[
https://issues.apache.org/jira/browse/SPARK-35265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17337571#comment-17337571
]
Saurabh Chawla edited comment on SPARK-35265 at 4/30/21, 6:44 PM:
------------------------------------------------------------------
This is not the bug check this scenario
{code:java}
scala> val k = -2147483648
k: Int = -2147483648
scala> Math.abs(k)
res32: Int = -2147483648
{code}
The reason the max value of the int is 2147483647 but where as abs of
-2147483648 will give the value 2147483648 which surpassed the value
2147483647 and is considered out of range.
Try Long instead of int
{code:java}
scala> val k = -2147483648L
k: Long = -2147483648
scala> Math.abs(k)
res33: Long = 2147483648
{code}
try this
{code:java}
df = df.withColumn("test", lit(-2147483648L))
df =df.withColumn("test1", abs(col("test")))
{code}
was (Author: saurabhc100):
This is not the bug check this scenario
{code:java}
scala> val k = -2147483648
k: Int = -2147483648
scala> Math.abs(k)
res32: Int = -2147483648
{code}
The reason the max value of the int is 2147483647 but where as abs of
-2147483648 will give the value 2147483648 which surpassed the value
2147483647 and is considered out of range.
Try Long instead of int
{code:java}
scala> val k = -2147483648L
k: Long = -2147483648
scala> Math.abs(k)
res33: Long = 2147483648
{code}
try this
{code:java}
df = df.withColumn("test", lit(-2147483648L))
df =df.withColumn("test1", abs(col("test")))
{code}
> abs return negative
> -------------------
>
> Key: SPARK-35265
> URL: https://issues.apache.org/jira/browse/SPARK-35265
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 3.0.1, 3.1.1
> Reporter: liuzhenjie
> Priority: Major
>
> from pyspark.sql.functions import lit, abs, concat, hash,col
> df = df.withColumn('partition_id', lit(-2147483648))
> df = df.withColumn('abs_id', abs(col('partition_id')))
> df.select('abs_id','partition_id').show()
>
> when the number is -2147483648，method abs return negative
> +-----------+------------+
> | abs_id |partition_id |
> +-----------+------------+
> |-2147483648| -2147483648|
> |-2147483648| -2147483648|
> |-2147483648| -2147483648|
> |-2147483648| -2147483648|
> |-2147483648| -2147483648|
> +-----------+------------+
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
