common_entry_cmp period_gist_compress period_gist_consistent_internal period_gist_fetch period_gist_penalty period_gist_picksplit period_gist_same period_gist_union period_index_consistent_leaf period_index_recheck periodset_gist_compress timestampset_gist_compress

period_gist_penalty() Datum period_gist_penalty ( PG_FUNCTION_ARGS  ) GiST page split penalty function for periods. The penalty function has the following goals (in order from most to least important): Avoid broadening (as determined by subtype_diff) the original predicate Favor adding periods to narrower original predicates