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https://issues.apache.org/jira/browse/SPARK-20211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15955239#comment-15955239
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Hyukjin Kwon commented on SPARK-20211:
--------------------------------------
Please refer http://spark.apache.org/contributing.html
{quote}
Critical: a large minority of users are missing important functionality without
this, and/or a workaround is difficult
{quote}
workaround as below:
{code}
scala> sql("select double(1) > double(0.0001)").show()
+--------------------------------------------+
|(CAST(1 AS DOUBLE) > CAST(0.0001 AS DOUBLE))|
+--------------------------------------------+
| true|
+--------------------------------------------+
{code}
Also, it states,
{quote}
Priority. Set to Major or below; higher priorities are generally reserved for
committers to set
{quote}
> `1 > 0.0001` throws Decimal scale (0) cannot be greater than precision (-2)
> exception
> -------------------------------------------------------------------------------------
>
> Key: SPARK-20211
> URL: https://issues.apache.org/jira/browse/SPARK-20211
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1
> Reporter: StanZhai
> Priority: Critical
> Labels: correctness
>
> The following SQL:
> {code}
> select 1 > 0.0001 from tb
> {code}
> throws Decimal scale (0) cannot be greater than precision (-2) exception in
> Spark 2.x.
> `floor(0.0001)` and `ceil(0.0001)` have the same problem in Spark 1.6.x and
> Spark 2.x.
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