在navicat上sql正常运行，在设计器里的查看执行sql在navicat上也是正常运行，但是在设计器预览数据就报错了，这是为什么呢？

SET @sql = NULL;

SELECT

  GROUP_CONCAT(DISTINCT

    CONCAT(

      'SUM(CASE WHEN PK_ACCM = ''',

      PK_ACCM,

      ''' THEN TB_MEATYPE_0000000FS/10000 END) AS `',

      PK_ACCM, '`'

    )

  ) INTO @sql

FROM fi_erp_dw_cwlrb

WHERE PK_MEASURE IN ('0001A11000000000243B','0001A11000000000243C','0001A11000000000243E','0001A11000000000243D')

AND PK_YM <= '2023-06' AND PK_ACCP = LEFT('2023-06',4);

SET @sql = CONCAT('SELECT PK_PROJECT,PK_MEASURE, PK_ACCP, ', @sql, ' FROM fi_erp_dw_cwlrb WHERE PK_MEASURE IN (''0001A11000000000243B'',''0001A11000000000243C'',''0001A11000000000243E'',''0001A11000000000243D'') AND PK_YM <= ''${pym}'' AND PK_ACCP = LEFT(''${pym}'',4) GROUP BY PK_PROJECT,PK_MEASURE, PK_ACCP');

PREPARE stmt FROM @sql;

EXECUTE stmt;

DEALLOCATE PREPARE stmt;