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CreatableRelationProvider

CreatableRelationProvider is an abstraction of data source providers that can save data and create a BaseRelation.

Contract

createRelation

createRelation(
  sqlContext: SQLContext,
  mode: SaveMode,
  parameters: Map[String, String],
  data: DataFrame): BaseRelation

Saves the given DataFrame to this data source (and creates a BaseRelation to represent the relation)

The SaveMode specifies what should happen when the target relation (destination) already exists.

Used when:

  • DataSource is requested to writeAndRead
  • SaveIntoDataSourceCommand logical command is requested to run

Implementations

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