[WIP] Identify and improve slow or inefficient code

[Copilot]

Performance Improvements for Messenger Library

Identified Issues and Plan:

• Issue 1: In messenger.go, the Publish method processes messages sequentially in a loop. For large batches, this can be slow.

  • Fix: Add concurrency with goroutines and proper error handling

• Issue 2: In store/postgres/store.go, the Published method is called once per message in messenger.Publish(), causing N database round trips.

  • Fix: Implement batch update for Published method to reduce DB calls

• Issue 3: In store/postgres/store.go, the Find method performs two separate queries (one for data, one for count) every time.

  • Fix: Use a single query with window functions or cache count when appropriate

• Issue 4: In inspector.go, missing proper index creation suggestions and no optimization for message filtering.

  • Fix: Add index creation in ensureTable for commonly queried columns

• Issue 5: In messenger.go, ticker continues even when there are no messages, wasting CPU cycles.

  • Fix: Implement backoff strategy when no messages are found

• Issue 6: In store/postgres/store.go, the JSON validation check json.Valid() in MarshalJSON is called for every message, which can be slow.

  • Fix: Cache validation result or optimize the check

Initial analysis complete. Will now implement these improvements with minimal code changes.

Original prompt

Identify and suggest improvements to slow or inefficient code

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.