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Posted to issues@spark.apache.org by "Mark Jarvin (Jira)" <ji...@apache.org> on 2023/11/18 00:30:00 UTC
[jira] [Commented] (SPARK-42399) CONV() silently overflows returning wrong results
[ https://issues.apache.org/jira/browse/SPARK-42399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17787433#comment-17787433 ]
Mark Jarvin commented on SPARK-42399:
-------------------------------------
This seems like it's stalled and/or is a duplicate of https://issues.apache.org/jira/browse/SPARK-42427
> CONV() silently overflows returning wrong results
> -------------------------------------------------
>
> Key: SPARK-42399
> URL: https://issues.apache.org/jira/browse/SPARK-42399
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: Serge Rielau
> Priority: Critical
>
> spark-sql> SELECT CONV(SUBSTRING('0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 3), 16, 10);
> 18446744073709551615
> Time taken: 2.114 seconds, Fetched 1 row(s)
> spark-sql> set spark.sql.ansi.enabled = true;
> spark.sql.ansi.enabled true
> Time taken: 0.068 seconds, Fetched 1 row(s)
> spark-sql> SELECT CONV(SUBSTRING('0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 3), 16, 10);
> 18446744073709551615
> Time taken: 0.05 seconds, Fetched 1 row(s)
> In ANSI mode we should raise an error for sure.
> In non ANSI either an error or a NULL maybe be acceptable.
> Alternatively, of course, we could consider if we can support arbitrary domains since the result is a STRING again.
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