class MapRDBDataSource extends DataSourceRegister with TableProvider with LoggingTrait
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- new MapRDBDataSource()
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def
getTable(schema: StructType, partitioning: Array[Transform], properties: Map[String, String]): org.apache.spark.sql.connector.catalog.Table
Return a
Tableinstance with the specified table schema, partitioning and properties to do read/write.Return a
Tableinstance with the specified table schema, partitioning and properties to do read/write. The returned table should report the same schema and partitioning with the specified ones, or Spark may fail the operation.- schema
The specified table schema.
- partitioning
The specified table partitioning.
- properties
The specified table properties. It's case preserving (contains exactly what users specified) and implementations are free to use it case sensitively or insensitively. It should be able to identify a table, e.g. file path, Kafka topic name, etc.
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- MapRDBDataSource → TableProvider
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hashCode(): Int
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def
inferPartitioning(arg0: CaseInsensitiveStringMap): Array[Transform]
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def
inferSchema(options: CaseInsensitiveStringMap): StructType
Infer the schema of the table identified by the given options.
Infer the schema of the table identified by the given options.
- options
an immutable case-insensitive string-to-string map that can identify a table, e.g. file path, Kafka topic name, etc.
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log: Logger
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logDebug(msg: ⇒ String, throwable: Throwable): Unit
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logInfo(msg: ⇒ String, throwable: Throwable): Unit
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logInfo(msg: ⇒ String): Unit
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logName: String
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logTrace(msg: ⇒ String, throwable: Throwable): Unit
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logWarning(msg: ⇒ String, throwable: Throwable): Unit
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logWarning(msg: ⇒ String): Unit
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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"
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- MapRDBDataSource → DataSourceRegister
- Since
1.5.0
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def
supportsExternalMetadata(): Boolean
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- MapRDBDataSource → TableProvider
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