$query_parameters
$query_parameters : array
WP_Query filter "parameters"
This array defines parameters for the query's join, where and orderby filters. The parameters are set up in the _prepare_list_table_query function, and any further logic required to translate those values is contained in the filters.
Array index values are: use_alt_text_view, use_postmeta_view, use_orderby_view, alt_text_value, postmeta_key, postmeta_value, patterns, detached, orderby, order, mla-metavalue, debug (also in search_parameters)