-- 首页统计查询索引（可重复执行）

SET @dashboard_index_sql = (
    SELECT IF(
        COUNT(1) = 0,
        'ALTER TABLE app_virtual_order ADD INDEX idx_virtual_order_create_time (create_time)',
        'SELECT 1'
    )
    FROM information_schema.statistics
    WHERE table_schema = DATABASE()
      AND table_name = 'app_virtual_order'
      AND index_name = 'idx_virtual_order_create_time'
);
PREPARE dashboard_index_stmt FROM @dashboard_index_sql;
EXECUTE dashboard_index_stmt;
DEALLOCATE PREPARE dashboard_index_stmt;

SET @dashboard_index_sql = (
    SELECT IF(
        COUNT(1) = 0,
        'ALTER TABLE app_pay_order ADD INDEX idx_pay_order_status_pay_time (status, pay_time)',
        'SELECT 1'
    )
    FROM information_schema.statistics
    WHERE table_schema = DATABASE()
      AND table_name = 'app_pay_order'
      AND index_name = 'idx_pay_order_status_pay_time'
);
PREPARE dashboard_index_stmt FROM @dashboard_index_sql;
EXECUTE dashboard_index_stmt;
DEALLOCATE PREPARE dashboard_index_stmt;

SET @dashboard_index_sql = (
    SELECT IF(
        COUNT(1) = 0,
        'ALTER TABLE app_virtual_order ADD INDEX idx_virtual_order_status_pay_time (status, pay_time)',
        'SELECT 1'
    )
    FROM information_schema.statistics
    WHERE table_schema = DATABASE()
      AND table_name = 'app_virtual_order'
      AND index_name = 'idx_virtual_order_status_pay_time'
);
PREPARE dashboard_index_stmt FROM @dashboard_index_sql;
EXECUTE dashboard_index_stmt;
DEALLOCATE PREPARE dashboard_index_stmt;