In section "13.2.1. Read Committed Isolation Level" the document states that "it never sees either uncommitted data or changes committed during query execution by concurrent transactions" but this is exactly the same as "Repeatable Read Isolation Level".
They are not the same. Read Committed has:
> ... sees data committed before the query began; ...... changes committed during query execution ...
but Repeatable Read has:
> ... sees data committed before the transaction began; ...... changes committed during transaction execution ...
Also in the last sentence of the paragraph it says "if other transactions commit changes after the first SELECT starts and before the second SELECT starts" meaning that it could see the commited data from other concurrent transaction which is completely contradict with the previous statement. -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs
