Hi Alvaro, > >> But then there's the matter of how to represent it from the grammar >> inwards. At first I thought of creating a new parse node type, say >> MultiResTarget that would replace ResTarget in UpdateStmt, and get it >> from there into the optimizer and executor. > > Hmm, I should be passing it as a Query node, right? > I had (rather unsuccessfully) tried my hands on this same TODO a while back. Here is what Tom had to say about my approach: http://www.nabble.com/UPDATE-using-sub-selects-td9935249.html#a16108043 Also attached is the discussion on hackers to provide some more context: http://www.nabble.com/UPDATE-using-sub-selects-td9489091.html Might not be a big help, but just wanted to mention it here.. Regards, Nikhils -- http://www.enterprisedb.com
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