Questions tagged [mvcc]

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Does H2 Database support pessimistic locking?

Does the H2 Database support pessimistic locking? If so, how does its use interact with H2’s MVCC implementation? I'm not looking for advice on whether or not to use pessimistic locking. I have a ...
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Postgres 40001 Exception Conditional Insert

I have 3 tables, A,B and C. A function actOnABC(i) which is a read only operation on the tables: IF actOnABC(i) = 0 THEN RAISE EXCEPTION 'Message'; ELSE INSERT INTO TABLE B VALUES(...); END ...
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What is the impact of DROP SCHEMA on concurrent read only workloads in PostgreSQL?

I have an ELT process that deals with a pretty small amount of data. I would like to have 1 schema called prod with the results of the previous ELT run and 1 schema called dev where I will perform the ...