Tagged Questions
3
votes
2answers
126 views
pessimistic locking and client death
We are considering pessimistic locking for our project (SELECT ... FOR UPDATE); as we are used to optimistic locking, we are afraid about the operation of the server being blocked on such a lock (lock ...
4
votes
1answer
121 views
Do isolation levels only apply to SELECTS and not UPDATES? [closed]
Scenario that might demonstrate different behavior for SELECTS depending on the isolation level:
1) 0:00 Thread A runs a query that returns 1000 rows that takes 5 minutes to complete
2) 0:02 Thread B ...
1
vote
1answer
203 views
drop postgres table with minimal locking
I'm trying to run the following Postgres migration script
DROP TABLE some_table;
DROP TABLE another_table;
The problem is that this script causes excessive locking when run on the production ...
7
votes
4answers
732 views
Locking issue with concurrent DELETE / INSERT in PostgreSQL
This is pretty simple, but I'm baffled by what PG does (v9.0).
We start with a simple table:
CREATE TABLE test (id INT PRIMARY KEY);
and a few rows:
INSERT INTO TEST VALUES (1);
INSERT INTO TEST ...
