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HashExpression

HashExpression[E] is an extension of the Expression abstraction for hashing expressions that calculate hash value (for a group of expressions).

Contract

Computing Hash

computeHash(
  value: Any,
  dataType: DataType,
  seed: E): E

Used when:

hasherClassName

hasherClassName: String

Used when:

Seed

seed: E

Used when:

Implementations

eval

eval(
  input: InternalRow): Any

eval...FIXME

eval is part of the Expression abstraction.

doGenCode

doGenCode(
  ctx: CodegenContext,
  ev: ExprCode): ExprCode

doGenCode...FIXME

doGenCode is part of the Expression abstraction.

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