The name of the column in the user data table.
The name of a constraint from gpkg_data_column_constraints, or null if unconstrained.
A human-readable description for the column, or null if not specified.
The MIME type of the column values (e.g., 'text/xml'), or null if not applicable.
A human-readable identifier for the column, or null if not specified.
The name of the user data table containing the column.
A human-readable title for the column, or null if not specified.
Represents a row in the
gpkg_data_columnstable.Each record provides descriptive metadata for a column in a user data table, including a human-readable name, title, description, MIME type, and an optional reference to a constraint.