module Sequel::Plugins::ColumnSelect::ClassMethods
Private Instance Methods
convert_input_dataset(ds)
click to toggle source
If the underlying dataset selects from a single table and has no explicit selection, explicitly select all columns from that table, qualifying them with table's name.
Calls superclass method
# File lib/sequel/plugins/column_select.rb, line 42 def convert_input_dataset(ds) ds = super if !ds.opts[:select] && (from = ds.opts[:from]) && from.length == 1 && !ds.opts[:join] if db.supports_schema_parsing? cols = check_non_connection_error{db.schema(ds)} if cols cols = cols.map{|c, _| c} end end if cols ||= check_non_connection_error{ds.columns} ds = ds.select(*cols.map{|c| Sequel.qualify(ds.first_source, Sequel.identifier(c))}) end end ds end