DataTable cannot programmatically clear filters

Describe your context

dash                          2.3.0
dash-bootstrap-components     1.0.3
dash-core-components          2.0.0
dash-daq                      0.5.0
dash-html-components          2.0.0
dash-table                    5.0.0

Describe the bug

There is no way to programmatically clear a filter applied to a DataTable column via a callback. This has been documented by several other users in both the community forum and the old dash-table repo prior to the 2.0 release.

References:

• Community forum
• #715 from old repo

According to the references above, the filter_query property only reacts to valid, non-empty strings like '{col_1} = abc'. Requiring a valid, non-empty string prevents resetting the filter_query to an empty state.

Expected behavior

There should be a way to clear this displayed filter text via a callback. Possibly through some new operator in the filter_query syntax like '{col_1}' EMPTY

Screenshots

See references above.

Beginnen Sie damit, das im Issue beschriebene Verhalten von DataTable filter_query sowie die verlinkte Community-Forum-Diskussion und das alte dash-table-Issue #715 zu prüfen. Ermitteln Sie, wie ein Callback den angezeigten Spaltenfiltertext löschen kann, und prüfen Sie, ob die bestehende Syntax oder ein neuer Operator das endgültige Verhalten festlegen sollte.