IssueTracker

Firestore lacks a dedicated "LIKE" operator for performing partial string matches in queries.
 
Introduce a "LIKE" operator similar to SQL, allowing developers to use wildcard characters for partial string matching:
Search Engine build in!

Somenthing like "LIKE" in SQL databases.

some workarounds were given:

https://stackoverflow.com/questions/46568142/google-firestore-query-on-substring-of-a-property-value-text-search

https://stackoverflow.com/questions/46642641/sql-like-operator-in-cloud-firestore