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object Invariants

List of invariants that can be defined on a Delta table that will allow us to perform validation checks during changes to the table.

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Type Members

  1. case class ArbitraryExpression(expression: Expression) extends Rule with Product with Serializable

    A SQL expression to check for when writing out data.

  2. case class PersistedExpression(expression: String) extends RulePersistedInMetadata with Product with Serializable

    Persisted companion of the ArbitraryExpression rule.

  3. case class PersistedRule(expression: PersistedExpression = null) extends Product with Serializable

    Rules that are persisted in the metadata field of a schema.

  4. sealed trait Rule extends AnyRef
  5. sealed trait RulePersistedInMetadata extends AnyRef

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. val INVARIANTS_FIELD: String
  5. final def asInstanceOf[T0]: T0
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  6. def clone(): AnyRef
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    protected[lang]
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  7. final def eq(arg0: AnyRef): Boolean
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  8. def equals(arg0: AnyRef): Boolean
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  9. def finalize(): Unit
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    @throws(classOf[java.lang.Throwable])
  10. final def getClass(): Class[_ <: AnyRef]
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    @native()
  11. def getFromSchema(schema: StructType, spark: SparkSession): Seq[Constraint]

    Extract invariants from the given schema

  12. def hashCode(): Int
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    @native()
  13. final def isInstanceOf[T0]: Boolean
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  14. final def ne(arg0: AnyRef): Boolean
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  15. final def notify(): Unit
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    @native()
  16. final def notifyAll(): Unit
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    @native()
  17. final def synchronized[T0](arg0: => T0): T0
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  18. def toString(): String
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  19. final def wait(): Unit
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    @throws(classOf[java.lang.InterruptedException])
  20. final def wait(arg0: Long, arg1: Int): Unit
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    @throws(classOf[java.lang.InterruptedException])
  21. final def wait(arg0: Long): Unit
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    @throws(classOf[java.lang.InterruptedException]) @native()
  22. object ArbitraryExpression extends Serializable
  23. case object NotNull extends Rule with Product with Serializable

    Used for columns that should never be null.

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