hequn8128 commented on a change in pull request #9890: [FLINK-14272][python][table-planner-blink] Support Blink planner for Python UDF URL: https://github.com/apache/flink/pull/9890#discussion_r335836549
########## File path: flink-table/flink-table-planner-blink/src/test/scala/org/apache/flink/table/planner/plan/stream/table/StreamingPythonScalarFunctionSplitRuleTest.scala ########## @@ -0,0 +1,136 @@ +/* + * 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.flink.table.planner.plan.stream.table + +import org.apache.flink.api.common.typeinfo.{BasicTypeInfo, TypeInformation} +import org.apache.flink.api.scala._ +import org.apache.flink.table.api.scala._ +import org.apache.flink.table.functions.{FunctionLanguage, ScalarFunction} +import org.apache.flink.table.planner.utils.TableTestBase +import org.junit.Test + +class StreamingPythonScalarFunctionSplitRuleTest extends TableTestBase { + + @Test + def testPythonFunctionAsInputOfJavaFunction(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'a, 'b, 'c) + util.addFunction("pyFunc1", new PythonScalarFunction("pyFunc1")) + + val sqlQuery = "SELECT pyFunc1(a, b) + 1 FROM MyTable" + util.verifyPlan(sqlQuery) + } + + @Test + def testPythonFunctionMixedWithJavaFunction(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'a, 'b, 'c) + util.addFunction("pyFunc1", new PythonScalarFunction("pyFunc1")) + + val sqlQuery = "SELECT pyFunc1(a, b), c + 1 FROM MyTable" + util.verifyPlan(sqlQuery) + } + + @Test + def testPythonFunctionMixedWithJavaFunctionInWhereClause(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'a, 'b, 'c) + util.addFunction("pyFunc1", new PythonScalarFunction("pyFunc1")) + util.addFunction("pyFunc2", new PythonScalarFunction("pyFunc2")) + + val sqlQuery = "SELECT pyFunc1(a, b), c + 1 FROM MyTable WHERE pyFunc2(a, c) > 0" + util.verifyPlan(sqlQuery) + } + + @Test + def testPythonFunctionInWhereClause(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'a, 'b, 'c) + util.addFunction("pyFunc1", new PythonScalarFunction("pyFunc1")) + util.addFunction("pyFunc2", new BooleanPythonScalarFunction("pyFunc2")) + + val sqlQuery = "SELECT pyFunc1(a, b) FROM MyTable WHERE pyFunc2(a, c)" + util.verifyPlan(sqlQuery) + } + + @Test + def testChainingPythonFunction(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'a, 'b, 'c) + util.addFunction("pyFunc1", new PythonScalarFunction("pyFunc1")) + util.addFunction("pyFunc2", new PythonScalarFunction("pyFunc2")) + util.addFunction("pyFunc3", new PythonScalarFunction("pyFunc3")) + + val sqlQuery = "SELECT pyFunc3(pyFunc2(a + pyFunc1(a, c), b), c) FROM MyTable" + util.verifyPlan(sqlQuery) + } + + @Test + def testOnlyOnePythonFunction(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'a, 'b, 'c) + util.addFunction("pyFunc1", new PythonScalarFunction("pyFunc1")) + + val sqlQuery = "SELECT pyFunc1(a, b) FROM MyTable" + util.verifyPlan(sqlQuery) + } + + @Test + def testOnlyOnePythonFunctionInWhereClause(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'a, 'b, 'c) + util.addFunction("pyFunc1", new BooleanPythonScalarFunction("pyFunc1")) + + val sqlQuery = "SELECT a, b FROM MyTable WHERE pyFunc1(a, c)" + util.verifyPlan(sqlQuery) + } + + @Test + def testFieldNameUniquify(): Unit = { + val util = streamTestUtil() + util.addTableSource[(Int, Int, Int)]("MyTable", 'f0, 'f1, 'f2) + util.addFunction("pyFunc1", new PythonScalarFunction("pyFunc1")) + + val sqlQuery = "SELECT pyFunc1(f1, f2), f0 + 1 FROM MyTable" + util.verifyPlan(sqlQuery) + } +} + +class PythonScalarFunction(name: String) extends ScalarFunction { Review comment: Put these two class into `userDefinedScalarFunctions`? Thus we can reuse the two classes in other places. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
