Dongjoon Hyun 7ac79da0e4 [SPARK-16459][SQL] Prevent dropping current database ... ## What changes were proposed in this pull request? This PR prevents dropping the current database to avoid errors like the followings. ```scala scala> sql("create database delete_db") scala> sql("use delete_db") scala> sql("drop database delete_db") scala> sql("create table t as select 1") org.apache.spark.sql.catalyst.analysis.NoSuchDatabaseException: Database `delete_db` not found; ``` ## How was this patch tested? Pass the Jenkins tests including an updated testcase. Author: Dongjoon Hyun <dongjoon@apache.org> Closes #14115 from dongjoon-hyun/SPARK-16459.		2016-07-11 15:15:47 +02:00
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main	[SPARK-16401][SQL] Data Source API: Enable Extending RelationProvider and CreatableRelationProvider without Extending SchemaRelationProvider	2016-07-09 20:35:45 +08:00
test	[SPARK-16459][SQL] Prevent dropping current database	2016-07-11 15:15:47 +02:00