as we know an Algolia record is a set of key-value-pairs called attributes. And those attributes do not need to respect a schema and can change from one object to another.
I am now in the situation that one index that I have to work with contains records with an “attribute_a” and records that do not have this attribute at all.
I know how to browse and filter for a specific expression in “attribute_a”. But how am I able to query for the absence of this attribute. Like “give me all records that do not have this attribute”?