only request raw packets for Execute API

Signed-off-by: Harshit Gangal <harshit@planetscale.com>

go/test/endtoend/vtgate/misc_test.go

@@ -854,15 +854,19 @@ func getVar(t *testing.T, key string) interface{} {
 	return val
 }
 
+// TestShow is simple test to check if show tables works.
 func TestShow(t *testing.T) {
 	ctx := context.Background()
 	conn, err := mysql.Connect(ctx, &vtParams)
 	require.NoError(t, err)
 	defer conn.Close()
 
 	qr := utils.Exec(t, conn, "show tables")
-	fmt.Printf("output1: %v\n", qr.Rows)
+	assert.Equal(t, 1, len(qr.Fields))
+	assert.Equal(t, 21, len(qr.Rows))
+
 	utils.Exec(t, conn, "begin")
 	qr = utils.Exec(t, conn, "show tables")
-	fmt.Printf("output2: %v\n", qr.Rows)
+	assert.Equal(t, 1, len(qr.Fields))
+	assert.Equal(t, 21, len(qr.Rows))
 }

go/vt/vttablet/grpctabletconn/conn.go

@@ -477,6 +477,10 @@ func (conn *gRPCQueryClient) BeginExecute(ctx context.Context, target *querypb.T
 		return state, nil, tabletconn.ConnClosed
 	}
 
+	if options != nil {
+		options.RawMysqlPackets = false
+	}
+
 	req := &querypb.BeginExecuteRequest{
 		Target:            target,
 		EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
@@ -875,6 +879,10 @@ func (conn *gRPCQueryClient) ReserveBeginExecute(ctx context.Context, target *qu
 		return state, nil, tabletconn.ConnClosed
 	}
 
+	if options != nil {
+		options.RawMysqlPackets = false
+	}
+
 	req := &querypb.ReserveBeginExecuteRequest{
 		Target:            target,
 		EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
@@ -991,6 +999,10 @@ func (conn *gRPCQueryClient) ReserveExecute(ctx context.Context, target *querypb
 		return state, nil, tabletconn.ConnClosed
 	}
 
+	if options != nil {
+		options.RawMysqlPackets = false
+	}
+
 	req := &querypb.ReserveExecuteRequest{
 		EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
 		ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),