[ https://issues.apache.org/jira/browse/IOTDB-5487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
任宇华 reassigned IOTDB-5487: -------------------------- Assignee: 任宇华 > 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 > Assignee: 任宇华 > Priority: Major > 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. -- This message was sent by Atlassian Jira (v8.20.10#820010)