ALTER TABLE CUSTOMER ADD INDEX ZIPorPostalCodeIndex USING BTREE(ZIPorPostalCode);ALTER TABLE CUSTOMER ADD INDEX ZIPorPostalCodeIndex USING BTREE(ZIPorPostalCode);ALTER TABLE CUSTOMER ADD INDEX ZIPorPostalCodeIndex USING BTREE(ZIPorPostalCode);ALTER TABLE CUSTOMER ADD INDEX ZIPorPostalCodeIndex USING BTREE(ZIPorPostalCode);