[
https://issues.apache.org/jira/browse/SPARK-15205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kousuke Saruta updated SPARK-15205:
-----------------------------------
Description:
Sometimes, we have generated codes they are equal except for comments.
One example is here.
{code}
val df = sc.parallelize(1 to 10).toDF
df.selectExpr("value + 1").show // query1
df.selectExpr("value + 2").show // query2
{code}
The following code is one of generated code when query1 above is executed.
{code}
{code}
On the other hand, the following code is for query2.
{code}
{code}
As you can notice, those two generated codes are equal but
was:
Sometimes, we have generated codes they are equal except for comments.
One example is here.
{code}
val df = sc.parallelize(1 to 10).toDF
df.selectExpr("value + 1").show // query1
df.selectExpr("value + 2").show // query2
{code}
> Codegen can compile more than twice for the same source code
> ------------------------------------------------------------
>
> Key: SPARK-15205
> URL: https://issues.apache.org/jira/browse/SPARK-15205
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Kousuke Saruta
>
> Sometimes, we have generated codes they are equal except for comments.
> One example is here.
> {code}
> val df = sc.parallelize(1 to 10).toDF
> df.selectExpr("value + 1").show // query1
> df.selectExpr("value + 2").show // query2
> {code}
> The following code is one of generated code when query1 above is executed.
> {code}
> {code}
> On the other hand, the following code is for query2.
> {code}
> {code}
> As you can notice, those two generated codes are equal but
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
