Rewrite support

Author: levkk

Chart.yaml

@@ -1,4 +1,4 @@
 apiVersion: v1
 name: pgdog
-version: v0.37
+version: v0.38
 appVersion: "0.1.25"

templates/config.yaml

@@ -262,3 +262,10 @@ data:
         query_timings_chunk_size = {{ .Values.control.queryTimingsChunkSize | default "25" }}
         query_timings_new_query_queue_size = {{ .Values.control.queryTimingsNewQueryQueueSize | default "1_000" }}
         {{- end }}
+
+        {{- if .Values.rewrite }}
+        [rewrite]
+        enabled = {{ .Values.rewrite.enabled | default "false" }}
+        shard_key = {{ .Values.rewrite.shardKey | default "error" | quote }}
+        split_inserts = {{ .Values.rewrite.splitInserts | default "error" | quote }}
+        {{- end }}

test/values-rewrite.yaml

@@ -0,0 +1,15 @@
+# Test rewrite configuration
+rewrite:
+  enabled: true
+  shardKey: "rewrite"
+  splitInserts: "ignore"
+
+# Basic database config for testing rewrite
+databases:
+  - name: primary
+    host: postgres.example.com
+    port: 5432
+
+users:
+  - username: app_user
+    password: secret123