feat: add helper for query params

client_test.go

@@ -46,6 +46,12 @@ func Conn(t testing.TB) *Client {
 	return ConnOpt(t, Options{})
 }
 
+func SkipNoFeature(t *testing.T, client *Client, feature proto.Feature) {
+	if !client.ServerInfo().Has(feature) {
+		t.Skipf("Skipping (feature %q not supported)", feature)
+	}
+}
+
 func TestDial(t *testing.T) {
 	t.Run("Ok", func(t *testing.T) {
 		conn := Conn(t)

query_params.go

@@ -0,0 +1,27 @@
+package ch
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/ClickHouse/ch-go/proto"
+)
+
+// Parameters is helper for building Query.Parameters.
+//
+// EXPERIMENTAL.
+func Parameters(m map[string]any) []proto.Parameter {
+	var out []proto.Parameter
+	for k, v := range m {
+		out = append(out, proto.Parameter{
+			Key:   k,
+			Value: fmt.Sprintf("'%v'", v),
+		})
+	}
+	// Sorting to make output deterministic.
+	sort.Slice(out, func(i, j int) bool {
+		return out[i].Key < out[j].Key
+	})
+
+	return out
+}

query_params_test.go

@@ -10,19 +10,15 @@ import (
 )
 
 func TestQueryParameters(t *testing.T) {
-	conn := ConnOpt(t, Options{QuotaKey: ""})
-	if !conn.ServerInfo().Has(proto.FeatureParameters) {
-		t.Skip("Skipping (not supported)")
-	}
+	conn := Conn(t)
+	SkipNoFeature(t, conn, proto.FeatureParameters)
 	ctx := context.Background()
-	data := new(proto.ColUInt8)
 	require.NoError(t, conn.Do(ctx, Query{
-		Body: "select {num:UInt8} v",
-		Parameters: []proto.Parameter{
-			{Key: "num", Value: `'1'`},
-		},
-		Result: proto.Results{
-			{Name: "v", Data: data},
-		},
+		Body: "select {num:UInt8} v, {str:String} s",
+		Parameters: Parameters(map[string]any{
+			"num": 100,
+			"str": "foo",
+		}),
+		Result: discardResult(),
 	}))
 }