jt2594838 commented on a change in pull request #738: [IOTDB-396] New query 
clause: disable align
URL: https://github.com/apache/incubator-iotdb/pull/738#discussion_r366227391
 
 

 ##########
 File path: 
jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBNonAlignQueryResultSet.java
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 @@ -0,0 +1,1289 @@
+/*
+ * 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.iotdb.jdbc;
+
+import org.apache.iotdb.rpc.IoTDBRPCException;
+import org.apache.iotdb.rpc.RpcUtils;
+import org.apache.iotdb.service.rpc.thrift.*;
+import org.apache.iotdb.tsfile.exception.write.UnSupportedDataTypeException;
+import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
+import org.apache.iotdb.tsfile.utils.BytesUtils;
+import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
+import org.apache.thrift.TException;
+
+import java.io.InputStream;
+import java.io.Reader;
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.net.URL;
+import java.nio.ByteBuffer;
+import java.sql.Date;
+import java.sql.*;
+import java.util.*;
+
+public class IoTDBNonAlignQueryResultSet implements ResultSet {
+
+  private static final String TIMESTAMP_STR = "Time";
+  private static final int TIMESTAMP_STR_LENGTH = 4;
+  private static final int START_INDEX = 2;
+  private static final String VALUE_IS_NULL = "The value got by %s (column 
name) is NULL.";
+  private static final String EMPTY_STR = "";
+  private Statement statement = null;
+  private String sql;
+  private SQLWarning warningChain = null;
+  private boolean isClosed = false;
+  private TSIService.Iface client = null;
+  private List<String> columnInfoList; // no deduplication
+  private List<String> columnTypeList; // no deduplication
+  private Map<String, Integer> columnInfoMap; // used because the server 
returns deduplicated columns
 
 Review comment:
   It would be more clear to call it "columnBufferPositionMap" or 
"columnOrdinalMap" or something else.

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