Server-side sorting for execution search results

Sorting now applies to the entire result set via ClickHouse ORDER BY
instead of only sorting the current page client-side. Default sort
order is timestamp descending. Supported sort columns: startTime,
status, agentId, routeId, correlationId, durationMs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/SearchController.java

@@ -47,7 +47,9 @@ public class SearchController {
             @RequestParam(required = false) String agentId,
             @RequestParam(required = false) String processorType,
             @RequestParam(defaultValue = "0") int offset,
-            @RequestParam(defaultValue = "50") int limit) {
+            @RequestParam(defaultValue = "50") int limit,
+            @RequestParam(required = false) String sortField,
+            @RequestParam(required = false) String sortDir) {
 
         SearchRequest request = new SearchRequest(
                 status, timeFrom, timeTo,
@@ -55,7 +57,8 @@ public class SearchController {
                 correlationId,
                 text, null, null, null,
                 routeId, agentId, processorType,
-                offset, limit
+                offset, limit,
+                sortField, sortDir
         );
 
         return ResponseEntity.ok(searchService.search(request));

cameleer3-server-app/src/main/java/com/cameleer3/server/app/search/ClickHouseSearchEngine.java

@@ -51,10 +51,11 @@ public class ClickHouseSearchEngine implements SearchEngine {
         // Data query
         params.add(request.limit());
         params.add(request.offset());
+        String orderDir = "asc".equalsIgnoreCase(request.sortDir()) ? "ASC" : "DESC";
         String dataSql = "SELECT execution_id, route_id, agent_id, status, start_time, end_time, " +
                 "duration_ms, correlation_id, error_message, diagram_content_hash " +
                 "FROM route_executions" + where +
-                " ORDER BY start_time DESC LIMIT ? OFFSET ?";
+                " ORDER BY " + request.sortColumn() + " " + orderDir + " LIMIT ? OFFSET ?";
 
         List<ExecutionSummary> data = jdbcTemplate.query(dataSql, (rs, rowNum) -> {
             Timestamp endTs = rs.getTimestamp("end_time");

cameleer3-server-core/src/main/java/com/cameleer3/server/core/search/SearchRequest.java

@@ -23,6 +23,8 @@ import java.time.Instant;
  * @param processorType matches processor_types array via has()
  * @param offset        pagination offset (0-based)
  * @param limit         page size (default 50, max 500)
+ * @param sortField     column to sort by (default: startTime)
+ * @param sortDir       sort direction: asc or desc (default: desc)
  */
 public record SearchRequest(
         String status,
@@ -39,15 +41,37 @@ public record SearchRequest(
         String agentId,
         String processorType,
         int offset,
-        int limit
+        int limit,
+        String sortField,
+        String sortDir
 ) {
 
     private static final int DEFAULT_LIMIT = 50;
     private static final int MAX_LIMIT = 500;
 
+    private static final java.util.Set<String> ALLOWED_SORT_FIELDS = java.util.Set.of(
+            "startTime", "status", "agentId", "routeId", "correlationId", "durationMs"
+    );
+
+    private static final java.util.Map<String, String> SORT_FIELD_TO_COLUMN = java.util.Map.of(
+            "startTime", "start_time",
+            "status", "status",
+            "agentId", "agent_id",
+            "routeId", "route_id",
+            "correlationId", "correlation_id",
+            "durationMs", "duration_ms"
+    );
+
     public SearchRequest {
         if (limit <= 0) limit = DEFAULT_LIMIT;
         if (limit > MAX_LIMIT) limit = MAX_LIMIT;
         if (offset < 0) offset = 0;
+        if (sortField == null || !ALLOWED_SORT_FIELDS.contains(sortField)) sortField = "startTime";
+        if (!"asc".equalsIgnoreCase(sortDir)) sortDir = "desc";
+    }
+
+    /** Returns the validated ClickHouse column name for ORDER BY. */
+    public String sortColumn() {
+        return SORT_FIELD_TO_COLUMN.getOrDefault(sortField, "start_time");
     }
 }

ui/src/api/openapi.json

@@ -255,6 +255,22 @@
               "format": "int32",
               "default": 50
             }
+          },
+          {
+            "name": "sortField",
+            "in": "query",
+            "required": false,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "sortDir",
+            "in": "query",
+            "required": false,
+            "schema": {
+              "type": "string"
+            }
           }
         ],
         "responses": {
@@ -1500,6 +1516,12 @@
           "limit": {
             "type": "integer",
             "format": "int32"
+          },
+          "sortField": {
+            "type": "string"
+          },
+          "sortDir": {
+            "type": "string"
           }
         }
       },

ui/src/api/schema.d.ts

@@ -562,6 +562,8 @@ export interface components {
             offset?: number;
             /** Format: int32 */
             limit?: number;
+            sortField?: string;
+            sortDir?: string;
         };
         ExecutionSummary: {
             executionId: string;
@@ -915,6 +917,8 @@ export interface operations {
                 processorType?: string;
                 offset?: number;
                 limit?: number;
+                sortField?: string;
+                sortDir?: string;
             };
             header?: never;
             path?: never;

ui/src/pages/executions/ResultsTable.tsx

@@ -1,10 +1,11 @@
-import { useState, useMemo } from 'react';
+import { useState } from 'react';
 import type { ExecutionSummary } from '../../api/types';
 import { StatusPill } from '../../components/shared/StatusPill';
 import { DurationBar } from '../../components/shared/DurationBar';
 import { AppBadge } from '../../components/shared/AppBadge';
 import { ProcessorTree } from './ProcessorTree';
 import { ExchangeDetail } from './ExchangeDetail';
+import { useExecutionSearch } from './use-execution-search';
 import styles from './ResultsTable.module.css';
 
 interface ResultsTableProps {
@@ -24,31 +25,6 @@ function formatTime(iso: string) {
   });
 }
 
