Firestore doesn’t support native SQL-like queries, such as “LIKE” or “JOIN”. It also lacks full-text search and cannot perform complex queries that involve multiple fields.
To overcome these limitations, you can use third-party services like Algolia for full-text search. For SQL-like operations, consider using Firebase’s Realtime Database which supports more complex querying. Alternatively, structure your data to fit Firestore’s query model by denormalizing it or storing additional metadata to aid in querying.
For multi-field queries, create composite indexes. However, be aware of the performance implications. If a query requires scanning large amounts of data, it may be better to perform some processing client-side or use Cloud Functions to offload this work from the database.
