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https://issues.apache.org/jira/browse/IOTDB-912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17202751#comment-17202751
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Jack Tsai commented on IOTDB-912:
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After reading the code in AbstractIoTDBJDBCResultSet, I think wasNull() in
AbstractIoTDBJDBCResultSet will always return false. While we get null value in
iotdbRPCDataSet, it will throw StatementExecutionException due to the isNull()
check. IMO wasNull() doesn't seem to make too much sense here.
> implement wasNull method in AbstractIoTDBJDBCResultSet
> ------------------------------------------------------
>
> Key: IOTDB-912
> URL: https://issues.apache.org/jira/browse/IOTDB-912
> Project: Apache IoTDB
> Issue Type: Task
> Components: JDBC
> Reporter: Xiangdong Huang
> Priority: Major
> Labels: easy-fix
>
> wasNull() method is a standard interface in ResultSet of JDBC.
> However, current IoTDB's JDBC does not implement it.
> You can get more information from the method's javadoc or search "Java
> ResultSet.wasNull example" to understand the behavior of the method, and then
> implement it.
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