siddharthteotia commented on a change in pull request #6998: URL: https://github.com/apache/incubator-pinot/pull/6998#discussion_r648426337
########## File path: pinot-core/src/test/java/org/apache/pinot/core/query/optimizer/statement/JsonStatementOptimizerTest.java ########## @@ -0,0 +1,201 @@ +/** + * 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 + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.pinot.core.query.optimizer.statement; + +import org.apache.pinot.common.request.BrokerRequest; +import org.apache.pinot.common.request.PinotQuery; +import org.apache.pinot.core.query.optimizer.QueryOptimizer; +import org.apache.pinot.spi.data.FieldSpec; +import org.apache.pinot.spi.data.Schema; +import org.apache.pinot.sql.parsers.CalciteSqlCompiler; +import org.testng.Assert; +import org.testng.annotations.Test; + + +public class JsonStatementOptimizerTest { + private static final QueryOptimizer OPTIMIZER = new QueryOptimizer(); + private static final CalciteSqlCompiler SQL_COMPILER = new CalciteSqlCompiler(); + private static final Schema SCHEMA = + new Schema.SchemaBuilder().setSchemaName("testTable").addSingleValueDimension("intColumn", FieldSpec.DataType.INT) + .addSingleValueDimension("longColumn", FieldSpec.DataType.LONG) + .addSingleValueDimension("stringColumn", FieldSpec.DataType.STRING) + .addMultiValueDimension("jsonColumn", FieldSpec.DataType.JSON).build(); + + /** Test that a json path expression in SELECT list is properly converted to a JSON_EXTRACT_SCALAR function within an AS function. */ + @Test + public void testJsonSelect() { + // SELECT using a simple json path expression. + BrokerRequest sqlBrokerRequest1 = SQL_COMPILER.compileToBrokerRequest("SELECT jsonColumn.x FROM testTable"); + PinotQuery pinotQuery1 = sqlBrokerRequest1.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery1, SCHEMA); + + Assert.assertEquals(pinotQuery1.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.x>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn.x))]))"); + + // SELECT using json path expressions with array addressing. + BrokerRequest sqlBrokerRequest2 = SQL_COMPILER.compileToBrokerRequest("SELECT jsonColumn.data[0][1].a.b[0] FROM testTable"); + PinotQuery pinotQuery2 = sqlBrokerRequest2.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery2, SCHEMA); + + Assert.assertEquals(pinotQuery2.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.data[0][1].a.b[0]>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn.data[0][1].a.b[0]))]))"); + + // SELECT using json path expressions within double quotes. + BrokerRequest sqlBrokerRequest3 = SQL_COMPILER.compileToBrokerRequest("SELECT \"jsonColumn.a.b.c[0][1][2][3].d.e.f[0].g\" FROM testTable"); + PinotQuery pinotQuery3 = sqlBrokerRequest3.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery2, SCHEMA); + + Assert.assertEquals(pinotQuery2.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.data[0][1].a.b[0]>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.data[0][1].a.b[0]>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)]))]))"); + } + + /** Test that a predicate comparing a json path expression with literal is properly converted into a JSON_MATCH function. */ + @Test + public void testJsonFilter() { + // String literal + BrokerRequest sqlBrokerRequest1 = + SQL_COMPILER.compileToBrokerRequest("SELECT * FROM testTable WHERE jsonColumn.name.first = 'daffy'"); + PinotQuery pinotQuery1 = sqlBrokerRequest1.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery1, SCHEMA); + + Assert.assertEquals(pinotQuery1.getFilterExpression().toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:JSON_MATCH, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:\"$.name.first\" = 'daffy'>)]))"); + + // Numerical literal + BrokerRequest sqlBrokerRequest2 = + SQL_COMPILER.compileToBrokerRequest("SELECT * FROM testTable WHERE jsonColumn.id = 101"); + PinotQuery pinotQuery2 = sqlBrokerRequest2.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery2, SCHEMA); + + Assert.assertEquals(pinotQuery2.getFilterExpression().toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:JSON_MATCH, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:\"$.id\" = 101>)]))"); + } + + /** Test that a json path expression in GROUP BY clause is properly converted into a JSON_EXTRACT_SCALAR function. */ + @Test + public void testJsonGroupBy() { + BrokerRequest sqlBrokerRequest = + SQL_COMPILER.compileToBrokerRequest("SELECT jsonColumn.id, count(*) FROM testTable GROUP BY jsonColumn.id"); + PinotQuery pinotQuery = sqlBrokerRequest.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery, SCHEMA); + + Assert.assertEquals(pinotQuery.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.id>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn.id))]))"); + + Assert.assertEquals(pinotQuery.getGroupByList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.id>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)]))"); + } + + /** Test that a json path expression in HAVING clause is properly converted into a JSON_EXTRACT_SCALAR function. */ + @Test + public void testJsonGroupByHaving() { + + // Test HAVING clause with a STRING value extracted using json path expression. + BrokerRequest sqlBrokerRequest1 = + SQL_COMPILER.compileToBrokerRequest("SELECT jsonColumn.name.last, count(*) FROM testTable GROUP BY jsonColumn.name.last HAVING jsonColumn.name.last = 'mouse'"); + PinotQuery pinotQuery1 = sqlBrokerRequest1.