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- Drop foreign keys generally in POSTGRES - Stack Overflow
Please aware you are not dropping only foreign keys This code will drop all primary key constraints, unique key constraint If you want to filter foreign keys you can add constraint_type ='FOREIGN KEY' to your query
- postgresql - How to quickly remove a FK constraint . . .
Dropping a foreign key constraint is nearly instantaneous, once it obtains the necessary locks on both tables It is probably blocked waiting on those locks I let it run for an hour and it didn't complete, so I killed my psql terminal How did you do that? A simple ctrl-C should interrupt the query without needing to kill the entire terminal
- How to drop constraint by name in PostgreSQL? - Stack Overflow
Drop the right foreign key constraint DROP CONSTRAINT affiliations_organization_id_fkey; NOTE: If your on 9 x of PG you could make use of the DO statement to run this Just do what a_horse_with_no_name did, but apply it to a DO statement BEGIN FOR r IN SELECT table_name,constraint_name FROM information_schema constraint_table_usage
- How to disable foreign key constraints in postgresql
To turn constraints temporarily off, you can defer the constraint check to the end of transactions: With that modification the constraint is evaluated after a modification at the end of the current transaction This will allow you to break the constraint inside of a transaction You may DROP CONSTRAINT s which will delete it permanently
- postgresql - Drop foreign key locks referenced table . . .
When executing ALTER TABLE x drop constraint fk12345; though, the query took very long, the database load increased significantly and the query had to be aborted So my question is: Does removing a FK lock the referenced table? If not, what else might be the explanation for the long duration?
- sql - How to drop constraints in postgres? - Stack Overflow
I have this query in SQL: IF EXISTS (SELECT * FROM dbo sysobjects WHERE id = object_id (' [FK_states_list]') AND OBJECTPROPERTY (id, 'IsForeignKey') = 1) ALTER TABLE [custom_table] DROP CONSTRAINT [
- postgresql - Why would ALTER TABLE DROP CONSTRAINT . . .
However, the ALTER TABLE DROP CONSTRAINT command to drop the first foreign key constraint on the table is taking a very long time (tens of minutes), despite the table being completely empty
- Slow deletes in Postgresql with foreign key constraints
delete from table3 where entity_id = 1; COMMIT; I defer constraints because of a variety of foreign key relationships, including in one table a circular relationship (a self-referential foreign key) The COMMIT runs extremely slowly, I assume because of checking the deferred constraints Is there a way to figure out what is going on
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