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[FLINK-12017][table-planner-blink] Support translation from Rank/Dedu…
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71 changes: 71 additions & 0 deletions
71
...k-table-planner-blink/src/main/java/org/apache/flink/table/plan/util/KeySelectorUtil.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * 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.plan.util; | ||
|
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| import org.apache.flink.table.api.TableConfig; | ||
| import org.apache.flink.table.codegen.CodeGeneratorContext; | ||
| import org.apache.flink.table.codegen.ProjectionCodeGenerator; | ||
| import org.apache.flink.table.generated.GeneratedProjection; | ||
| import org.apache.flink.table.runtime.keySelector.BaseRowKeySelector; | ||
| import org.apache.flink.table.runtime.keySelector.BinaryRowKeySelector; | ||
| import org.apache.flink.table.runtime.keySelector.NullBinaryRowKeySelector; | ||
| import org.apache.flink.table.type.InternalType; | ||
| import org.apache.flink.table.type.RowType; | ||
| import org.apache.flink.table.typeutils.BaseRowSerializer; | ||
| import org.apache.flink.table.typeutils.BaseRowTypeInfo; | ||
| import org.apache.flink.table.typeutils.TypeCheckUtils; | ||
|
|
||
| /** | ||
| * Utility for KeySelector. | ||
| */ | ||
| public class KeySelectorUtil { | ||
|
|
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| /** | ||
| * Create a BaseRowKeySelector to extract keys from DataStream which type is BaseRowTypeInfo. | ||
| * | ||
| * @param keyFields key fields | ||
| * @param rowType type of DataStream to extract keys | ||
| * | ||
| * @return the BaseRowKeySelector to extract keys from DataStream which type is BaseRowTypeInfo. | ||
| */ | ||
| public static BaseRowKeySelector getBaseRowSelector(int[] keyFields, BaseRowTypeInfo rowType) { | ||
| if (keyFields.length > 0) { | ||
| InternalType[] inputFieldTypes = rowType.getInternalTypes(); | ||
| String[] inputFieldNames = rowType.getFieldNames(); | ||
| InternalType[] keyFieldTypes = new InternalType[keyFields.length]; | ||
| String[] keyFieldNames = new String[keyFields.length]; | ||
| for (int i = 0; i < keyFields.length; ++i) { | ||
| keyFieldTypes[i] = inputFieldTypes[keyFields[i]]; | ||
| keyFieldNames[i] = inputFieldNames[keyFields[i]]; | ||
| } | ||
| RowType returnType = new RowType(keyFieldTypes, keyFieldNames); | ||
| RowType inputType = new RowType(inputFieldTypes, rowType.getFieldNames()); | ||
| GeneratedProjection generatedProjection = ProjectionCodeGenerator.generateProjection( | ||
| CodeGeneratorContext.apply(new TableConfig()), | ||
| BaseRowSerializer.class.getSimpleName(), inputType, returnType, keyFields); | ||
| BaseRowTypeInfo keyRowType = returnType.toTypeInfo(); | ||
| // check if type implements proper equals/hashCode | ||
| TypeCheckUtils.validateEqualsHashCode("grouping", keyRowType); | ||
| return new BinaryRowKeySelector(keyRowType, generatedProjection); | ||
| } else { | ||
| return new NullBinaryRowKeySelector(); | ||
| } | ||
| } | ||
|
|
||
| } |
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148 changes: 148 additions & 0 deletions
148
...-planner-blink/src/main/scala/org/apache/flink/table/codegen/EqualiserCodeGenerator.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| /* | ||
| * 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.codegen | ||
|
|
||
| import org.apache.flink.table.api.TableConfig | ||
| import org.apache.flink.table.codegen.CodeGenUtils._ | ||
| import org.apache.flink.table.codegen.Indenter.toISC | ||
| import org.apache.flink.table.dataformat.{BaseRow, BinaryRow} | ||
| import org.apache.flink.table.generated.{GeneratedRecordEqualiser, RecordEqualiser} | ||
| import org.apache.flink.table.`type`.{DateType, InternalType, PrimitiveType, RowType, TimeType, TimestampType} | ||
|
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| class EqualiserCodeGenerator(fieldTypes: Seq[InternalType]) { | ||
|
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| private val BASE_ROW = className[BaseRow] | ||
| private val BINARY_ROW = className[BinaryRow] | ||
| private val RECORD_EQUALISER = className[RecordEqualiser] | ||
| private val LEFT_INPUT = "left" | ||
| private val RIGHT_INPUT = "right" | ||
|
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| def generateRecordEqualiser(name: String): GeneratedRecordEqualiser = { | ||
| // ignore time zone | ||
| val ctx = CodeGeneratorContext(new TableConfig) | ||
| val className = newName(name) | ||
