date_views_filter_handler_simple::operators in core/modules/date/views/date_views_filter_handler_simple.inc

views_handler_filter_date::accept_exposed_input in core/modules/views/handlers/views_handler_filter_date.inc

Do some minor translation of the exposed input

views_handler_filter_date::validate_valid_time in core/modules/views/handlers/views_handler_filter_date.inc

Validate that the time values convert to something usable.

views_handler_filter_group_by_numeric::query in core/modules/views/handlers/views_handler_filter_group_by_numeric.inc

Add this filter to the query.

views_handler_filter_ncs_last_updated::query in core/modules/comment/views/views_handler_filter_ncs_last_updated.inc

Add this filter to the query.

views_handler_filter_numeric::accept_exposed_input in core/modules/views/handlers/views_handler_filter_numeric.inc

Do some minor translation of the exposed input

views_handler_filter_numeric::operator_options in core/modules/views/handlers/views_handler_filter_numeric.inc

Provide a list of all the numeric operators

views_handler_filter_numeric::operator_values in core/modules/views/handlers/views_handler_filter_numeric.inc

views_handler_filter_numeric::query in core/modules/views/handlers/views_handler_filter_numeric.inc

Add this filter to the query.