connCheck undefined on v1.5.0

[pineda89]

I receive this error when compile with v1.5.0

clickhouse.go:133:20: ch.conn.connCheck undefined (type *connect has no field or method connCheck)

[kshvakov]

@saydamir

[darthShadow]

This probably needs to be changed (assuming it's being built on one of the unsupported OS):

clickhouse-go/connect_check_dummy.go

Line 7 in 2987a5c

func connCheck(conn net.Conn) error {

to

func (conn *connect) connCheck() error { 

[saydamir]

I agree with the reason for the problem that @darthShadow pointed out.
Unfortunately, I have not tested the build on unsupported platforms in #421 .

Fix in #423 .