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Posted to issues@spark.apache.org by "John Zhuge (Jira)" <ji...@apache.org> on 2019/12/04 02:02:00 UTC
[jira] [Commented] (SPARK-30118) ALTER VIEW QUERY does not work
[ https://issues.apache.org/jira/browse/SPARK-30118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16987428#comment-16987428 ]
John Zhuge commented on SPARK-30118:
------------------------------------
{code:java}
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
Type VIEW
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, view.default.database=default]
Location file://tmp/jzhuge/v1
Serde Library org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
InputFormat org.apache.hadoop.mapred.SequenceFileInputFormat
OutputFormat org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
Storage Properties [serialization.format=1]
{code}
> ALTER VIEW QUERY does not work
> ------------------------------
>
> Key: SPARK-30118
> URL: https://issues.apache.org/jira/browse/SPARK-30118
> 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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