AddConstraint¶

AddConstraint is a TableChange (Spark SQL) of AlterTableAddConstraint command.

Creating Instance¶

AddConstraint takes the following to be created:

• Constraint Name
• Constraint SQL Expression (text)

AddConstraint is created when:

• AlterTableAddConstraint command is requested for the table changes

Query Execution¶

AddConstraint is resolved to AlterTableAddConstraintDeltaCommand and immediately executed when DeltaCatalog is requested to alter a delta table.