Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[FLINK-31118][table] Add ARRAY_UNION function.
- Loading branch information
Showing
10 changed files
with
476 additions
and
77 deletions.
There are no files selected for viewing
Large diffs are not rendered by default.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
114 changes: 114 additions & 0 deletions
114
.../java/org/apache/flink/table/types/inference/strategies/CommonArrayInputTypeStrategy.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /* | ||
| * 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.types.inference.strategies; | ||
|
|
||
| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.table.functions.FunctionDefinition; | ||
| import org.apache.flink.table.types.DataType; | ||
| import org.apache.flink.table.types.inference.ArgumentCount; | ||
| import org.apache.flink.table.types.inference.CallContext; | ||
| import org.apache.flink.table.types.inference.InputTypeStrategy; | ||
| import org.apache.flink.table.types.inference.Signature; | ||
| import org.apache.flink.table.types.inference.Signature.Argument; | ||
| import org.apache.flink.table.types.logical.LegacyTypeInformationType; | ||
| import org.apache.flink.table.types.logical.LogicalType; | ||
| import org.apache.flink.table.types.logical.LogicalTypeRoot; | ||
| import org.apache.flink.table.types.logical.utils.LogicalTypeMerging; | ||
| import org.apache.flink.table.types.utils.TypeConversions; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.IntStream; | ||
|
|
||
| /** An {@link InputTypeStrategy} that expects that all arguments have a common array type. */ | ||
| @Internal | ||
| public final class CommonArrayInputTypeStrategy implements InputTypeStrategy { | ||
|
|
||
| private static final Argument COMMON_ARGUMENT = Argument.ofGroup("COMMON"); | ||
|
|
||
| private final ArgumentCount argumentCount; | ||
|
|
||
| public CommonArrayInputTypeStrategy(ArgumentCount argumentCount) { | ||
| this.argumentCount = argumentCount; | ||
| } | ||
|
|
||
| @Override | ||
| public ArgumentCount getArgumentCount() { | ||
| return argumentCount; | ||
| } | ||
|
|
||
| @Override | ||
| public Optional<List<DataType>> inferInputTypes( | ||
| CallContext callContext, boolean throwOnFailure) { | ||
| List<DataType> argumentDataTypes = callContext.getArgumentDataTypes(); | ||
| List<LogicalType> argumentTypes = | ||
| argumentDataTypes.stream() | ||
| .map(DataType::getLogicalType) | ||
| .collect(Collectors.toList()); | ||
|
|
||
| if (!argumentTypes.stream() | ||
| .allMatch(logicalType -> logicalType.is(LogicalTypeRoot.ARRAY))) { | ||
| return callContext.fail(throwOnFailure, "All arguments requires to be a ARRAY type"); | ||
| } | ||
|
|
||
| if (argumentTypes.stream().anyMatch(CommonArrayInputTypeStrategy::isLegacyType)) { | ||
| return Optional.of(argumentDataTypes); | ||
| } | ||
|
|
||
| Optional<LogicalType> commonType = LogicalTypeMerging.findCommonType(argumentTypes); | ||
|
|
||
| if (!commonType.isPresent()) { | ||
| return callContext.fail( | ||
| throwOnFailure, | ||
| "Could not find a common type for arguments: %s", | ||
| argumentDataTypes); | ||
| } | ||
|
|
||
| return commonType.map( | ||
| type -> | ||
| Collections.nCopies( | ||
| argumentTypes.size(), TypeConversions.fromLogicalToDataType(type))); | ||
| } | ||
|
|
||
| @Override | ||
| public List<Signature> getExpectedSignatures(FunctionDefinition definition) { | ||
| Optional<Integer> minCount = argumentCount.getMinCount(); | ||
| Optional<Integer> maxCount = argumentCount.getMaxCount(); | ||
|
|
||
| int numberOfMandatoryArguments = minCount.orElse(0); | ||
|
|
||
| if (maxCount.isPresent()) { | ||
| return IntStream.range(numberOfMandatoryArguments, maxCount.get() + 1) | ||
| .mapToObj(count -> Signature.of(Collections.nCopies(count, COMMON_ARGUMENT))) | ||
| .collect(Collectors.toList()); | ||
| } | ||
|
|
||
| List<Argument> arguments = | ||
| new ArrayList<>(Collections.nCopies(numberOfMandatoryArguments, COMMON_ARGUMENT)); | ||
| arguments.add(Argument.ofGroupVarying("COMMON")); | ||
| return Collections.singletonList(Signature.of(arguments)); | ||
| } | ||
|
|
||
| private static boolean isLegacyType(LogicalType type) { | ||
| return type instanceof LegacyTypeInformationType; | ||
| } | ||
| } |
55 changes: 55 additions & 0 deletions
55
...a/org/apache/flink/table/types/inference/strategies/CommonArrayInputTypeStrategyTest.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * 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.types.inference.strategies; | ||
|
|
||
| import org.apache.flink.table.api.DataTypes; | ||
| import org.apache.flink.table.types.inference.InputTypeStrategies; | ||
| import org.apache.flink.table.types.inference.InputTypeStrategiesTestBase; | ||
|
|
||
| import java.util.stream.Stream; | ||
|
|
||
| /** Tests for {@link CommonArrayInputTypeStrategy}. */ | ||
| class CommonArrayInputTypeStrategyTest extends InputTypeStrategiesTestBase { | ||
|
|
||
| @Override | ||
| protected Stream<TestSpec> testData() { | ||
| return Stream.of( | ||
| TestSpec.forStrategy(InputTypeStrategies.commonArrayType(2)) | ||
| .expectSignature("f(<COMMON>, <COMMON>)") | ||
| .calledWithArgumentTypes( | ||
| DataTypes.ARRAY(DataTypes.INT()), | ||
| DataTypes.ARRAY(DataTypes.DOUBLE().notNull()).notNull()) | ||
| .expectArgumentTypes( | ||
| DataTypes.ARRAY(DataTypes.DOUBLE()), | ||
| DataTypes.ARRAY(DataTypes.DOUBLE())), | ||
| TestSpec.forStrategy( | ||
| "Strategy fails if not all of the argument types are ARRAY", | ||
| InputTypeStrategies.commonArrayType(2)) | ||
| .calledWithArgumentTypes(DataTypes.INT(), DataTypes.ARRAY(DataTypes.INT())) | ||
| .expectErrorMessage("All arguments requires to be a ARRAY type"), | ||
| TestSpec.forStrategy( | ||
| "Strategy fails if can not find a common type", | ||
| InputTypeStrategies.commonArrayType(2)) | ||
| .calledWithArgumentTypes( | ||
| DataTypes.ARRAY(DataTypes.INT()), | ||
| DataTypes.ARRAY(DataTypes.STRING())) | ||
| .expectErrorMessage( | ||
| "Could not find a common type for arguments: [ARRAY<INT>, ARRAY<STRING>]")); | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.