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Add aggregate function count_if for relational table
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331 changes: 331 additions & 0 deletions
331
...st/src/test/java/org/apache/iotdb/relational/it/query/recent/IoTDBTableAggregationIT.java
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101 changes: 101 additions & 0 deletions
101
...b/db/queryengine/execution/operator/source/relational/aggregation/CountIfAccumulator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package org.apache.iotdb.db.queryengine.execution.operator.source.relational.aggregation; | ||
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| import org.apache.tsfile.block.column.Column; | ||
| import org.apache.tsfile.block.column.ColumnBuilder; | ||
| import org.apache.tsfile.file.metadata.statistics.Statistics; | ||
| import org.apache.tsfile.utils.RamUsageEstimator; | ||
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| public class CountIfAccumulator implements TableAccumulator { | ||
| private static final long INSTANCE_SIZE = | ||
| RamUsageEstimator.shallowSizeOfInstance(CountIfAccumulator.class); | ||
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| private long countState = 0; | ||
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| @Override | ||
| public long getEstimatedSize() { | ||
| return INSTANCE_SIZE; | ||
| } | ||
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| @Override | ||
| public TableAccumulator copy() { | ||
| return new CountIfAccumulator(); | ||
| } | ||
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| @Override | ||
| public void addInput(Column[] arguments) { | ||
| int count = arguments[0].getPositionCount(); | ||
| for (int i = 0; i < count; i++) { | ||
| if (!arguments[0].isNull(i) && arguments[0].getBoolean(i)) { | ||
| countState++; | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public void addIntermediate(Column argument) { | ||
| for (int i = 0; i < argument.getPositionCount(); i++) { | ||
| if (argument.isNull(i)) { | ||
| continue; | ||
| } | ||
| countState += argument.getLong(i); | ||
| } | ||
| } | ||
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| @Override | ||
| public void evaluateIntermediate(ColumnBuilder columnBuilder) { | ||
| columnBuilder.writeLong(countState); | ||
| } | ||
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| @Override | ||
| public void evaluateFinal(ColumnBuilder columnBuilder) { | ||
| columnBuilder.writeLong(countState); | ||
| } | ||
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| @Override | ||
| public boolean hasFinalResult() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public void removeInput(Column[] arguments) { | ||
| for (int i = 0; i < arguments[0].getPositionCount(); i++) { | ||
| if (!arguments[0].isNull(i) && arguments[0].getBoolean(i)) { | ||
| countState--; | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean removable() { | ||
| return true; | ||
| } | ||
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| @Override | ||
| public void addStatistics(Statistics[] statistics) { | ||
| throw new UnsupportedOperationException("CountIfAccumulator does not support statistics"); | ||
| } | ||
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| @Override | ||
| public void reset() { | ||
| countState = 0; | ||
| } | ||
| } |
79 changes: 79 additions & 0 deletions
79
...e/execution/operator/source/relational/aggregation/grouped/GroupedCountIfAccumulator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.iotdb.db.queryengine.execution.operator.source.relational.aggregation.grouped; | ||
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| import org.apache.iotdb.db.queryengine.execution.operator.source.relational.aggregation.grouped.array.LongBigArray; | ||
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| import org.apache.tsfile.block.column.Column; | ||
| import org.apache.tsfile.block.column.ColumnBuilder; | ||
| import org.apache.tsfile.utils.RamUsageEstimator; | ||
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| public class GroupedCountIfAccumulator implements GroupedAccumulator { | ||
| private final LongBigArray countValues = new LongBigArray(0L); | ||
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| private static final long INSTANCE_SIZE = | ||
| RamUsageEstimator.shallowSizeOfInstance(GroupedCountIfAccumulator.class); | ||
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| @Override | ||
| public long getEstimatedSize() { | ||
| return INSTANCE_SIZE + countValues.sizeOf(); | ||
| } | ||
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| @Override | ||
| public void setGroupCount(long groupCount) { | ||
| countValues.ensureCapacity(groupCount); | ||
| } | ||
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| @Override | ||
| public void addInput(int[] groupIds, Column[] arguments) { | ||
| for (int i = 0; i < groupIds.length; i++) { | ||
| if (!arguments[0].isNull(i) && arguments[0].getBoolean(i)) { | ||
| countValues.increment(groupIds[i]); | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public void addIntermediate(int[] groupIds, Column argument) { | ||
| for (int i = 0; i < groupIds.length; i++) { | ||
| if (!argument.isNull(i)) { | ||
| countValues.add(groupIds[i], argument.getLong(i)); | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public void evaluateIntermediate(int groupId, ColumnBuilder columnBuilder) { | ||
| columnBuilder.writeLong(countValues.get(groupId)); | ||
| } | ||
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| @Override | ||
| public void evaluateFinal(int groupId, ColumnBuilder columnBuilder) { | ||
| columnBuilder.writeLong(countValues.get(groupId)); | ||
| } | ||
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| @Override | ||
| public void prepareFinal() {} | ||
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| @Override | ||
| public void reset() { | ||
| countValues.reset(); | ||
| } | ||
| } |
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