Searching Substrings in Annotation Labels: Need Help?

Jasper H. · 2025-04-08T12:00:26.730Z

Hi! I was surprised to find there no way to search for substrings in annotation labels in the dashboard, e.g. 'aString' in annotations['UserScore'].label This is reported as an invalid expression. Or is there a different way to create such a query? Thanks!

It seems likely that substring search in annotation labels using the in operator is not directly supported in the Phoenix dashboard. According to the Phoenix documentation, the where() method in SpanQuery allows for filtering using Python boolean expressions, but function/method calls are generally disallowed, which might include substring searches.Would you like more detail on possible workarounds or further assistance?Sources: - Phoenix documentation

💡 Hint: Mention RunLLM in the thread for followups.

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