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use correct operator in query based on JSON document

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viditn91 2014-09-03 02:31:00 +05:30
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guides/source/active_record_postgresql.md
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@ -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