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grab exclusive lock before dropping table

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This commit is contained in:
Edwina Lu 2016-04-15 14:34:41 -07:00
parent 0d84624b92
commit dcce8e43e9
1 changed files with 8 additions and 0 deletions
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8
bin/pg_repack.c
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@ -1392,6 +1392,14 @@ repack_one_table(repack_table *table, const char *orderby)
elog(DEBUG2, "---- drop ----");
command("BEGIN ISOLATION LEVEL READ COMMITTED", 0, NULL);
if (!(lock_exclusive(connection, utoa(table->target_oid, buffer),
table->lock_table, FALSE)))
{
elog(WARNING, "lock_exclusive() failed in connection for %s",
table->target_name);
goto cleanup;
}
params[1] = utoa(temp_obj_num, indexbuffer);
command("SELECT repack.repack_drop($1, $2)", 2, params);
command("COMMIT", 0, NULL);