CREATE INDEX mcm_test_mcm_idx ON mcm_test(mcm);
CREATE INDEX mcm_test_chipid_idx ON mcm_test(chipid);
CREATE INDEX mcm_test_yymmdd_idx ON mcm_test(yymmdd);
CREATE INDEX wafer_test_wafer_idx ON wafer_test(wafer);
CREATE INDEX wafer_test_readid_idx ON wafer_test(readid);
