Package io.delta.kernel.expressions

package io.delta.kernel.expressions

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

Related Packages

Package	Description
io.delta.kernel	Delta Kernel interfaces for constructing table object representing a Delta Lake table, getting snapshot from the table and building a scan object to scan a subset of the data in the table.

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.
Expression	Base interface for all Kernel expressions.
ExpressionEvaluator	Interface for implementing an Expression evaluator.
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.
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.
ScalarExpression	Scalar SQL expressions which take zero or more inputs and for each input row generate one output value.