-- 业务块4增量迁移：既有二期库补齐异常放行关口查询索引。
-- 可重复执行；新库仍先执行 phase2-inbound-schema.sql。
USE baiyue_firstleg;
SET NAMES utf8mb4;

SET @ddl = IF(
  EXISTS(SELECT 1 FROM information_schema.statistics
          WHERE table_schema = DATABASE() AND table_name = 'fl_measure_review_record'
            AND index_name = 'idx_review_exception_release'),
  'SELECT 1',
  'ALTER TABLE fl_measure_review_record ADD INDEX idx_review_exception_release (tenant_id, inbound_id, exception_release, reviewed_at)'
);
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;