Constants
Constants defined in the Solar_Sql_Select class.
IGNORE
A constant so we can find "ignored" params, to avoid func_num_args().
Value: (string)
'--5a333dc50d9341d8e73e56e2ba591b87'
The md5() value of 'Solar_Sql_Select::IGNORE', so it should be unique.
Yes, this is hackery, and perhaps a micro-optimization at that.