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org.apache.spark.sql.execution.joins

HashedRelationWithAllNullKeys

case object HashedRelationWithAllNullKeys extends HashedRelation with Product with Serializable

A special HashedRelation indicating that it's built from a non-empty input:Iterator[InternalRow] with all the keys to be null.

Linear Supertypes
Serializable, Product, Equals, HashedRelation, KnownSizeEstimation, AnyRef, Any
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Inherited
  1. HashedRelationWithAllNullKeys
  2. Serializable
  3. Product
  4. Equals
  5. HashedRelation
  6. KnownSizeEstimation
  7. AnyRef
  8. Any
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Visibility
  1. Public
  2. Protected

Value Members

  1. def asReadOnlyCopy(): HashedRelationWithAllNullKeys.type

    Returns a read-only copy of this, to be safely used in current thread.

    Returns a read-only copy of this, to be safely used in current thread.

    Definition Classes
    HashedRelationWithAllNullKeys → HashedRelation
  2. def close(): Unit

    Release any used resources.

    Release any used resources.

    Definition Classes
    HashedRelationWithAllNullKeys → HashedRelation
  3. def estimatedSize: Long
    Definition Classes
    HashedRelationWithAllNullKeys → KnownSizeEstimation
  4. def get(key: InternalRow): Iterator[InternalRow]

    Returns matched rows.

    Returns matched rows.

    Returns null if there is no matched rows.

    Definition Classes
    HashedRelationWithAllNullKeys → HashedRelation
  5. def get(key: Long): Iterator[InternalRow]

    Returns matched rows for a key that has only one column with LongType.

    Returns matched rows for a key that has only one column with LongType.

    Returns null if there is no matched rows.

    Definition Classes
    HashedRelation
  6. def getValue(key: InternalRow): InternalRow

    Returns the matched single row.

    Returns the matched single row.

    Definition Classes
    HashedRelationWithAllNullKeys → HashedRelation
  7. def getValue(key: Long): InternalRow

    Returns the matched single row with key that have only one column of LongType.

    Returns the matched single row with key that have only one column of LongType.

    Definition Classes
    HashedRelation
  8. def getValueWithKeyIndex(key: InternalRow): ValueRowWithKeyIndex

    Returns key index and matched single row.

    Returns key index and matched single row. This is for unique key case.

    Returns null if there is no matched rows.

    Definition Classes
    HashedRelation
  9. def getWithKeyIndex(key: InternalRow): Iterator[ValueRowWithKeyIndex]

    Returns an iterator for key index and matched rows.

    Returns an iterator for key index and matched rows.

    Returns null if there is no matched rows.

    Definition Classes
    HashedRelation
  10. def keyIsUnique: Boolean

    Returns true iff all the keys are unique.

    Returns true iff all the keys are unique.

    Definition Classes
    HashedRelationWithAllNullKeys → HashedRelation
  11. def keys(): Iterator[InternalRow]

    Returns an iterator for keys of InternalRow type.

    Returns an iterator for keys of InternalRow type.

    Definition Classes
    HashedRelationWithAllNullKeys → HashedRelation
  12. def maxNumKeysIndex: Int

    Returns the maximum number of allowed keys index.

    Returns the maximum number of allowed keys index.

    Definition Classes
    HashedRelation
  13. def productElementName(n: Int): String
    Definition Classes
    Product
  14. def productElementNames: Iterator[String]
    Definition Classes
    Product
  15. def valuesWithKeyIndex(): Iterator[ValueRowWithKeyIndex]

    Returns an iterator for keys index and rows of InternalRow type.

    Returns an iterator for keys index and rows of InternalRow type.

    Definition Classes
    HashedRelation