Interface SupportsDelta

All Superinterfaces:

@Experimental public interface SupportsDelta extends RowLevelOperation
A mix-in interface for RowLevelOperation. Data sources can implement this interface to indicate they support handling deltas of rows.
  • Method Details

    • newWriteBuilder

      DeltaWriteBuilder newWriteBuilder(LogicalWriteInfo info)
      Description copied from interface: RowLevelOperation
      Returns a WriteBuilder to configure a Write for this row-level operation.

      Note that Spark will first configure the scan and then the write, allowing data sources to pass information from the scan to the write. For example, the scan can report which condition was used to read the data that may be needed by the write under certain isolation levels. Implementations may capture the built scan or required scan information and then use it while building the write.

      Specified by:
      newWriteBuilder in interface RowLevelOperation
    • rowId

      NamedReference[] rowId()
      Returns the row ID column references that should be used for row equality.
    • representUpdateAsDeleteAndInsert

      default boolean representUpdateAsDeleteAndInsert()
      Controls whether to represent updates as deletes and inserts.

      Data sources may choose to split updates into deletes and inserts to either better cluster and order the incoming delta of rows or to simplify the write process.