Fix gocyclo createByType (#1315)
Fix gocyclo createByType (#1315)

* Fix gocyclo createByType

* Update column_type.go

* gofmt

sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow,sql-machine-learning/sqlflow