Packages

sealed trait OptimizablePartitionExpression extends AnyRef

Defines rules to convert a data filter to a partition filter for a special generation expression of a partition column.

Note: - This may be shared cross multiple SparkSessions, implementations should not store any state (such as expressions) referring to a specific SparkSession. - Partition columns may have different behaviors than data columns. For example, writing an empty string to a partition column would become null (SPARK-24438). We need to pay attention to these slight behavior differences and make sure applying the auto generated partition filters would still return the same result as if they were not applied.

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Known Subclasses
DateFormatPartitionExpr, DatePartitionExpr, DayPartitionExpr, HourPartitionExpr, IdentityPartitionExpr, MonthPartitionExpr, SubstringPartitionExpr, TimestampTruncPartitionExpr, TruncDatePartitionExpr, YearMonthDayHourPartitionExpr, YearMonthDayPartitionExpr, YearMonthPartitionExpr, YearPartitionExpr
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Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
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  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.

  8. def equals(arg0: AnyRef): Boolean
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  9. def finalize(): Unit
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  10. final def getClass(): Class[_ <: AnyRef]
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    @native()
  11. 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.

  12. 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.

  13. def hashCode(): Int
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    @native()
  14. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  15. 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.

  16. 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.

  17. 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.

  18. final def ne(arg0: AnyRef): Boolean
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  19. final def notify(): Unit
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  20. final def notifyAll(): Unit
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  21. final def synchronized[T0](arg0: => T0): T0
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  22. def toString(): String
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  23. final def wait(): Unit
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  24. final def wait(arg0: Long, arg1: Int): Unit
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  25. final def wait(arg0: Long): Unit
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