GQL LIMIT error in production, not on dev.

[tristansokol]

I get the following error when I tried my code in the actual app engine environment, but it works fine in the dev environment (presumably a difference between @tomwalder's GQL parser and Google's).

PHP Fatal error:  Uncaught exception 'google\appengine\runtime\ApplicationError' with message 'Encountered "LIMIT" at line 1, column 32.
Was expecting one of:
    <EOF> 
    "+" ...
    ' in /base/data/home/runtimes/php/sdk/google/appengine/runtime/RealApiProxy.php:53

My query is SELECT * FROM Artists OFFSET 0 used in the FetchOne command i.e.
$obj_store->fetchOne("SELECT * FROM Artists OFFSET ".$offset);

My first guess is an issue with using OFFSET before LIMIT, but I will keep investigating further if nobody intervenes.

[tristansokol]

Looking at https://github.com/tomwalder/php-gds/blob/master/src/GDS/Mapper/ProtoBufGQLParser.php a little more, it appears that the dev server doesn't care which order things are in but apparently AppEngine production does.

I tried $entity = $obj_store->fetchAll( "SELECT * FROM Artists LIMIT 1 OFFSET ".$offset); and it worked fine. Although it sounds like this will be more expensive from the readme.

I can add a pull request that will throw an exception if OFFSET is used in FetchOne, and add it to the documentation if desired.