/**
* 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.drill.exec.planner.sql.parser;
import java.util.List;
import net.hydromatic.optiq.tools.Planner;
import org.apache.drill.exec.ops.QueryContext;
import org.apache.drill.exec.planner.sql.handlers.AbstractSqlHandler;
import org.apache.drill.exec.planner.sql.handlers.CreateTableHandler;
import org.apache.drill.exec.planner.sql.handlers.SqlHandlerConfig;
import org.eigenbase.relopt.hep.HepPlanner;
import org.eigenbase.sql.SqlCall;
import org.eigenbase.sql.SqlIdentifier;
import org.eigenbase.sql.SqlKind;
import org.eigenbase.sql.SqlLiteral;
import org.eigenbase.sql.SqlNode;
import org.eigenbase.sql.SqlNodeList;
import org.eigenbase.sql.SqlOperator;
import org.eigenbase.sql.SqlSpecialOperator;
import org.eigenbase.sql.SqlWriter;
import org.eigenbase.sql.parser.SqlParserPos;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
public class SqlCreateTable extends DrillSqlCall {
public static final SqlSpecialOperator OPERATOR = new SqlSpecialOperator("CREATE_TABLE", SqlKind.OTHER) {
@Override
public SqlCall createCall(SqlLiteral functionQualifier, SqlParserPos pos, SqlNode... operands) {
return new SqlCreateTable(pos, (SqlIdentifier) operands[0], (SqlNodeList) operands[1], operands[2]);
}
};
private SqlIdentifier tblName;
private SqlNodeList fieldList;
private SqlNode query;
public SqlCreateTable(SqlParserPos pos, SqlIdentifier tblName, SqlNodeList fieldList, SqlNode query) {
super(pos);
this.tblName = tblName;
this.fieldList = fieldList;
this.query = query;
}
@Override
public SqlOperator getOperator() {
return OPERATOR;
}
@Override
public List<SqlNode> getOperandList() {
List<SqlNode> ops = Lists.newArrayList();
ops.add(tblName);
ops.add(fieldList);
ops.add(query);
return ops;
}
@Override
public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
writer.keyword("CREATE");
writer.keyword("TABLE");
tblName.unparse(writer, leftPrec, rightPrec);
if (fieldList != null && fieldList.size() > 0) {
writer.keyword("(");
fieldList.get(0).unparse(writer, leftPrec, rightPrec);
for (int i=1; i<fieldList.size(); i++) {
writer.keyword(",");
fieldList.get(i).unparse(writer, leftPrec, rightPrec);
}
writer.keyword(")");
}
writer.keyword("AS");
query.unparse(writer, leftPrec, rightPrec);
}
@Override
public AbstractSqlHandler getSqlHandler(SqlHandlerConfig config) {
return new CreateTableHandler(config);
}
public List<String> getSchemaPath() {
if (tblName.isSimple()) {
return ImmutableList.of();
}
return tblName.names.subList(0, tblName.names.size() - 1);
}
public String getName() {
if (tblName.isSimple()) {
return tblName.getSimple();
}
return tblName.names.get(tblName.names.size() - 1);
}
public List<String> getFieldNames() {
if (fieldList == null) {
return ImmutableList.of();
}
List<String> columnNames = Lists.newArrayList();
for(SqlNode node : fieldList.getList()) {
columnNames.add(node.toString());
}
return columnNames;
}
public SqlNode getQuery() { return query; }
}