Skipped multirange tests for postgres less than 14 version

pgxtest/pgxtest.go

@@ -5,6 +5,8 @@ import (
 	"context"
 	"fmt"
 	"reflect"
+	"regexp"
+	"strconv"
 	"testing"
 
 	"github.com/jackc/pgx/v5"
@@ -151,3 +153,21 @@ func SkipCockroachDB(t testing.TB, conn *pgx.Conn, msg string) {
 		t.Skip(msg)
 	}
 }
+
+func SkipPostgreSQLVersionLessThan(t testing.TB, conn *pgx.Conn, minVersion int64) {
+	serverVersionStr := conn.PgConn().ParameterStatus("server_version")
+	serverVersionStr = regexp.MustCompile(`^[0-9]+`).FindString(serverVersionStr)
+	// if not PostgreSQL do nothing
+	if serverVersionStr == "" {
+		return
+	}
+
+	serverVersion, err := strconv.ParseInt(serverVersionStr, 10, 64)
+	if err != nil {
+		t.Fatalf("postgres version parsed failed: %s", err)
+	}
+
+	if serverVersion < minVersion {
+		t.Skipf("Test requires PostgreSQL v%d+", minVersion)
+	}
+}