CODEWITHSUNDEEP
google-app-enginegoogle-cloud-datastoregqlgqlquery
user242153
user242153

Reputation: 151

GQL Reference for Appengine

Anyone have a good reference guide for GQL (query language for google appengine datastore)?

I find the reference guide on the google appengine site very limited with examples

Upvotes: 1

Views: 703

Answers (1)

Dave W. Smith
Dave W. Smith

Reputation: 24966

The doc is limited because GQL is a very, very simple query language, intended to provided an SQL-like interface on top of protocol buffers. There's not a lot of complexity to it.

The most instructive thing may be to read the GQL source. It's online here. Note in particular how GQL is parsed with a simple, hand-rolled top-down parser.

Upvotes: 3

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