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From "John Zhuge (Jira)" <>
Subject [jira] [Commented] (SPARK-30118) ALTER VIEW QUERY does not work
Date Wed, 04 Dec 2019 02:02:00 GMT


John Zhuge commented on SPARK-30118:

spark-sql> DESC FORMATTED jzhuge.v1;
foo1	string	NULL

# Detailed Table Information
Database	jzhuge
Table	v1
Owner	jzhuge
Created Time	Tue Dec 03 17:53:59 PST 2019
Last Access	UNKNOWN
Created By	Spark 3.0.0-SNAPSHOT
View Text	SELECT 'foo' foo1
View Original Text	SELECT 'foo' foo1
View Default Database	default
View Query Output Columns	[foo2]
Table Properties	[transient_lastDdlTime=1575424439, view.query.out.col.0=foo2, view.query.out.numCols=1,
Location	file://tmp/jzhuge/v1
Serde Library	org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
InputFormat	org.apache.hadoop.mapred.SequenceFileInputFormat
Storage Properties	[serialization.format=1]

> ALTER VIEW QUERY does not work
> ------------------------------
>                 Key: SPARK-30118
>                 URL:
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: John Zhuge
>            Priority: Major
> `ALTER VIEW AS` does not change view query. It leaves the view in a corrupted state.
> {code:sql}
> spark-sql> CREATE VIEW jzhuge.v1 AS SELECT 'foo' foo1;
> spark-sql> SHOW CREATE TABLE jzhuge.v1;
> CREATE VIEW `jzhuge`.`v1`(foo1) AS
> SELECT 'foo' foo1
> spark-sql> ALTER VIEW jzhuge.v1 AS SELECT 'foo' foo2;
> spark-sql> SHOW CREATE TABLE jzhuge.v1;
> CREATE VIEW `jzhuge`.`v1`(foo1) AS
> SELECT 'foo' foo1
> spark-sql> TABLE jzhuge.v1;
> Error in query: Attribute with name 'foo2' is not found in '(foo1)';;
> SubqueryAlias `jzhuge`.`v1`
> +- View (`jzhuge`.`v1`, [foo1#33])
>    +- Project [foo AS foo1#34]
>       +- OneRowRelation
> {code}

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