flink sql multiple statements syntatic validation supports

we konw that blink(blink first commits ) parser and calcite parser all support multiple statements now  and supports multiple statement syntatic validation by calcite, which validates sql statements one by one, and it will not validate the previous tablenames and others. and we only know the sql syntatic error when we submit the flink applications. 

I think it is eagerly need for users. we hope the flink community to support it