erobles <erob...@sensacd.com.mx> writes:
> how can i get the same info from postgres 7.2 , and be able to get
> the differences between 8.3 and 7.2
Before the pg_cast catalog there simply wasn't any explicit
representation of available casts. I think what you need to look for is
single-argument functions that have the same name as their result type,
but it was a long time ago.
regards, tom lane
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