Module derived 

Output-column inference for derived, LATERAL, and CTE relations.

Functions

from_relation_names

The names the relations of a FROM clause are referenced by: each table’s alias, else its name, and each derived table’s alias.

infer_subquery_relation

The relation a subquery alias exposes.

open_subquery_relation

A relation whose output shape is not inferable, named alias.

refuse_correlated_derived

The refusal for a derived table without LATERAL that refers to another relation of the same FROM clause.

rename_output_columns

Rename an inferred relation’s columns to an alias column list.