Projection Functions¶

Projection is an abstraction of InternalRow converter functions to produce an InternalRow for a given InternalRow.

Projection: InternalRow => InternalRow

Contract¶

Initialization¶

initialize(
  partitionIndex: Int): Unit

Implementations¶

• IdentityProjection
• InterpretedProjection
• InterpretedSafeProjection
• MutableProjection
• UnsafeProjection