Tom Lane 1cd935609f Fix caching of foreign-key-checking queries so that when a replan is needed, ...

we regenerate the SQL query text not merely the plan derived from it.  This
is needed to handle contingencies such as renaming of a table or column
used in an FK.  Pre-8.3, such cases worked despite the lack of replanning
(because the cached plan needn't actually change), so this is a regression.
Per bug #4417 from Benjamin Bihler.

2008-09-15 23:37:40 +00:00

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