Add limit-filter-limit pushdown IT

Signed-off-by: Yuanchun Shen <yuanchu@amazon.com>

Author: yuancu

integ-test/src/test/java/org/opensearch/sql/ppl/ExplainIT.java

@@ -164,6 +164,20 @@ public void testMultipleLimitExplain() throws Exception {
                 + "| head 10 "
                 + "| head 5 "
                 + "| fields age"));
+
+    // TODO: Fix limit-filter-limit pushdown without Calcite
+    String expected10ThenFilterThen5 =
+        isCalciteEnabled()
+            ? loadFromFile("expectedOutput/calcite/explain_limit_10_filter_5.json")
+            : loadFromFile("expectedOutput/ppl/explain_limit_10_filter_5.json");
+    assertJsonEqualsIgnoreRelId(
+        expected10ThenFilterThen5,
+        explainQueryToString(
+            "source=opensearch-sql_test_index_account"
+                + "| head 10 "
+                + "| where age > 30 "
+                + "| head 5 "
+                + "| fields age"));
   }
 
   @Test

integ-test/src/test/resources/expectedOutput/calcite/explain_limit_10_filter_5.json

@@ -0,0 +1,6 @@
+{
+  "calcite": {
+    "logical": "LogicalProject(age=[$8])\n  LogicalSort(fetch=[5])\n    LogicalFilter(condition=[>($8, 30)])\n      LogicalSort(fetch=[10])\n        CalciteLogicalIndexScan(table=[[OpenSearch, opensearch-sql_test_index_account]])\n",
+    "physical": "EnumerableLimit(fetch=[5])\n  EnumerableCalc(expr#0=[{inputs}], expr#1=[30], expr#2=[>($t0, $t1)], age=[$t0], $condition=[$t2])\n    CalciteEnumerableIndexScan(table=[[OpenSearch, opensearch-sql_test_index_account]], PushDownContext=[[LIMIT->10, PROJECT->[age]], OpenSearchRequestBuilder(sourceBuilder={\"from\":0,\"size\":10,\"timeout\":\"1m\",\"_source\":{\"includes\":[\"age\"],\"excludes\":[]}}, requestedTotalSize=10, pageSize=null, startFrom=0)])\n"
+  }
+}

integ-test/src/test/resources/expectedOutput/ppl/explain_limit_10_filter_5.json

@@ -0,0 +1,17 @@
+{
+  "root": {
+    "name": "ProjectOperator",
+    "description": {
+      "fields": "[age]"
+    },
+    "children": [
+      {
+        "name": "OpenSearchIndexScan",
+        "description": {
+          "request": "OpenSearchQueryRequest(indexName=opensearch-sql_test_index_account, sourceBuilder={\"from\":0,\"size\":5,\"timeout\":\"1m\",\"query\":{\"range\":{\"age\":{\"from\":30,\"to\":null,\"include_lower\":false,\"include_upper\":true,\"boost\":1.0}}},\"_source\":{\"includes\":[\"age\"],\"excludes\":[]},\"sort\":[{\"_doc\":{\"order\":\"asc\"}}]}, needClean=true, searchDone=false, pitId=null, cursorKeepAlive=null, searchAfter=null, searchResponse=null)"
+        },
+        "children": []
+      }
+    ]
+  }
+}