Packages

c

org.apache.spark.sql.delta

SubstringPartitionExpr

case class SubstringPartitionExpr(partitionColumn: String, substringPos: Int, substringLen: Int) extends OptimizablePartitionExpression with Product with Serializable

The rules for the generation expression SUBSTRING(col, pos, len). Note: - Writing an empty string to a partition column would become null (SPARK-24438) so generated partition filters always pick up the null partition for safety. - When pos is 0, we also support optimizations for comparison operators. When pos is not 0, we only support optimizations for EqualTo.

partitionColumn

the partition column name using SUBSTRING in its generation expression.

substringPos

the pos parameter of SUBSTRING in the generation expression.

substringLen

the len parameter of SUBSTRING in the generation expression.

Linear Supertypes
Serializable, Product, Equals, OptimizablePartitionExpression, AnyRef, Any
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Inherited
  1. SubstringPartitionExpr
  2. Serializable
  3. Product
  4. Equals
  5. OptimizablePartitionExpression
  6. AnyRef
  7. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new SubstringPartitionExpr(partitionColumn: String, substringPos: Int, substringLen: Int)

    partitionColumn

    the partition column name using SUBSTRING in its generation expression.

    substringPos

    the pos parameter of SUBSTRING in the generation expression.

    substringLen

    the len parameter of SUBSTRING in the generation expression.

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equalTo(lit: Literal): Option[Expression]

    Assume we have a partition column part, and a data column col.

    Assume we have a partition column part, and a data column col. Return a partition filter based on part for a data filter col = lit.

    Definition Classes
    SubstringPartitionExpr → OptimizablePartitionExpression
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def greaterThan(lit: Literal): Option[Expression]

    Assume we have a partition column part, and a data column col.

    Assume we have a partition column part, and a data column col. Return a partition filter based on part for a data filter col > lit.

    Definition Classes
    SubstringPartitionExpr → OptimizablePartitionExpression
  11. def greaterThanOrEqual(lit: Literal): Option[Expression]

    Assume we have a partition column part, and a data column col.

    Assume we have a partition column part, and a data column col. Return a partition filter based on part for a data filter col >= lit.

    Definition Classes
    SubstringPartitionExpr → OptimizablePartitionExpression
  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. def isNull(): Option[Expression]

    Assume we have a partition column part, and a data column col.

    Assume we have a partition column part, and a data column col. Return a partition filter based on part for a data filter col IS NULL.

    Definition Classes
    SubstringPartitionExpr → OptimizablePartitionExpression
  14. def lessThan(lit: Literal): Option[Expression]

    Assume we have a partition column part, and a data column col.

    Assume we have a partition column part, and a data column col. Return a partition filter based on part for a data filter col < lit.

    Definition Classes
    SubstringPartitionExpr → OptimizablePartitionExpression
  15. def lessThanOrEqual(lit: Literal): Option[Expression]

    Assume we have a partition column part, and a data column col.

    Assume we have a partition column part, and a data column col. Return a partition filter based on part for a data filter col <= lit.

    Definition Classes
    SubstringPartitionExpr → OptimizablePartitionExpression
  16. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  18. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  19. val partitionColumn: String
  20. def productElementNames: Iterator[String]
    Definition Classes
    Product
  21. val substringLen: Int
  22. val substringPos: Int
  23. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  24. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from OptimizablePartitionExpression

Inherited from AnyRef

Inherited from Any

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