Responses limit

Hey Toby,

First huge thanks for the code contributions you have made to this plugin. Someday I’ll get around to releasing a new version which incorporates those changes – and it looks like people want that functionality so a big digital high-five to you.

All surveys and their respective responses are stored in the wp_options table and the type of data for option_value is longtext which can store up to 4GB of data – so there’s your absolute limit, but of course other data is stored in that field in addition to survey responses. Everything for all surveys is crammed into that one field. As the amount of data in that field increases more system resources will be required to extract it and parse it and eventually you’re probably going to bump up against some system limitation before you reach the max data size of 4GB.

Most of that I just pulled out of thin air, really – but should be close to accurate.