Hello Experts,
I am running a query on a table - ALTER TABLE mytable ADD COLUMN deposited DOUBLE PRECISION DEFAULT 0.0;
this query just runs forever. Few more details about this table -
Total row count - 300000 (a small table of 200MB)
Columns - 42
Indexes - 15
Foreign key constraint - 14
Table reference - 11
When i check for the query in pg_stat_activity the wait even is LOCK and wait_event_type is RELATION.
Also when i check in pg_locks the granted status is 'f'. However there are no pid's blocking this transaction.
This has just 500 dead tuples, so no problems there as well
I am a DBA and not good at development.
Unable to understand what would be causing this? Could you guys help me what should be my next approach or solutions on this .
Regards,
Devendra Yadav
