Package org.apache.spark.sql.connector.expressions.filter

Class Predicate

Object

org.apache.spark.sql.internal.connector.ExpressionWithToString

org.apache.spark.sql.connector.expressions.GeneralScalarExpression

org.apache.spark.sql.connector.expressions.filter.Predicate

All Implemented Interfaces:

Serializable, Expression

Direct Known Subclasses:

AlwaysFalse, AlwaysTrue, And, Not, Or

@Evolving
public class Predicate
extends GeneralScalarExpression

The general representation of predicate expressions, which contains the upper-cased expression name and all the children expressions. You can also use these concrete subclasses for better type safety: And, Or, Not, AlwaysTrue, AlwaysFalse.

The currently supported predicate expressions:

1. Name: IS_NULL
   • SQL semantic: expr IS NULL
   • Since version: 3.3.0
2. Name: IS_NOT_NULL
   • SQL semantic: expr IS NOT NULL
   • Since version: 3.3.0
3. Name: STARTS_WITH
   • SQL semantic: expr1 LIKE 'expr2%'
   • Since version: 3.3.0
4. Name: ENDS_WITH
   • SQL semantic: expr1 LIKE '%expr2'
   • Since version: 3.3.0
5. Name: CONTAINS
   • SQL semantic: expr1 LIKE '%expr2%'
   • Since version: 3.3.0
6. Name: IN
   • SQL semantic: expr IN (expr1, expr2, ...)
   • Since version: 3.3.0
7. Name: =
   • SQL semantic: expr1 = expr2
   • Since version: 3.3.0
8. Name: <>
   • SQL semantic: expr1 <> expr2
   • Since version: 3.3.0
9. Name: <=>
   • SQL semantic: null-safe version of expr1 = expr2
   • Since version: 3.3.0
10. Name: <
    • SQL semantic: expr1 < expr2
    • Since version: 3.3.0
11. Name: <=
    • SQL semantic: expr1 <= expr2
    • Since version: 3.3.0
12. Name: >
    • SQL semantic: expr1 > expr2
    • Since version: 3.3.0
13. Name: >=
    • SQL semantic: expr1 >= expr2
    • Since version: 3.3.0
14. Name: AND
    • SQL semantic: expr1 AND expr2
    • Since version: 3.3.0
15. Name: OR
    • SQL semantic: expr1 OR expr2
    • Since version: 3.3.0
16. Name: NOT
    • SQL semantic: NOT expr
    • Since version: 3.3.0
17. Name: ALWAYS_TRUE
    • SQL semantic: TRUE
    • Since version: 3.3.0
18. Name: ALWAYS_FALSE
    • SQL semantic: FALSE
    • Since version: 3.3.0
19. Name: BOOLEAN_EXPRESSION
    • A simple wrapper for any expression that returns boolean type.
    • Since version: 4.1.0

Since:

3.3.0

See Also:

• Serialized Form

Field Summary

Fields inherited from interface org.apache.spark.sql.connector.expressions.Expression

EMPTY_EXPRESSION, EMPTY_NAMED_REFERENCE

Constructor Summary

Constructors

Constructor	Description
Predicate(String name, Expression[] children)

Method Summary

Methods inherited from class org.apache.spark.sql.connector.expressions.GeneralScalarExpression

children, equals, hashCode, name

Methods inherited from class org.apache.spark.sql.internal.connector.ExpressionWithToString

describe, references, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Predicate

public Predicate(String name,
 Expression[] children)