Tom Lane <[email protected]> wrote: > "Kevin Grittner" <[email protected]> writes: >> treat parentheses around JOIN operations as optimizer hints. > > That's a *truly* horrid idea, as sometimes you need them simply to > get the precedence correct. You do, but it's been pretty rare in my experience, and we're considering alternatives which give a lot less flexibility that this. The *truly* awful thing about the SAP-DB implementation is that it wasn't optional -- parentheses in this part of a query always limited optimizer options; I sure wouldn't want to go there again. I thought we were talking about options for what to do when an enable_* setting was off for diagnostic purposes.... -Kevin
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