pycsw is an OGC CSW server implementation written in Python. pycsw fully implements the OpenGIS Catalogue Service Implementation Specification [Catalogue Service for the Web]. Initial development started in 2010 (more formally announced in 2011). The project is certified OGC Compliant, and is an OGC Reference Implementation. pycsw allows for the publishing and discovery of geospatial metadata via numerous APIs (CSW 2/CSW 3, OpenSearch, OAI-PMH, SRU). Existing repositories of geospatial metadata can also be exposed, providing a standards-based metadata and catalogue component of spatial data infrastructures. pycsw is Open Source, released under an MIT license, and runs on all major platforms (Windows, Linux, Mac OS X). Please read the docs at https://pycsw.org/docs for more information.
Description
as advertised in https://demo.pycsw.org/cite/conformance pycsw does not support cql-text, only cql2-text the spec at https://portal.ogc.org/files/96288 does not mention this flavour of cql, it will arrive in cql2-draft I wonder if that creates confusion with users?
a minimal improvement suggestion here, could be to indicate to users in the error message, which filter-lang are supported