DescribeColumnCommand Logical Command¶

DescribeColumnCommand is a LeafRunnableCommand that represents a DescribeColumn logical operator with the default spark_catalog at execution.

Creating Instance¶

DescribeColumnCommand takes the following to be created:

• TableIdentifier
• Column Name Parts
• isExtended flag
• Output Attributes

DescribeColumnCommand is created when:

• ResolveSessionCatalog logical resolution rule is executed (to resolve DescribeColumn logical operators with the default spark_catalog)