在PolarDB中，不用left join也还是先全表scan再join，这种的应该咋改写？

sql可以把or拆成两个union。SELECT
FROM user_label_kudu ucl
LEFT JOIN user_business_label ubl ON ubl.uid = ucl.uid
WHERE ubl.current_first_active_time >= 1723422382
OR ubl.last_bank_card_failed_time
UNION ALL
SELECT
FROM user_label_kudu ucl
LEFT JOIN user_business_label ubl ON ubl.uid = ucl.uid
WHERE ucl.first_ocr_time >= 1723422382
OR ucl.first_band_card_time >= 1723422382
OR ucl.last_audit_create_time >= 1723422382
OR ucl.last_audit_failed_time >= 1723422382
OR ucl.last_audit_result_time >= 1723422382
OR ucl.last_enter_withdraw >= 1723422382
OR ucl.last_loan_submit_time >= 1723422382
OR ucl.last_loan_failed_time >= 1723422382
OR ucl.last_loan_success_time >= 1723422382 LIMIT 5此回答整理自钉群"PolarDB专家面对面 - HTAP（列存索引）"