Module column

Structs

• ColumnCatalog
• ColumnDesc
• ColumnId
  Column ID is the unique identifier of a column in a table. Different from table ID, column ID is not globally unique.

Enums

• SystemColumn

Functions

• columns_extend
• debug_assert_column_ids_distinct
• max_column_id
  FIXME: perhapts we should use sth like ColumnIdGenerator::new_alter, However, the SourceVersion is problematic: It doesn’t contain next_col_id. (But for now this isn’t a large problem, since drop column is not allowed for source yet..)