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gatorsmile 6a6adb1673 [SPARK-17440][SPARK-17441] Fixed Multiple Bugs in ALTER TABLE 
### What changes were proposed in this pull request?
For the following `ALTER TABLE` DDL, we should issue an exception when the target table is a `VIEW`:
```SQL
 ALTER TABLE viewName SET LOCATION '/path/to/your/lovely/heart'

 ALTER TABLE viewName SET SERDE 'whatever'

 ALTER TABLE viewName SET SERDEPROPERTIES ('x' = 'y')

 ALTER TABLE viewName PARTITION (a=1, b=2) SET SERDEPROPERTIES ('x' = 'y')

 ALTER TABLE viewName ADD IF NOT EXISTS PARTITION (a='4', b='8')

 ALTER TABLE viewName DROP IF EXISTS PARTITION (a='2')

 ALTER TABLE viewName RECOVER PARTITIONS

 ALTER TABLE viewName PARTITION (a='1', b='q') RENAME TO PARTITION (a='100', b='p')
```

In addition, `ALTER TABLE RENAME PARTITION` is unable to handle data source tables, just like the other `ALTER PARTITION` commands. We should issue an exception instead.

### How was this patch tested?
Added a few test cases.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15004 from gatorsmile/altertable.
2016-09-15 14:43:10 +08:00
..
catalyst [SPARK-10747][SQL] Support NULLS FIRST|LAST clause in ORDER BY 2016-09-14 21:14:29 +02:00
core [SPARK-17440][SPARK-17441] Fixed Multiple Bugs in ALTER TABLE 2016-09-15 14:43:10 +08:00
hive [SPARK-17440][SPARK-17441] Fixed Multiple Bugs in ALTER TABLE 2016-09-15 14:43:10 +08:00
hive-thriftserver [SPARK-17190][SQL] Removal of HiveSharedState 2016-08-25 12:50:03 +08:00
README.md [SPARK-16557][SQL] Remove stale doc in sql/README.md 2016-07-14 19:24:42 -07:00

README.md

Spark SQL

This module provides support for executing relational queries expressed in either SQL or the DataFrame/Dataset API.

Spark SQL is broken up into four subprojects:

  • Catalyst (sql/catalyst) - An implementation-agnostic framework for manipulating trees of relational operators and expressions.
  • Execution (sql/core) - A query planner / execution engine for translating Catalyst's logical query plans into Spark RDDs. This component also includes a new public interface, SQLContext, that allows users to execute SQL or LINQ statements against existing RDDs and Parquet files.
  • Hive Support (sql/hive) - Includes an extension of SQLContext called HiveContext that allows users to write queries using a subset of HiveQL and access data from a Hive Metastore using Hive SerDes. There are also wrappers that allows users to run queries that include Hive UDFs, UDAFs, and UDTFs.
  • HiveServer and CLI support (sql/hive-thriftserver) - Includes support for the SQL CLI (bin/spark-sql) and a HiveServer2 (for JDBC/ODBC) compatible server.