expression: fix type infer of unaryMinus which should return ETDecimal if ETInt overflow int (#11989)#11990

Merged

sre-bot merged 2 commits intopingcap:release-2.1from sre-bot:release-2.1-67d4f913dd3f

Sep 2, 2019

+9-4

Commits on Sep 2, 2019

expression: fix type infer of unaryMinus which should return ETDecimal if overflow int

lonng
authored and
root
committed
add integration tests

lonng
authored and
root
committed