Package io.delta.kernel.expressions

Expressions framework that defines the most common expressions which the connectors can use to pass predicates to Delta Kernel.

See: Description

Interface Summary

Interface	Description
Expression	Base interface for all Kernel expressions.
ExpressionEvaluator	Interface for implementing an Expression evaluator.
PredicateEvaluator	Special interface for evaluating Predicate on input batch and return a selection vector containing one value for each row in input batch indicating whether the row has passed the predicate or not.

Class Summary

Class	Description
AlwaysFalse	Predicate which always evaluates to false.
AlwaysTrue	Predicate which always evaluates to true.
And	AND expression
Column	An expression type that refers to a column (case-sensitive) in the input.
Literal	A literal value.
Or	OR expression
PartitionValueExpression	Expression to decode the serialized partition value into partition type value according the Delta Protocol spec.
Predicate	Defines predicate scalar expression which is an extension of ScalarExpression that evaluates to true, false, or null for each input row.
ScalarExpression	Scalar SQL expressions which take zero or more inputs and for each input row generate one output value.

Package io.delta.kernel.expressions Description

Expressions framework that defines the most common expressions which the connectors can use to pass predicates to Delta Kernel.