DeltaUpdateTable Unary Logical Operator¶

DeltaUpdateTable is an unary logical operator (Spark SQL) that represents UpdateTable (Spark SQL) at execution.

Creating Instance¶

DeltaUpdateTable takes the following to be created:

• Child LogicalPlan (Spark SQL)
• Update Column Expressions (Spark SQL)
• Update Expressions (Spark SQL)
• (optional) Condition Expression (Spark SQL)

DeltaUpdateTable is created when:

• DeltaAnalysis logical resolution rule is executed and resolves UpdateTables

Logical Resolution¶

DeltaUpdateTable is resolved to a UpdateCommand when PreprocessTableUpdate post-hoc logical resolution rule is executed.