is case sensitive
[ https://issues.apache.org/jira/browse/SPARK-29505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Takeshi Yamamuro resolved SPARK-29505.
--------------------------------------
Fix Version/s: 3.0.0
Assignee: pavithra ramachandran
Resolution: Fixed
Resolved by [https://github.com/apache/spark/pull/26927|https://github.com/apache/spark/pull/26927#issuecomment-568774416]
> desc extended <table name> <column name> is case sensitive
> ----------------------------------------------------------
>
> Key: SPARK-29505
> URL: https://issues.apache.org/jira/browse/SPARK-29505
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: ABHISHEK KUMAR GUPTA
> Assignee: pavithra ramachandran
> Priority: Major
> Fix For: 3.0.0
>
>
> {code}
> create table customer(id int, name String, *CName String*, address String, city String, pin int, country String);
> insert into customer values(1,'Alfred','Maria','Obere Str 57','Berlin',12209,'Germany');
> insert into customer values(2,'Ana','trujilo','Adva de la','Maxico D.F.',05021,'Maxico');
> insert into customer values(3,'Antonio','Antonio Moreno','Mataderos 2312','Maxico D.F.',05023,'Maxico');
> analyze table customer compute statistics for columns cname; – *Success( Though cname is not as CName)*
> desc extended customer cname; – Failed
> jdbc:hive2://10.18.19.208:23040/default> desc extended customer *cname;*
> +-----------------+-------------+
> | info_name | info_value |
> +-----------------+-------------+
> | col_name | cname |
> | data_type | string |
> | comment | NULL |
> | min | NULL |
> | max | NULL |
> | num_nulls | NULL |
> | distinct_count | NULL |
> | avg_col_len | NULL |
> | max_col_len | NULL |
> | histogram | NULL |
> +-----------------+----------
> {code}
>
> But
> {code}
> desc extended customer CName; – SUCCESS
> 0: jdbc:hive2://10.18.19.208:23040/default> desc extended customer *CName;*
> +-----------------+-------------+
> | info_name | info_value |
> +-----------------+-------------+
> | col_name | CName |
> | data_type | string |
> | comment | NULL |
> | min | NULL |
> | max | NULL |
> | num_nulls | 0 |
> | distinct_count | 3 |
> | avg_col_len | 9 |
> | max_col_len | 14 |
> | histogram | NULL |
> +-----------------+-------------+
> {code}
>
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