mpp: throw an err when mpp generate empty table scan task list (#33084)
mpp: throw an err when mpp generate empty table scan task list (#33084)

close pingcap/tidb#33083
c4pt0r/tidb,pingcap/tidb,kyle-wang/tidb,ngaut/tidb,ngaut/tidb,kyle-wang/tidb,ngaut/tidb,kyle-wang/tidb,pingcap/tidb,pingcap/tidb,kyle-wang/tidb,c4pt0r/tidb,c4pt0r/tidb,c4pt0r/tidb,ngaut/tidb,ngaut/tidb,kyle-wang/tidb,pingcap/tidb,ngaut/tidb,c4pt0r/tidb,kyle-wang/tidb,pingcap/tidb,pingcap/tidb,c4pt0r/tidb