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Subject [GitHub] [incubator-pinot] mayankshriv commented on a change in pull request #5483: Add QueryRequest to replace BrokerRequest in query execution engine
Date Wed, 03 Jun 2020 05:39:34 GMT

mayankshriv commented on a change in pull request #5483:

File path: pinot-common/src/main/java/org/apache/pinot/common/request/v2/utils/
@@ -0,0 +1,154 @@
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.pinot.common.request.v2.utils;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.pinot.common.request.AggregationInfo;
+import org.apache.pinot.common.request.BrokerRequest;
+import org.apache.pinot.common.request.FilterOperator;
+import org.apache.pinot.common.request.GroupBy;
+import org.apache.pinot.common.request.Selection;
+import org.apache.pinot.common.request.SelectionSort;
+import org.apache.pinot.common.request.v2.Expression;
+import org.apache.pinot.common.request.v2.FilterFunction;
+import org.apache.pinot.common.request.v2.Function;
+import org.apache.pinot.common.request.v2.OrderByExpression;
+import org.apache.pinot.common.request.v2.QueryRequest;
+import org.apache.pinot.common.utils.request.FilterQueryTree;
+import org.apache.pinot.common.utils.request.RequestUtils;
+import org.apache.pinot.pql.parsers.Pql2Compiler;
+import org.apache.pinot.pql.parsers.pql2.ast.AstNode;
+import org.apache.pinot.pql.parsers.pql2.ast.FunctionCallAstNode;
+import org.apache.pinot.pql.parsers.pql2.ast.IdentifierAstNode;
+import org.apache.pinot.pql.parsers.pql2.ast.LiteralAstNode;
+public class BrokerRequestToQueryRequestConverter {

Review comment:
       Isn't the damage already done when an expression from PinotQuery was converted to a
string in BrokerRequest? Can we always get back the original expression from the string inside
BrokerRequest (I recently ran into an issue where we lost the info whether a token was literal
or not, will dig up the details).

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