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what is the query language used in google cloud logging? it doesn't seem to be lucene based? For example, below is a query 

metadata.serviceName="appengine.googleapis.com"
metadata.labels."appengine.googleapis.com/module_id"="..."
metadata.labels."appengine.googleapis.com/version_id"=",,,"
log="appengine.googleapis.com/stdout"
(error OR completed)
Sahas
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1 Answers1

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Google seems to be using their own custom language for Stackdriver filters.

Syntax definition looks like this:

expression = ["NOT"] comparison { ("AND" | "OR") ["NOT"] comparison }

comparison = name OP value
           | value

OP = "<=" | "<" | ">=" | ">"  | "!=" | "=" | ":"

value = number
      | string
      | function
      | "(" expression ")"

You can find the rest of syntax definition here:

https://cloud.google.com/logging/docs/view/advanced_filters#advanced_filter_syntax

prog893
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