| val header = | ||
| s""" | ||
| |if ($LEFT_INPUT.getHeader() != $RIGHT_INPUT.getHeader()) { | ||
| | return false; | ||
| |} | ||
| """.stripMargin | ||
|
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| val codes = for (i <- fieldTypes.indices) yield { | ||
| val fieldType = fieldTypes(i) | ||
| val fieldTypeTerm = primitiveTypeTermForType(fieldType) | ||
| val result = s"cmp$i" | ||
| val leftNullTerm = "leftIsNull$" + i | ||
| val rightNullTerm = "rightIsNull$" + i | ||
| val leftFieldTerm = "leftField$" + i | ||
| val rightFieldTerm = "rightField$" + i | ||
| val equalsCode = if (isInternalPrimitive(fieldType)) { | ||
| s"$leftFieldTerm == $rightFieldTerm" | ||
| } else if (isBaseRow(fieldType)) { | ||
| val equaliserGenerator = | ||
| new EqualiserCodeGenerator(fieldType.asInstanceOf[RowType].getFieldTypes) | ||
| val generatedEqualiser = equaliserGenerator | ||
| .generateRecordEqualiser("field$" + i + "GeneratedEqualiser") | ||
| val generatedEqualiserTerm = ctx.addReusableObject( | ||
| generatedEqualiser, "field$" + i + "GeneratedEqualiser") | ||
| val equaliserTypeTerm = classOf[RecordEqualiser].getCanonicalName | ||
| val equaliserTerm = newName("equaliser") | ||
| ctx.addReusableMember(s"private $equaliserTypeTerm $equaliserTerm = null;") | ||
| ctx.addReusableInitStatement( | ||
| s""" | ||
| |$equaliserTerm = ($equaliserTypeTerm) | ||
| | $generatedEqualiserTerm.newInstance(Thread.currentThread().getContextClassLoader()); | ||
| |""".stripMargin) | ||
| s"$equaliserTerm.equalsWithoutHeader($leftFieldTerm, $rightFieldTerm)" | ||
| } else { | ||
| s"$leftFieldTerm.equals($rightFieldTerm)" | ||
| } | ||
| val leftReadCode = baseRowFieldReadAccess(ctx, i, LEFT_INPUT, fieldType) | ||
| val rightReadCode = baseRowFieldReadAccess(ctx, i, RIGHT_INPUT, fieldType) | ||
| s""" | ||
| |boolean $leftNullTerm = $LEFT_INPUT.isNullAt($i); | ||
| |boolean $rightNullTerm = $RIGHT_INPUT.isNullAt($i); | ||
| |boolean $result; | ||
| |if ($leftNullTerm && $rightNullTerm) { | ||
| | $result = true; | ||
| |} else if ($leftNullTerm || $rightNullTerm) { | ||
| | $result = false; | ||
| |} else { | ||
| | $fieldTypeTerm $leftFieldTerm = $leftReadCode; | ||
| | $fieldTypeTerm $rightFieldTerm = $rightReadCode; | ||
| | $result = $equalsCode; | ||
| |} | ||
| |if (!$result) { | ||
| | return false; | ||
| |} | ||
| """.stripMargin | ||
| } | ||
|
|
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| val functionCode = | ||
| j""" | ||
| public final class $className implements $RECORD_EQUALISER { | ||
|
|
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| ${ctx.reuseMemberCode()} | ||
|
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| public $className(Object[] references) throws Exception { | ||
| ${ctx.reuseInitCode()} | ||
| } | ||
|
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| @Override | ||
| public boolean equals($BASE_ROW $LEFT_INPUT, $BASE_ROW $RIGHT_INPUT) { | ||
| if ($LEFT_INPUT instanceof $BINARY_ROW && $RIGHT_INPUT instanceof $BINARY_ROW) { | ||
| return $LEFT_INPUT.equals($RIGHT_INPUT); | ||
| } else { | ||
| $header | ||
| ${ctx.reuseLocalVariableCode()} | ||
| ${codes.mkString("\n")} | ||
| return true; | ||
| } | ||
| } | ||
|
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| @Override | ||
| public boolean equalsWithoutHeader($BASE_ROW $LEFT_INPUT, $BASE_ROW $RIGHT_INPUT) { | ||
| if ($LEFT_INPUT instanceof $BINARY_ROW && $RIGHT_INPUT instanceof $BINARY_ROW) { | ||
| return (($BINARY_ROW)$LEFT_INPUT).equalsWithoutHeader((($BINARY_ROW)$RIGHT_INPUT)); | ||
| } else { | ||
| ${ctx.reuseLocalVariableCode()} | ||
| ${codes.mkString("\n")} | ||
| return true; | ||
| } | ||
| } | ||
| } | ||
| """.stripMargin | ||
|
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| new GeneratedRecordEqualiser(className, functionCode, ctx.references.toArray) | ||
| } | ||
|
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| private def isInternalPrimitive(t: InternalType): Boolean = t match { | ||
| case _: PrimitiveType => true | ||
|
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| case _: DateType => true | ||
| case TimeType.INSTANCE => true | ||
| case _: TimestampType => true | ||
|
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| case _ => false | ||
| } | ||
|
|
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| private def isBaseRow(t: InternalType): Boolean = t match { | ||
| case _: RowType => true | ||
| case _ => false | ||
| } | ||
| } |
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