Hi dear people, I'm not sure if this is for general or for hackers, but let's start here ;-) We are building a RAD tool (GeneXus) support, for PostgreSQL. A problem which arose, is that within a transaction, if one inserts on a table and the PK restriction is violated, the transaction aborts and leaves itself in abort state. One has to END the transaction and start a new one. This is a problem, in large transactions, where lots of things have been done to the database, and an insertion is to be done, which may yield an error just because the PK already existed. The whole transaction should have to be redone if the insertion failed. A solution, could be to query for the existance of the PK, just before the insertion. But there is a little span between the test and the insertion, where another insertion from another transaction could void the existance test. Any clever ideas on how to solve this? Using triggers maybe? Other solutions? I'm aware that savepoints and nested transactions will be implemented in future versions, but how to solve the problem before that starts working? Thanks Regards, Haroldo. ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
