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https://issues.apache.org/jira/browse/SPARK-26402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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DB Tsai updated SPARK-26402:
----------------------------
Description:
GetStructField with different optional names should be semantically equal. We
will use this as building block to compare the nested fields used in the plans
to be optimized by catalyst optimizer.
This PR also fixes a bug below that accessing nested fields with different
cases in case insensitive mode will result {{AnalysisException}}.
was:GetStructField with different optional names should be semantically
equal. We will use this as building block to compare the nested fields used in
the plans to be optimized by catalyst optimizer.
Summary: Accessing nested fields with different cases in case
insensitive mode (was: Canonicalization on GetStructField)
> Accessing nested fields with different cases in case insensitive mode
> ---------------------------------------------------------------------
>
> Key: SPARK-26402
> URL: https://issues.apache.org/jira/browse/SPARK-26402
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: DB Tsai
> Assignee: DB Tsai
> Priority: Major
>
> GetStructField with different optional names should be semantically equal. We
> will use this as building block to compare the nested fields used in the
> plans to be optimized by catalyst optimizer.
> This PR also fixes a bug below that accessing nested fields with different
> cases in case insensitive mode will result {{AnalysisException}}.
>
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