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60 changes: 60 additions & 0 deletions
60
...org/apache/iotdb/db/queryengine/plan/expression/visitor/ExistUnknownTypeInExpression.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| /* | ||
| * 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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|
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| package org.apache.iotdb.db.queryengine.plan.expression.visitor; | ||
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| import org.apache.iotdb.db.queryengine.plan.expression.Expression; | ||
| import org.apache.iotdb.db.queryengine.plan.expression.leaf.LeafOperand; | ||
| import org.apache.iotdb.db.queryengine.plan.expression.leaf.TimeSeriesOperand; | ||
| import org.apache.iotdb.db.queryengine.plan.expression.multi.FunctionExpression; | ||
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| import org.apache.tsfile.enums.TSDataType; | ||
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| import java.util.Collections; | ||
| import java.util.List; | ||
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| public class ExistUnknownTypeInExpression extends CollectVisitor { | ||
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| @Override | ||
| public List<Expression> visitLeafOperand(LeafOperand leafOperand, Void context) { | ||
| return Collections.emptyList(); | ||
| } | ||
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| @Override | ||
| public List<Expression> visitFunctionExpression( | ||
| FunctionExpression functionExpression, Void context) { | ||
| List<List<Expression>> ret = getResultsFromChild(functionExpression, null); | ||
| for (List<Expression> row : ret) { | ||
| if (!row.isEmpty()) { | ||
| return row; | ||
| } | ||
| } | ||
| return Collections.emptyList(); | ||
| } | ||
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| @Override | ||
| public List<Expression> visitTimeSeriesOperand( | ||
| TimeSeriesOperand timeSeriesOperand, Void context) { | ||
| if (timeSeriesOperand.getPath().getSeriesType() == TSDataType.UNKNOWN) { | ||
| return Collections.singletonList(timeSeriesOperand); | ||
| } | ||
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| return Collections.emptyList(); | ||
| } | ||
| } |
77 changes: 77 additions & 0 deletions
77
...ryengine/plan/expression/visitor/cartesian/ConcatDeviceAndBindSchemaForHavingVisitor.java
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| @@ -0,0 +1,77 @@ | ||
| /* | ||
| * 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.plan.expression.visitor.cartesian; | ||
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| import org.apache.iotdb.commons.path.MeasurementPath; | ||
| import org.apache.iotdb.commons.path.PartialPath; | ||
| import org.apache.iotdb.db.exception.sql.SemanticException; | ||
| import org.apache.iotdb.db.queryengine.plan.analyze.ExpressionUtils; | ||
| import org.apache.iotdb.db.queryengine.plan.expression.Expression; | ||
| import org.apache.iotdb.db.queryengine.plan.expression.leaf.TimeSeriesOperand; | ||
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| import org.apache.tsfile.enums.TSDataType; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
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| import static org.apache.iotdb.db.queryengine.plan.expression.visitor.cartesian.BindSchemaForExpressionVisitor.transformViewPath; | ||
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| public class ConcatDeviceAndBindSchemaForHavingVisitor | ||
| extends ConcatDeviceAndBindSchemaForExpressionVisitor { | ||
| @Override | ||
| public List<Expression> visitTimeSeriesOperand( | ||
| TimeSeriesOperand timeSeriesOperand, Context context) { | ||
| PartialPath measurement = timeSeriesOperand.getPath(); | ||
| PartialPath concatPath = context.getDevicePath().concatPath(measurement); | ||
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| List<MeasurementPath> actualPaths = | ||
| context.getSchemaTree().searchMeasurementPaths(concatPath).left; | ||
| if (actualPaths.isEmpty()) { | ||
| return Collections.singletonList( | ||
| new TimeSeriesOperand(new MeasurementPath(concatPath, TSDataType.UNKNOWN))); | ||
| } | ||
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| List<MeasurementPath> nonViewActualPaths = new ArrayList<>(); | ||
| List<MeasurementPath> viewPaths = new ArrayList<>(); | ||
| for (MeasurementPath measurementPath : actualPaths) { | ||
| if (measurementPath.getMeasurementSchema().isLogicalView()) { | ||
| viewPaths.add(measurementPath); | ||
| } else { | ||
| nonViewActualPaths.add(measurementPath); | ||
| } | ||
| } | ||
| List<Expression> reconstructTimeSeriesOperands = | ||
| ExpressionUtils.reconstructTimeSeriesOperandsWithMemoryCheck( | ||
| timeSeriesOperand, nonViewActualPaths, context.getQueryContext()); | ||
| // handle logical views | ||
| for (MeasurementPath measurementPath : viewPaths) { | ||
| Expression replacedExpression = transformViewPath(measurementPath, context.getSchemaTree()); | ||
| if (!(replacedExpression instanceof TimeSeriesOperand)) { | ||
| throw new SemanticException( | ||
| "Only writable view timeseries are supported in ALIGN BY DEVICE queries."); | ||
| } | ||
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| replacedExpression.setViewPath(measurementPath); | ||
| reconstructTimeSeriesOperands.add(replacedExpression); | ||
| } | ||
| return reconstructTimeSeriesOperands; | ||
| } | ||
| } |