fix vs

Author: alrocar

tinybird/endpoints/llm_messages.pipe

@@ -69,7 +69,7 @@ SQL >
         AND timestamp < {{DateTime(end_date)}}
         {% end %}
         {% if defined(embedding) %}
-        AND cosineDistance(embedding, {{ Array(embedding, 'Float32') }}) > {{ Float64(similarity_threshold, 0.3) }}
+        AND length(embedding) > 0 and similarity > {{ Float64(similarity_threshold, 0.3) }}
         and response_status != 'error'
         {% end %}
     {% if defined(embedding) %}