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I think the problem is actually how we deal with numbers when returning values from psql result sets. Pretty much sure the problem is in luapgsql....

Am 10.02.2016 um 18:05 schrieb Roberto Ierusalimschy <>:

>> This little detail becomes "great" fun when you use numbers as integers in SQL statement:
>> local id = tonumber(  -- Get the id from a string in a webform
>> local res = db:execParams('select * from foo where id = $1::integer', id)
>> In PostgreSQL this results in an error like "Invalid input syntax for type integer: 41.0".
> What is funny is that 'tonumber' follows the syntax given to it. If it
> is returning a float, it is because '' has a float format (either
> a point or an exponent). Anyway, the correct approach is to follow
> Daniel's suggestion.
> -- Roberto