-function compareFn(a: ExecutionSummary, b: ExecutionSummary, col: SortColumn, dir: SortDir): number {
-  let cmp = 0;
-  switch (col) {
-    case 'startTime':
-      cmp = a.startTime.localeCompare(b.startTime);
-      break;
-    case 'status':
-      cmp = a.status.localeCompare(b.status);
-      break;
-    case 'agentId':
-      cmp = a.agentId.localeCompare(b.agentId);
-      break;
-    case 'routeId':
-      cmp = a.routeId.localeCompare(b.routeId);
-      break;
-    case 'correlationId':
-      cmp = (a.correlationId ?? '').localeCompare(b.correlationId ?? '');
-      break;
-    case 'durationMs':
-      cmp = a.durationMs - b.durationMs;
-      break;
-  }
-  return dir === 'asc' ? cmp : -cmp;
-}
-
 interface SortableThProps {
   label: string;
   column: SortColumn;
@@ -76,21 +52,12 @@ function SortableTh({ label, column, activeColumn, direction, onSort, style }: S
 
 export function ResultsTable({ results, loading }: ResultsTableProps) {
   const [expandedId, setExpandedId] = useState<string | null>(null);
-  const [sortColumn, setSortColumn] = useState<SortColumn | null>(null);
+  const sortColumn = useExecutionSearch((s) => s.sortField);
-  const [sortDir, setSortDir] = useState<SortDir>('desc');
+  const sortDir = useExecutionSearch((s) => s.sortDir);
-
+  const setSort = useExecutionSearch((s) => s.setSort);
-  const sortedResults = useMemo(() => {
-    if (!sortColumn) return results;
-    return [...results].sort((a, b) => compareFn(a, b, sortColumn, sortDir));
-  }, [results, sortColumn, sortDir]);
 
   function handleSort(col: SortColumn) {
-    if (sortColumn === col) {
+    setSort(col);
-      setSortDir((d) => (d === 'asc' ? 'desc' : 'asc'));
-    } else {
-      setSortColumn(col);
-      setSortDir('desc');
-    }
   }
 
   if (loading && results.length === 0) {
@@ -124,7 +91,7 @@ export function ResultsTable({ results, loading }: ResultsTableProps) {
           </tr>
         </thead>
         <tbody>
-          {sortedResults.map((exec) => {
+          {results.map((exec) => {
             const isExpanded = expandedId === exec.executionId;
             return (
               <ResultRow

ui/src/pages/executions/use-execution-search.ts

@@ -9,6 +9,9 @@ function todayMidnight(): string {
   return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}T00:00`;
 }
 
+type SortColumn = 'startTime' | 'status' | 'agentId' | 'routeId' | 'correlationId' | 'durationMs';
+type SortDir = 'asc' | 'desc';
+
 interface ExecutionSearchState {
   status: string[];
   timeFrom: string;
@@ -22,6 +25,8 @@ interface ExecutionSearchState {
   live: boolean;
   offset: number;
   limit: number;
+  sortField: SortColumn;
+  sortDir: SortDir;
 
   toggleLive: () => void;
   setStatus: (statuses: string[]) => void;
@@ -35,6 +40,7 @@ interface ExecutionSearchState {
   setAgentId: (v: string) => void;
   setProcessorType: (v: string) => void;
   setOffset: (v: number) => void;
+  setSort: (col: SortColumn) => void;
   clearAll: () => void;
   toSearchRequest: () => SearchRequest;
 }
@@ -52,6 +58,8 @@ export const useExecutionSearch = create<ExecutionSearchState>((set, get) => ({
   live: true,
   offset: 0,
   limit: 25,
+  sortField: 'startTime',
+  sortDir: 'desc',
 
   toggleLive: () => set((state) => ({ live: !state.live })),
   setStatus: (statuses) => set({ status: statuses, offset: 0 }),
@@ -71,6 +79,12 @@ export const useExecutionSearch = create<ExecutionSearchState>((set, get) => ({
   setAgentId: (v) => set({ agentId: v, offset: 0 }),
   setProcessorType: (v) => set({ processorType: v, offset: 0 }),
   setOffset: (v) => set({ offset: v }),
+  setSort: (col) =>
+    set((state) => ({
+      sortField: col,
+      sortDir: state.sortField === col && state.sortDir === 'desc' ? 'asc' : 'desc',
+      offset: 0,
+    })),
   clearAll: () =>
     set({
       status: ['COMPLETED', 'FAILED', 'RUNNING'],
@@ -83,6 +97,8 @@ export const useExecutionSearch = create<ExecutionSearchState>((set, get) => ({
       agentId: '',
       processorType: '',
       offset: 0,
+      sortField: 'startTime',
+      sortDir: 'desc',
     }),
 
   toSearchRequest: (): SearchRequest => {
@@ -102,6 +118,8 @@ export const useExecutionSearch = create<ExecutionSearchState>((set, get) => ({
       processorType: s.processorType || undefined,
       offset: s.offset,
       limit: s.limit,
+      sortField: s.sortField,
+      sortDir: s.sortDir,
     };
   },
 }));