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Include statement attributes in
EXPLAIN PLAN output (#14074)
This commit adds attributes that contain metadata information about the query in the EXPLAIN PLAN output. The attributes currently contain two items: - `statementTyp`: SELECT, INSERT or REPLACE - `targetDataSource`: provides the target datasource name for DML statements It is added to both the legacy and native query plan outputs.
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73 changes: 73 additions & 0 deletions
73
sql/src/main/java/org/apache/druid/sql/calcite/planner/ExplainAttributes.java
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| /* | ||
| * 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.druid.sql.calcite.planner; | ||
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| import com.fasterxml.jackson.annotation.JsonProperty; | ||
| import org.apache.calcite.sql.SqlNode; | ||
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| import javax.annotation.Nullable; | ||
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| /** | ||
| * ExplainAttributes holds the attributes of a SQL statement that is used in the EXPLAIN PLAN result. | ||
| */ | ||
| public final class ExplainAttributes | ||
| { | ||
| private final String statementType; | ||
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| @Nullable | ||
| private final SqlNode targetDataSource; | ||
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| public ExplainAttributes( | ||
| @JsonProperty("statementType") final String statementType, | ||
| @JsonProperty("targetDataSource") @Nullable final SqlNode targetDataSource) | ||
| { | ||
| this.statementType = statementType; | ||
| this.targetDataSource = targetDataSource; | ||
| } | ||
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| /** | ||
| * @return the statement kind of a SQL statement. For example, SELECT, INSERT, or REPLACE. | ||
| */ | ||
| @JsonProperty | ||
| public String getStatementType() | ||
| { | ||
| return statementType; | ||
| } | ||
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| /** | ||
| * @return the target datasource in a SQL statement. Returns null | ||
| * for SELECT/non-DML statements where there is no target datasource. | ||
| */ | ||
| @Nullable | ||
| @JsonProperty | ||
| public String getTargetDataSource() | ||
| { | ||
| return targetDataSource == null ? null : targetDataSource.toString(); | ||
| } | ||
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| @Override | ||
| public String toString() | ||
| { | ||
| return "ExplainAttributes{" + | ||
| "statementType='" + statementType + '\'' + | ||
| ", targetDataSource=" + targetDataSource + | ||
| '}'; | ||
| } | ||
| } |
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