Igor Babaev da9aabbbb6 Fixed LP bug #954900. ...

If the first component of a ref key happened to be a constant appeared
after constant row substitution then no store_key element should be
created for such a component. Yet create_ref_for_key() erroneously could
create such an element that caused construction of invalid ref keys and
wrong results for some joins.

2012-03-22 19:56:17 -07:00

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