expressions

Type Members

1. case class AddPrefix(left: Expression, right: Expression) extends BinaryExpression with NullIntolerant with ExpectsInputTypes with Product with Serializable

   

   Spark expression that adds a byte prefix to an array of bytes.

   Spark expression that adds a byte prefix to an array of bytes.

   left

   expression of ByteType that is added as a prefix

   right

   expression of BinaryType to which a prefix is added

2. case class EncodeLong(child: Expression) extends UnaryExpression with NullIntolerant with ExpectsInputTypes with Product with Serializable

   

   Spark expression that encodes a long into a byte array using variable-length encoding.

   Spark expression that encodes a long into a byte array using variable-length encoding.

   child

   expression of type LongType that is encoded by this expression

3. case class Serialize(children: Seq[Expression]) extends Expression with Product with Serializable

   

   Encodes all children to a byte array (BinaryType).

   Encodes all children to a byte array (BinaryType).

   For each child, writes the length of the serialized child followed by the actual serialized child.