AlterTableExec¶

AlterTableExec is a V2CommandExec leaf physical command to represent AlterTableCommand logical operator at execution.

Creating Instance¶

AlterTableExec takes the following to be created:

• TableCatalog
• Table Identifier
• TableChanges

AlterTableExec is created when:

• DataSourceV2Strategy execution planning strategy is executed (to plan an AlterTableCommand logical operator)

Executing Command¶

run(): Seq[InternalRow]

run is part of the V2CommandExec abstraction.

run requests the TableCatalog to alter a table (with the identifier and TableChanges).