selvaganesang opened a new pull request #1843: [TRAFODION-3311] Trafodion to start transactions for select statements with FOR UPDATE URL: https://github.com/apache/trafodion/pull/1843 A CQD BEGIN_TRANSACTION_FOR_SELECT is introduced. This CQD can take a value 1,2 or any numeric value. Default is 1. 1 - means mark the statement as transaction required if it is SELECT ... FOR UPDATE 2 - means mark the statement as transaction required if it is SELECT statement with isolation other than SKIP CONFLICT ACCESS or READ UNCOMMITTED ACCESS. Any other value - SELECT statement is not marked to begin transaction. Trafodion always change the isolation level to READ COMMITTED ACCESS when it is READ UNCOMMITTED ACCESS.
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