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org.apache.spark.sql.delta

WriteSerializable

case object WriteSerializable extends IsolationLevel with Product with Serializable

This isolation level will ensure snapshot isolation consistency guarantee between write operations only. In other words, if only the write operations are considered, then there exists a serializable sequence between them that would produce the same result as seen in the table. However, if both read and write operations are considered, then there may not exist a serializable sequence that would explain all the observed reads.

This provides a lower consistency guarantee than Serializable but a higher availability than that. For example, unlike Serializable, this level allows an UPDATE operation to be committed even if there was a concurrent INSERT operation that has already added data that should have been read by the UPDATE. It will be as if the UPDATE was executed before the INSERT even if the former was committed after the latter. As a side effect, the visible history of operations may not be consistent with the result expected if these operations were executed sequentially one by one.

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

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 equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  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. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  11. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  12. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  13. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  14. def productElementName(n: Int): String
    Definition Classes
    Product
  15. def productElementNames: Iterator[String]
    Definition Classes
    Product
  16. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  17. def toString(): String
    Definition Classes
    IsolationLevel → AnyRef → Any
  18. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  19. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  20. 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 IsolationLevel

Inherited from AnyRef

Inherited from Any

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