Merge branch 'main' into main

Author: kavirajk

CHANGELOG.md

@@ -1,3 +1,19 @@
+# v2.45.0, 2026-04-13 <!-- Release notes generated using configuration in .github/release.yml at main -->
+
+## What's Changed
+
+### Bug Fixes :bug: 
+* fix: set req.Host for Host header in HTTP transport by @binger-li-dd in https://github.com/ClickHouse/clickhouse-go/pull/1826
+
+### Other Changes 🛠
+* chore: pass explicity github token for claude review by @kavirajk in https://github.com/ClickHouse/clickhouse-go/pull/1818
+
+
+## New Contributors
+* @binger-li-dd made their first contribution in https://github.com/ClickHouse/clickhouse-go/pull/1826
+
+**Full Changelog**: https://github.com/ClickHouse/clickhouse-go/compare/v2.44.0...v2.45.0
+
 # v2.44.0, 2026-03-31 <!-- Release notes generated using configuration in .github/release.yml at main -->
 
 ## What's Changed

client_info.go

@@ -13,7 +13,7 @@ const ClientName = "clickhouse-go"
 
 const (
 	ClientVersionMajor       = 2
-	ClientVersionMinor       = 44
+	ClientVersionMinor       = 45
 	ClientVersionPatch       = 0
 	ClientTCPProtocolVersion = proto.DBMS_TCP_PROTOCOL_VERSION
 )

conn_http.go

@@ -137,7 +137,11 @@ func applyOptionsToRequest(ctx context.Context, req *http.Request, opt *Options)
 	req.Header.Set("User-Agent", opt.ClientInfo.Append(queryOpt.clientInfo).String())
 
 	for k, v := range opt.HttpHeaders {
-		req.Header.Set(k, v)
+		if strings.EqualFold(k, "Host") {
+			req.Host = v
+		} else {
+			req.Header.Set(k, v)
+		}
 	}
 
 	return nil

conn_http_test.go

@@ -1,6 +1,7 @@
 package clickhouse
 
 import (
+	"context"
 	"net/http"
 	"testing"
 )
@@ -20,3 +21,81 @@ func TestCreateHTTPRoundTripper(t *testing.T) {
 		t.Fatal("TransportFn not called")
 	}
 }
+
+func TestApplyOptionsToRequest_HostHeader(t *testing.T) {
+	tests := []struct {
+		name            string
+		headers         map[string]string
+		expectedHost    string
+		expectedInMap   map[string]string
+		unexpectedInMap []string
+	}{
+		{
+			name:            "Host header sets req.Host",
+			headers:         map[string]string{"Host": "my-service.example.com"},
+			expectedHost:    "my-service.example.com",
+			unexpectedInMap: []string{"Host"},
+		},
+		{
+			name:            "lowercase host header sets req.Host",
+			headers:         map[string]string{"host": "my-service.example.com"},
+			expectedHost:    "my-service.example.com",
+			unexpectedInMap: []string{"Host"},
+		},
+		{
+			name:            "uppercase HOST header sets req.Host",
+			headers:         map[string]string{"HOST": "my-service.example.com"},
+			expectedHost:    "my-service.example.com",
+			unexpectedInMap: []string{"Host"},
+		},
+		{
+			name: "Host header with other headers",
+			headers: map[string]string{
+				"Host":           "my-service.example.com",
+				"X-Custom-Token": "abc123",
+			},
+			expectedHost:    "my-service.example.com",
+			expectedInMap:   map[string]string{"X-Custom-Token": "abc123"},
+			unexpectedInMap: []string{"Host"},
+		},
+		{
+			name:          "no Host header leaves req.Host unchanged",
+			headers:       map[string]string{"X-Custom": "value"},
+			expectedHost:  "localhost:8123",
+			expectedInMap: map[string]string{"X-Custom": "value"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			req, err := http.NewRequest(http.MethodPost, "http://localhost:8123/", nil)
+			if err != nil {
+				t.Fatalf("failed to create request: %s", err)
+			}
+
+			opts := &Options{
+				HttpHeaders: tt.headers,
+			}
+
+			if err := applyOptionsToRequest(context.Background(), req, opts); err != nil {
+				t.Fatalf("applyOptionsToRequest failed: %s", err)
+			}
+
+			if req.Host != tt.expectedHost {
+				t.Errorf("req.Host = %q, want %q", req.Host, tt.expectedHost)
+			}
+
+			for k, v := range tt.expectedInMap {
+				if got := req.Header.Get(k); got != v {
+					t.Errorf("req.Header[%q] = %q, want %q", k, got, v)
+				}
+			}
+
+			for _, k := range tt.unexpectedInMap {
+				if got := req.Header.Get(k); got != "" {
+					t.Errorf("req.Header[%q] = %q, want it absent", k, got)
+				}
+			}
+		})
+	}
+}

contributors/list

@@ -199,6 +199,7 @@ alex <alex@localhost.localdomain>
 anton troyanov <anton@troyanov.net>
 astduman <41344369+Astemirdum@users.noreply.github.com>
 barkhayot <barkhayotoff@gmail.com>
+binger-li-dd <binger.li@doordash.com>
 caleb.xiang <90543061+cxiang03@users.noreply.github.com>
 candiduslynx <candiduslynx@users.noreply.github.com>
 chengzhi <chengzhi@shinnytech.com>