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https://issues.apache.org/jira/browse/SPARK-37344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17444225#comment-17444225
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angerszhu edited comment on SPARK-37344 at 11/16/21, 2:51 AM:
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In latest master branch
{code}
== Parsed Logical Plan ==
'Project [unresolvedalias('split('name, \;), None)]
+- 'UnresolvedRelation [split_test], [], false
== Analyzed Logical Plan ==
split(name, \;, -1): array<string>
Project [split(name#225, \;, -1) AS split(name, \;, -1)#226]
+- SubqueryAlias spark_catalog.default.split_test
+- Relation default.split_test[id#224,name#225] parquet
== Optimized Logical Plan ==
Project [split(name#225, \;, -1) AS split(name, \;, -1)#226]
+- Relation default.split_test[id#224,name#225] parquet
== Physical Plan ==
*(1) Project [split(name#225, \;, -1) AS split(name, \;, -1)#226]
+- *(1) ColumnarToRow
+- FileScan parquet default.split_test[name#225] Batched: true, DataFilters:
[], Format: Parquet, Location: InMemoryFileIndex(1
paths)[file:/Users/yi.zhu/Documents/project/Angerszhuuuu/spark/sql/core/spark...,
PartitionFilters: [], PushedFilters: [], ReadSchema: struct<name:string>
{code}
was (Author: angerszhuuu):
Work on this
> split function behave differently between spark 2.3 and spark 3.2
> -----------------------------------------------------------------
>
> Key: SPARK-37344
> URL: https://issues.apache.org/jira/browse/SPARK-37344
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.1.1, 3.1.2, 3.2.0
> Reporter: ocean
> Priority: Major
> Labels: incorrect
>
> while use split function in sql, it behave differently between 2.3 and 3.2,
> which cause incorrect problem.
> we can use this sql to reproduce this problem:
>
> create table split_test ( id int,name string)
> insert into split_test values(1,"abc;def")
> explain extended select split(name,'\\\\;') from split_test
>
> spark3:
> spark-sql> Explain extended select split(name,'\\\\;') from split_test;
> == Parsed Logical Plan ==
> 'Project [unresolvedalias('split('name, \\;), None)]
> +- 'UnresolvedRelation [split_test], [], false
>
> spark2:
>
> spark-sql> Explain extended select split(name,'\\\\;') from split_test;
> == Parsed Logical Plan ==
> 'Project [unresolvedalias('split('name, \;), None)]
> +- 'UnresolvedRelation split_test
>
> It looks like the deal of escape is different
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