"Pavan Deolasee" <[EMAIL PROTECTED]> writes:
> I don't have much insight into the operator classes and operator families
> and how they work. Where should I look for the related code ?

Primary opclass members are stored right in the Relation data struct for
you.  Since (I trust) you're only supporting this for btree, you could
just use rd_supportinfo[0] which will not even cost an fmgr lookup.
See index_getprocinfo() and callers.

                        regards, tom lane

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