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https://issues.apache.org/jira/browse/SPARK-36229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated SPARK-36229:
----------------------------------
Affects Version/s: (was: 3.1.2)
3.2.0
> conv() inconsistently handles invalid strings with > 64 invalid characters
> --------------------------------------------------------------------------
>
> Key: SPARK-36229
> URL: https://issues.apache.org/jira/browse/SPARK-36229
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.2.0
> Environment: SPARK-33428 fixed ArrayIndexOutofBoundsException but
> introduced a new inconsistency in behaviour where the returned value is
> different above the 64 char threshold.
>
> {noformat}
> scala> spark.sql("select conv(repeat('?', 64), 10, 16)").show
> +---------------------------+
> |conv(repeat(?, 64), 10, 16)|
> +---------------------------+
> | 0|
> +---------------------------+
> scala> spark.sql("select conv(repeat('?', 65), 10, 16)").show
> +---------------------------+
> |conv(repeat(?, 65), 10, 16)|
> +---------------------------+
> | FFFFFFFFFFFFFFFF|
> +---------------------------+
> scala> spark.sql("select conv(repeat('?', 65), 10, -16)").show
> +----------------------------+
> |conv(repeat(?, 65), 10, -16)|
> +----------------------------+
> | -1|
> +----------------------------+
> scala> spark.sql("select conv(repeat('?', 64), 10, -16)").show
> +----------------------------+
> |conv(repeat(?, 64), 10, -16)|
> +----------------------------+
> | 0|
> +----------------------------+{noformat}
> Reporter: Tim Armstrong
> Priority: Major
>
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