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery1, SCHEMA); + + Assert.assertEquals(pinotQuery1.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn.name.last))]))"); + + Assert.assertEquals(pinotQuery1.getGroupByList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)]))"); + + Assert.assertEquals(pinotQuery1.getHavingExpression().toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:EQUALS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:LITERAL, literal:<Literal stringValue:mouse>)]))"); + + // Test HAVING clause with a DOUBLE value extract using json path expression. + BrokerRequest sqlBrokerRequest2 = + SQL_COMPILER.compileToBrokerRequest("SELECT jsonColumn.name.last, count(*) FROM testTable GROUP BY jsonColumn.name.last HAVING jsonColumn.name.last = 'mouse'"); + PinotQuery pinotQuery2 = sqlBrokerRequest2.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery2, SCHEMA); + + Assert.assertEquals(pinotQuery2.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn.name.last))]))"); + + Assert.assertEquals(pinotQuery2.getGroupByList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)]))"); + + Assert.assertEquals(pinotQuery2.getHavingExpression().toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:EQUALS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:LITERAL, literal:<Literal stringValue:mouse>)]))"); + } + + /** Test a complex SQL statement with json path expression in SELECT, WHERE, and GROUP BY clauses. */ + @Test + public void testJsonSelectFilterGroupBy() { + BrokerRequest sqlBrokerRequest = SQL_COMPILER.compileToBrokerRequest( + "SELECT jsonColumn.name.last, count(*) FROM testTable WHERE jsonColumn.id = 101 GROUP BY jsonColumn.name.last"); + PinotQuery pinotQuery = sqlBrokerRequest.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery, SCHEMA); + + Assert.assertEquals(pinotQuery.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)])), Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn.name.last))]))"); + + Assert.assertEquals(pinotQuery.getFilterExpression().toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:JSON_MATCH, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:\"$.id\" = 101>)]))"); + + Assert.assertEquals(pinotQuery.getGroupByList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.last>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)]))"); + } + + /** Test an aggregation function over json path expression in SELECT clause. */ + @Test + public void testStringFunctionOverJsonPathSelectExpression() { + BrokerRequest sqlBrokerRequest = + SQL_COMPILER.compileToBrokerRequest("SELECT UPPER(jsonColumn.name.first) FROM testTable"); + PinotQuery pinotQuery = sqlBrokerRequest.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery, SCHEMA); + + Assert.assertEquals(pinotQuery.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:UPPER, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.name.first>), Expression(type:LITERAL, literal:<Literal stringValue:STRING>), Expression(type:LITERAL, literal:<Literal stringValue:null>)]))])), Expression(type:IDENTIFIER, identifier:Identifier(name:upper(jsonColumn.name.first)))]))"); + } + + /** Test a numerical function over json path expression in SELECT clause. */ + @Test + public void testNumericalFunctionOverJsonPathSelectExpression() { + + // Test without user-specified alias. + BrokerRequest sqlBrokerRequest1 = + SQL_COMPILER.compileToBrokerRequest("SELECT MAX(jsonColumn.id) FROM testTable"); + PinotQuery pinotQuery1 = sqlBrokerRequest1.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery1, SCHEMA); + + Assert.assertEquals(pinotQuery1.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:MAX, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.id>), Expression(type:LITERAL, literal:<Literal stringValue:DOUBLE>), Expression(type:LITERAL, literal:<Literal doubleValue:-Infinity>)]))])), Expression(type:IDENTIFIER, identifier:Identifier(name:max(jsonColumn.id)))]))"); + + // Test with user-specified alias. + BrokerRequest sqlBrokerRequest2 = + SQL_COMPILER.compileToBrokerRequest("SELECT MAX(jsonColumn.id) AS x FROM testTable"); + PinotQuery pinotQuery2 = sqlBrokerRequest2.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery2, SCHEMA); + + Assert.assertEquals(pinotQuery2.getSelectList().get(0).toString(), + "Expression(type:FUNCTION, functionCall:Function(operator:AS, operands:[Expression(type:FUNCTION, functionCall:Function(operator:MAX, operands:[Expression(type:FUNCTION, functionCall:Function(operator:JSON_EXTRACT_SCALAR, operands:[Expression(type:IDENTIFIER, identifier:Identifier(name:jsonColumn)), Expression(type:LITERAL, literal:<Literal stringValue:$.id>), Expression(type:LITERAL, literal:<Literal stringValue:DOUBLE>), Expression(type:LITERAL, literal:<Literal doubleValue:-Infinity>)]))])), Expression(type:IDENTIFIER, identifier:Identifier(name:x))]))"); + + // Test with nested function calls (minus function being used within max function). + BrokerRequest sqlBrokerRequest3 = + SQL_COMPILER.compileToBrokerRequest("SELECT MAX(jsonColumn.id - 5) FROM testTable"); + PinotQuery pinotQuery3 = sqlBrokerRequest3.getPinotQuery(); + OPTIMIZER.optimize(pinotQuery3, SCHEMA); + Review comment: Let's cover transform functions as well please -- This is an automated message from the Apache Git Service. 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