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Posted to issues@drill.apache.org by "Daniel Barclay (Drill) (JIRA)" <ji...@apache.org> on 2015/03/15 23:02:38 UTC
[jira] [Commented] (DRILL-2464) JDBC : ResultSet.wasNull always
returns false for all datatypes
[ https://issues.apache.org/jira/browse/DRILL-2464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14362579#comment-14362579 ]
Daniel Barclay (Drill) commented on DRILL-2464:
-----------------------------------------------
> always returns false for all datatypes
Is that the case only for Parquet sources or also for other sources?
Could you try with something like:
- CREATE VIEW Test AS SELECT CAST( NULL AS INTEGER) FROM whatever_table
- SELECT FROM Test
- and then seeing if wasNull() works differently?
> JDBC : ResultSet.wasNull always returns false for all datatypes
> ---------------------------------------------------------------
>
> Key: DRILL-2464
> URL: https://issues.apache.org/jira/browse/DRILL-2464
> Project: Apache Drill
> Issue Type: Bug
> Components: Client - JDBC
> Reporter: Rahul Challapalli
> Assignee: Daniel Barclay (Drill)
> Attachments: fewtypes_null.parquet
>
>
> git.commit.id.abbrev=7b4c887
> I attached a parquet file which has nulls in it.
> {code}
> while (rs.next()) {
> rs.getLong(1);
> if (rs.wasNull()) {
> // DRILL does not come here even when the column value is null
> }
> }
> {code}
> I am not entirely sure if this is a duplicate to DRILL-2136. But here I have seen this happen for all data types.
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