class JdbcRelationProvider extends CreatableRelationProvider with RelationProvider with DataSourceRegister
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- new JdbcRelationProvider()
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def
createRelation(sqlContext: SQLContext, mode: SaveMode, parameters: Map[String, String], df: DataFrame): BaseRelation
Saves a DataFrame to a destination (using data source-specific parameters)
Saves a DataFrame to a destination (using data source-specific parameters)
- sqlContext
SQLContext
- mode
specifies what happens when the destination already exists
- parameters
data source-specific parameters
- returns
Relation with a known schema
- Definition Classes
- JdbcRelationProvider → CreatableRelationProvider
- Since
1.3.0
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def
createRelation(sqlContext: SQLContext, parameters: Map[String, String]): BaseRelation
Returns a new base relation with the given parameters.
Returns a new base relation with the given parameters.
- Definition Classes
- JdbcRelationProvider → RelationProvider
- Note
The parameters' keywords are case insensitive and this insensitivity is enforced by the Map that is passed to the function.
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def
shortName(): String
The string that represents the format that this data source provider uses.
The string that represents the format that this data source provider uses. This is overridden by children to provide a nice alias for the data source. For example:
override def shortName(): String = "parquet"
- Definition Classes
- JdbcRelationProvider → DataSourceRegister
- Since
1.5.0
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