this.ref.collection("users", ref => ref.where("uid1","in", [reciverId, senderId])
.where("uid2","in", [reciverId, senderId]))
throws an error stating:
"Invalid query. Multiple 'in' filters cannot be used."
this.ref.collection("users", ref => ref.where("uid1","in", [reciverId, senderId])
.where("uid2","in", [reciverId, senderId]))
throws an error stating:
"Invalid query. Multiple 'in' filters cannot be used."
Exciting news! With the launch of the latest Firebase JS SDK Version 9.18.0 on March 16, 2023, users now have the ability to merge multiple in clauses in a single Query.
However, keep in mind that there is a restriction when it comes to the number of disjunctions allowed in Cloud Firestore queries - a maximum of 30 disjunctions in disjunctive normal form, as detailed in the documentation (which includes scenarios illustrating the count of disjunctions for various query types)
The limitation related to Firestore is clearly outlined in the official documentation:
Limitations
Please take note of the following constraints regarding in and array-contains-any:
- in and array-contains-any can accommodate up to 10 comparison values.
- You are restricted to using just one in or array-contains-any clause per query. It's not possible to employ both in and array-contains-any in the same query simultaneously.
- You may merge array-contains with in but not with array-contains-any.
let chatMessages = this.db.collection<ChatMessage>('messages',
ref => ref.where('email', 'in', [this.currentUser.email, this.receiverUser.email])
.where('receiver_email', 'in', [this.currentUser.email, this.receiverUser.email])
.orderBy('timestamp')
);
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