[ "Operators" => \&calc_boolean, $xc ],
[ "Named Result Sets" => \&calc_nrs, $xc ],
[ "Record syntaxes" => \&calc_recsyn, $xc ],
[ "Explain" => \&calc_explain, $xc ],
[ "Operators" => \&calc_boolean, $xc ],
[ "Named Result Sets" => \&calc_nrs, $xc ],
[ "Record syntaxes" => \&calc_recsyn, $xc ],
[ "Explain" => \&calc_explain, $xc ],