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BaseTableRef.java
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BaseTableRef.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.
package com.starrocks.analysis;
import com.starrocks.catalog.Table;
import com.starrocks.common.AnalysisException;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
/**
* An actual table, such as OLAP table or a MySQL table.
* BaseTableRef.
*/
public class BaseTableRef extends TableRef {
private Table table;
public BaseTableRef(TableRef ref, Table table, TableName tableName) {
super(ref);
this.table = table;
this.name = tableName;
// Set implicit aliases if no explicit one was given.
if (hasExplicitAlias()) {
return;
}
aliases_ = new String[] {name.toString(), tableName.getNoClusterString(), table.getName()};
}
protected BaseTableRef(BaseTableRef other) {
super(other);
name = other.name;
table = other.table;
}
@Override
public TableRef clone() {
return new BaseTableRef(this);
}
@Override
public TupleDescriptor createTupleDescriptor(Analyzer analyzer) {
TupleDescriptor result = analyzer.getDescTbl().createTupleDescriptor();
result.setTable(table);
return result;
}
/**
* Register this table ref and then analyze the Join clause.
*/
@Override
public void analyze(Analyzer analyzer) throws AnalysisException {
name = analyzer.getFqTableName(name);
name.analyze(analyzer);
desc = analyzer.registerTableRef(this);
isAnalyzed = true; // true that we have assigned desc
}
}