任宇华 created IOTDB-5487:
--------------------------
Summary: Fix the problem that the timestamp is "null" when using
jdbc
Key: IOTDB-5487
URL: https://issues.apache.org/jira/browse/IOTDB-5487
Project: Apache IoTDB
Issue Type: New Feature
Components: Client/JDBC
Reporter: 任宇华
Attachments: image-2023-02-07-15-02-01-340.png
代码：
while (resultSet.next()) {
for (int i = 1; i <= columnCount; i++) {
int ct = metaData.getColumnType(i);
if (ct == Types.TIMESTAMP) {
Timestamp rValue = resultSet.getTimestamp(i);
if (resultSet.wasNull()) {
System.out.println(i + "is null");
} else {
System.out.println(i + "value:" + rValue.toString());
}
} else {
String rValue = resultSet.getString(i);
if (resultSet.wasNull()) {
System.out.println(i + "is null");
} else {
System.out.println(i + "value:" + rValue);
}
}
}
}
!image-2023-02-07-15-02-01-340.png!
Because the last value is null, the lastReadWasNull field is true. An error
occurred when using wasNull method to judge.
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