elog(ERROR, "index access method handler function %u did not return an IndexAmRoutine struct",
amhandler);
+ /* Assert that all required callbacks are present. */
+ Assert(routine->ambuild != NULL);
+ Assert(routine->ambuildempty != NULL);
+ Assert(routine->aminsert != NULL);
+ Assert(routine->ambulkdelete != NULL);
+ Assert(routine->amvacuumcleanup != NULL);
+ Assert(routine->amcostestimate != NULL);
+ Assert(routine->amoptions != NULL);
+ Assert(routine->amvalidate != NULL);
+ Assert(routine->ambeginscan != NULL);
+ Assert(routine->amrescan != NULL);
+ Assert(routine->amendscan != NULL);
+
return routine;
}