diff --git a/integ-test/build.gradle b/integ-test/build.gradle
index 1fb0c3b9140..62e1b9861af 100644
--- a/integ-test/build.gradle
+++ b/integ-test/build.gradle
@@ -557,6 +557,40 @@ integTest {
     // Exclude this IT, because they executed in another task (:integTestWithSecurity)
     exclude 'org/opensearch/sql/security/**'
 
+    // Workaround for Gradle 9.4.1 ClassCastException in TestEventReporterAsListener.started
+    // (line 58) — the bridge casts a parent test descriptor's reporter to
+    // GroupTestEventReporterInternal but a class-level @Ignore produces a non-composite parent
+    // descriptor with a leaf reporter, so the cast fails and aborts the entire integTest task
+    // even though the tests would have been skipped anyway. The bridge is registered by Gradle's
+    // own AbstractTestTask (we can't bypass it from user code), so the only available remedy is
+    // to keep these classes off the test runner's input set. Net behaviour for CI: still
+    // skipped, just at the build layer instead of inside JUnit. Remove once Gradle ships a fix.
+    // OrderIT is already excluded above.
+    exclude 'org/opensearch/sql/calcite/remote/CalciteInformationSchemaCommandIT.class'
+    exclude 'org/opensearch/sql/calcite/remote/CalciteJsonFunctionsIT.class'
+    exclude 'org/opensearch/sql/calcite/remote/CalcitePrometheusDataSourceCommandsIT.class'
+    exclude 'org/opensearch/sql/calcite/remote/CalciteShowDataSourcesCommandIT.class'
+    exclude 'org/opensearch/sql/legacy/AggregationIT.class'
+    exclude 'org/opensearch/sql/legacy/DateFormatIT.class'
+    exclude 'org/opensearch/sql/legacy/DateFunctionsIT.class'
+    exclude 'org/opensearch/sql/legacy/HashJoinIT.class'
+    exclude 'org/opensearch/sql/legacy/HavingIT.class'
+    exclude 'org/opensearch/sql/legacy/JSONRequestIT.class'
+    exclude 'org/opensearch/sql/legacy/JoinIT.class'
+    exclude 'org/opensearch/sql/legacy/MathFunctionsIT.class'
+    exclude 'org/opensearch/sql/legacy/MetricsIT.class'
+    exclude 'org/opensearch/sql/legacy/MultiQueryIT.class'
+    exclude 'org/opensearch/sql/legacy/NestedFieldQueryIT.class'
+    exclude 'org/opensearch/sql/legacy/PreparedStatementIT.class'
+    exclude 'org/opensearch/sql/legacy/QueryFunctionsIT.class'
+    exclude 'org/opensearch/sql/legacy/QueryIT.class'
+    exclude 'org/opensearch/sql/legacy/SQLFunctionsIT.class'
+    exclude 'org/opensearch/sql/legacy/ShowIT.class'
+    exclude 'org/opensearch/sql/legacy/SourceFieldIT.class'
+    exclude 'org/opensearch/sql/legacy/SubqueryIT.class'
+    exclude 'org/opensearch/sql/ppl/JsonFunctionsIT.class'
+    exclude 'org/opensearch/sql/sql/ExpressionIT.class'
+
     finalizedBy 'printIntegTestPaths'
 }
 
diff --git a/integ-test/src/test/java/org/opensearch/sql/calcite/remote/CalciteEvalCommandIT.java b/integ-test/src/test/java/org/opensearch/sql/calcite/remote/CalciteEvalCommandIT.java
index 588a4a784f9..9782ec06287 100644
--- a/integ-test/src/test/java/org/opensearch/sql/calcite/remote/CalciteEvalCommandIT.java
+++ b/integ-test/src/test/java/org/opensearch/sql/calcite/remote/CalciteEvalCommandIT.java
@@ -15,6 +15,7 @@
 import org.json.JSONObject;
 import org.junit.jupiter.api.Test;
 import org.opensearch.client.Request;
+import org.opensearch.sql.legacy.TestUtils;
 import org.opensearch.sql.ppl.PPLIntegTestCase;
 
 public class CalciteEvalCommandIT extends PPLIntegTestCase {
@@ -26,23 +27,46 @@ public void init() throws Exception {
 
     loadIndex(Index.BANK);
 
-    // Create test data for string concatenation
-    Request request1 = new Request("PUT", "/test_eval/_doc/1?refresh=true");
-    request1.setJsonEntity("{\"name\": \"Alice\", \"age\": 25, \"title\": \"Engineer\"}");
-    client().performRequest(request1);
+    // Pre-create test_eval through the helper so the analytics-engine compatibility run
+    // (tests.analytics.parquet_indices=true) provisions it as a parquet-backed composite
+    // index. Plain auto-mapping via the doc PUTs would create a Lucene-backed index, which
+    // the analytics-engine planner cannot scan ("No backend can scan all requested fields").
+    // Explicit mapping pins types so both v2 (verifySchema "string"/"bigint") and analytics
+    // paths see the same shape regardless of dynamic-mapping behavior on the parquet engine.
+    // Guarded by isIndexExist for idempotency — init() runs before each @Test method.
+    if (!TestUtils.isIndexExist(client(), "test_eval")) {
+      String testEvalMapping =
+          "{\"mappings\":{\"properties\":{"
+              + "\"name\":{\"type\":\"keyword\"},"
+              + "\"age\":{\"type\":\"long\"},"
+              + "\"title\":{\"type\":\"keyword\"}}}}";
+      TestUtils.createIndexByRestClient(client(), "test_eval", testEvalMapping);
 
-    Request request2 = new Request("PUT", "/test_eval/_doc/2?refresh=true");
-    request2.setJsonEntity("{\"name\": \"Bob\", \"age\": 30, \"title\": \"Manager\"}");
-    client().performRequest(request2);
+      // Create test data for string concatenation
+      Request request1 = new Request("PUT", "/test_eval/_doc/1?refresh=true");
+      request1.setJsonEntity("{\"name\": \"Alice\", \"age\": 25, \"title\": \"Engineer\"}");
+      client().performRequest(request1);
 
-    Request request3 = new Request("PUT", "/test_eval/_doc/3?refresh=true");
-    request3.setJsonEntity("{\"name\": \"Charlie\", \"age\": null, \"title\": \"Analyst\"}");
-    client().performRequest(request3);
+      Request request2 = new Request("PUT", "/test_eval/_doc/2?refresh=true");
+      request2.setJsonEntity("{\"name\": \"Bob\", \"age\": 30, \"title\": \"Manager\"}");
+      client().performRequest(request2);
+
+      Request request3 = new Request("PUT", "/test_eval/_doc/3?refresh=true");
+      request3.setJsonEntity("{\"name\": \"Charlie\", \"age\": null, \"title\": \"Analyst\"}");
+      client().performRequest(request3);
+    }
   }
 
   @Test
   public void testEvalStringConcatenation() throws IOException {
-    JSONObject result = executeQuery("source=test_eval | eval greeting = 'Hello ' + name");
+    // Pin the projection so column order is deterministic across execution paths — the
+    // analytics-engine route reads parquet schema in storage order, which can differ from the
+    // v2 / Lucene path's _source-iteration order. Adding an explicit | fields makes the test
+    // a strict assertion on the eval expression rather than a coincidence of projection order.
+    JSONObject result =
+        executeQuery(
+            "source=test_eval | eval greeting = 'Hello ' + name | fields name, title, age,"
+                + " greeting");
     verifySchema(
         result,
         schema("name", "string"),