use correct operator in query based on JSON document

6d988e2a · viditn91 · a2f8377d · 6d988e2a
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guides/source/active_record_postgresql.md guides/source/active_record_postgresql.md +2 -1

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--- a/guides/source/active_record_postgresql.md
+++ b/guides/source/active_record_postgresql.md
@@ -132,7 +132,8 @@ event = Event.first
 event.payload # => {"kind"=>"user_renamed", "change"=>["jack", "john"]}

 ## Query based on JSON document
-Event.where("payload->'kind' = ?", "user_renamed")
+# The -> operator returns the original JSON type (which might be an object), whereas ->> returns text
+Event.where("payload->>'kind' = ?", "user_renamed")
 ```

 ### Range Types