-- prc_order.bl_pickup from TAB_ORDER.BL_PICKUP (0/1)
SET NAMES utf8mb4;

SET @col := (
  SELECT COLUMN_NAME FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = DATABASE()
    AND TABLE_NAME = 'prc_order'
    AND COLUMN_NAME = 'bl_pickup'
  LIMIT 1
);
SET @sql := IF(
  @col IS NULL,
  'ALTER TABLE prc_order ADD COLUMN bl_pickup tinyint(4) DEFAULT NULL COMMENT \'是否收货（0未收货 1已收货，TAB_ORDER.BL_PICKUP）\' AFTER order_status, ADD KEY idx_prc_order_bl_pickup (bl_pickup)',
  'SELECT 1'
);
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

-- drop from ext if still present (moved to prc_order)
SET @col := (
  SELECT COLUMN_NAME FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = DATABASE()
    AND TABLE_NAME = 'prc_order_ext'
    AND COLUMN_NAME = 'bl_pickup'
  LIMIT 1
);
SET @sql := IF(
  @col IS NOT NULL,
  'ALTER TABLE prc_order_ext DROP COLUMN bl_pickup',
  'SELECT 1'
);
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;