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org.apache.spark.sql.delta

ResolveDeltaMergeInto

object ResolveDeltaMergeInto

Implements logic to resolve conditions and actions in MERGE clauses and handles schema evolution.

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Type Members

  1. type ResolveExpressionsFn = (Seq[Expression], Seq[LogicalPlan]) => Seq[Expression]

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  15. def resolveOrFail(resolveExprsFn: ResolveExpressionsFn, exprs: Seq[Expression], plansToResolveExprs: Seq[LogicalPlan], mergeClauseTypeStr: String): Seq[Expression]

    Resolves expressions against given plans or fail using given message.

    Resolves expressions against given plans or fail using given message. It makes a best-effort attempt to throw specific error messages on which part of the query has a problem.

  16. def resolveReferencesAndSchema(merge: DeltaMergeInto, conf: SQLConf)(resolveExprsFn: ResolveExpressionsFn): DeltaMergeInto
  17. def resolveSingleExprOrFail(resolveExprsFn: ResolveExpressionsFn, expr: Expression, plansToResolveExpr: Seq[LogicalPlan], mergeClauseTypeStr: String): Expression

    Convenience wrapper around resolveOrFail() when resolving a single expression.

  18. final def synchronized[T0](arg0: => T0): T0
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  19. def throwIfNotResolved(expr: Expression, plans: Seq[LogicalPlan], mergeClauseTypeStr: String): Unit
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