Tom Lane e6381966c1 Major planner/optimizer revision: get rid of PathOrder node type, ...

store all ordering information in pathkeys lists (which are now lists of
lists of PathKeyItem nodes, not just lists of lists of vars).  This was
a big win --- the code is smaller and IMHO more understandable than it
was, even though it handles more cases.  I believe the node changes will
not force an initdb for anyone; planner nodes don't show up in stored
rules.

1999-08-16 02:17:58 +00:00

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