Jaime Casanova wrote:

Funny, we were just discussing this at OpenDBCon.   Seems that you can't do a
full implementation of MERGE without Predicate Locking (the ability to say
"lock this table against inserts or updates of any row with key=5").

it isn't what select for update does?


It won't prevent the insertion of a row with the given predicate.

cheers

andrew

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