pub fn build_modify_column_nullable(
backend: &DatabaseBackend,
table: &str,
column: &str,
nullable: bool,
fill_with: Option<&str>,
current_schema: &[TableDef],
) -> Result<Vec<BuiltQuery>, QueryError>Expand description
Build SQL for changing column nullability. For nullable -> non-nullable transitions, fill_with should be provided to update NULL values.