function
* to end with CommandCounterIncrement if it makes any changes.
*/
void
AlterTableCreateToastTable(Oid relOid, Datum reloptions)
{
Relation rel;
/*
* Grab an exclusive lock on the target table, since we'll update its
* pg_class tuple. This is redundant for all present uses, since caller
* will have such a lock already. But the lock is needed to ensure that
* concurrent readers of the pg_class tuple won't have visibility issues,
* so let's be safe.
*/
rel = heap_open(relOid, AccessExclusiveLock);
/* create_toast_table does all the work */
(void) create_toast_table(rel, InvalidOid, InvalidOid, reloptions);
heap_close(rel, NoLock);
}
/*
* AlterTableCreateToastTable
* If the table needs a toast table, and doesn't already have one,
* then create a toast table for it.
*
* We expect the caller to have verified that the relation is a table and have
* already done any necessary permission checks. Callers expect this function
* to end with CommandCounterIncrement if it makes any changes.
*/
void
AlterTableCreateToastTable(Oid relOid, bool is_part_child)
{
Relation rel;
/*
* Grab an exclusive lock on the target table, which we will NOT release
* until end of transaction. (This is probably redundant in all present
* uses...)
*/
if (is_part_child)
rel = heap_open(relOid, NoLock);
else
rel = heap_open(relOid, AccessExclusiveLock);
/* create_toast_table does all the work */
(void) create_toast_table(rel, InvalidOid, InvalidOid, is_part_child);
heap_close(rel, NoLock);
}
/*
* Create a toast table during bootstrap
*
* Here we need to prespecify the OIDs of the toast table and its index
*/
void
BootstrapToastTable(char *relName, Oid toastOid, Oid toastIndexOid)
{
Relation rel;
rel = heap_openrv(makeRangeVar(NULL, relName, -1), AccessExclusiveLock);
if (rel->rd_rel->relkind != RELKIND_RELATION &&
rel->rd_rel->relkind != RELKIND_MATVIEW)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
errmsg("\"%s\" is not a table or materialized view",
relName)));
/* create_toast_table does all the work */
if (!create_toast_table(rel, toastOid, toastIndexOid, (Datum) 0))
elog(ERROR, "\"%s\" does not require a toast table",
relName);
heap_close(rel, NoLock);
}
/*
* Create a toast table during bootstrap
*
* Here we need to prespecify the OIDs of the toast table and its index
*/
void
BootstrapToastTable(char *relName, Oid toastOid, Oid toastIndexOid)
{
Relation rel;
rel = heap_openrv(makeRangeVar(NULL, relName, -1), AccessExclusiveLock);
/* Note: during bootstrap may see uncataloged relation */
if (rel->rd_rel->relkind != RELKIND_RELATION &&
rel->rd_rel->relkind != RELKIND_UNCATALOGED)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
errmsg("\"%s\" is not a table",
relName)));
/* create_toast_table does all the work */
if (!create_toast_table(rel, toastOid, toastIndexOid, false))
elog(ERROR, "\"%s\" does not require a toast table",
relName);
heap_close(rel, NoLock);
}