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https://issues.apache.org/jira/browse/SPARK-22755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16286961#comment-16286961
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Kevin Zhang commented on SPARK-22755:
-------------------------------------
Thanks for reply. In hive and presto the result is supposed to be true.
I tried another time in both spark sql repl and thrift-server, the statement
`select ((946-885)*1.0/946 < 0.1` still returns false, and I used spark 2.2,
which version are you using?
{code:sql}
+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|(CAST((CAST((CAST(CAST((946 - 885) AS DECIMAL(10,0)) AS DECIMAL(11,1)) *
CAST(1.0 AS DECIMAL(11,1))) AS DECIMAL(13,1)) / CAST(CAST(946 AS DECIMAL(13,1))
AS DECIMAL(13,1))) AS DECIMAL(13,1)) < CAST(0.1 AS DECIMAL(13,1)))|
+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|
false|
+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
{code}
> Expression (946-885)*1.0/946 < 0.1 and (946-885)*1.000/946 < 0.1 return
> different results
> -----------------------------------------------------------------------------------------
>
> Key: SPARK-22755
> URL: https://issues.apache.org/jira/browse/SPARK-22755
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Kevin Zhang
>
> both of the following sql statements
> {code:sql}
> select ((946-885)*1.000/946 < 0.1)
> {code}
> and
> {code:sql}
> select ((946-885)*1.0/946 < 0.100)
> {code}
> return true, while the following statement
> {code:sql}
> select ((946-885)*1.0/946 < 0.1)
> {code}
> returns false
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