OidFunctionCall7 is called from costsize.c, in function void cost_index. From the comments, I understand that there is an indirection mechanism here to allow for different index access methods. Looking at fmgr.h where it is declared is not clear to me where I would ultimately find the code.
Any pointers will be greatly appreciated /* * Call index-access-method-specific code to estimate the processing cost * for scanning the index, as well as the selectivity of the index (ie, * the fraction of main-table tuples we will have to retrieve) and its * correlation to the main-table tuple order. */ OidFunctionCall7(index->amcostestimate, PointerGetDatum(root), PointerGetDatum(path), Float8GetDatum(loop_count), PointerGetDatum(&indexStartupCost), PointerGetDatum(&indexTotalCost), PointerGetDatum(&indexSelectivity), PointerGetDatum(&indexCorrelation)); -- View this message in context: http://postgresql.1045698.n5.nabble.com/Where-can-I-find-the-code-for-extern-OidFunctionCall7-tp5769737.html Sent from the PostgreSQL - hackers mailing list archive at Nabble.com. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers