leftJoin() public method Appends a LEFT OUTER JOIN part

buildZoneMatch() public method Create MATCH expressions

setConnection() public method

buildMatch() public method Create MATCH expression.

findColumns() protected method Collects the metadata of

$isField public property Whether this column is a indexed field

$db public property The Sphinx connection that this command is

defaultConnection() protected method

buildGroupBy() public method

buildHashCondition() public method Creates a condition