Tom Lane c6e81aeef3 Fix EXPLAIN so that it can drill down through multiple levels of subplan ...

when trying to locate the referent of a RECORD variable.  This fixes the
'record type has not been registered' failure reported by Stefan
Kaltenbrunner about a month ago.  A side effect of the way I chose to
fix it is that most variable references in join conditions will now be
properly labeled with the variable's source table name, instead of the
not-too-helpful 'outer' or 'inner' we used to use.

2006-04-08 18:49:52 +00:00

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