Test if the line in contrib/postgres/test.sql is the culprit

contrib/postgres/test.sql

@@ -66,8 +66,6 @@ insert into authors (name) values
 
 \echo `echo hello`
 
-select :"COLNAME" from authors where :COLNAME like '%' || :'NAME' || '%'
-
 \print \raw
 
 \g

testcli.go

@@ -119,6 +119,7 @@ func (test Test) do(ctx context.Context, binpath string, timeout time.Duration)
 		gexpect.SetEnv(test.env),
 		gexpect.Tee(&noopWriteCloser{os.Stdout}),
 	)
+	exp.Options(gexpect.Verbose(true))
 	if err != nil {
 		return err
 	}
@@ -127,6 +128,7 @@ func (test Test) do(ctx context.Context, binpath string, timeout time.Duration)
 		return err
 	}
 	for _, line := range bytes.Split(buf, []byte{'\n'}) {
+		time.Sleep(100 * time.Millisecond)
 		if err := exp.Send(string(line) + "\n"); err != nil {
 			return err
 		}