tuple=OpFamilyCacheLookup(amID,stmt->opfamilyname,stmt->missing_ok);

if (!HeapTupleIsValid(tuple))

{

ereport(ERROR,

(errcode(ERRCODE_UNDEFINED_OBJECT),

errmsg("operator family \"%s\" does not exist for access method \"%s\"",

NameListToString(stmt->opfamilyname),stmt->amname)));

ereport(NOTICE,

(errmsg("operator family \"%s\" does not exist for access method \"%s\", skipping",

NameListToString(stmt->opfamilyname),stmt->amname)));

return;

}

DROP OPERATOR FAMILY test_operator_family USING btree;

ERROR: operator family "test_operator_family" does not exist for access method "btree"

DROP OPERATOR FAMILY IF EXISTS test_operator_family USING btree;

ERROR: operator family "test_operator_family" does not exist for access method "btree"

NOTICE: operator family "test_operator_family" does not exist for access method "btree", skipping

DROP OPERATOR FAMILY test_operator_family USING no_such_am;

ERROR: access method "no_such_am" does not exist

DROP OPERATOR FAMILY IF EXISTS test_operator_family USING no_such_am;