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From "Apache Spark (JIRA)" <>
Subject [jira] [Commented] (SPARK-25123) SimpleExprValue may cause the loss of a reference
Date Wed, 15 Aug 2018 09:11:00 GMT


Apache Spark commented on SPARK-25123:

User 'mgaido91' has created a pull request for this issue:

> SimpleExprValue may cause the loss of a reference
> -------------------------------------------------
>                 Key: SPARK-25123
>                 URL:
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Marco Gaido
>            Priority: Major
> While introducing the new JavaCode abstraction in order to enable tracking references
and allowing transformations, we added 3 types of expression values. They are global variables,
local variables and simple expressions.
> While checking whether we could use this new abstraction for fixing an issue reported
in another JIRA, I just realized that SimpleExprValue contains a string with the generated
code, but this can actually contain other variables. Since the value is carried in SimpleExprValue
is a string, though, we were loosing track of the variable reference.
> So this JIRA is for using a Block in order to represent the java code carried by SimpleExprValue,
so that we don't loose references.

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