Hi, David.

Firstly, I would like to sincerely apologize for the delayed response as we have been experiencing an unusually high number of tickets. I am sorry that it has taken longer than usual to respond to your concern and your patience is highly appreciated.

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You are right - our SQL Parser has quite a few limitations,

when you enable server-side processing in SQL Tables in our Plugin.

I will do my best to advise on most important details about this.

Our logic is based on a PHP SQL parser which has full support for the SQL dialect for the following statement types

SELECT, INSERT, UPDATE, DELETE, REPLACE, RENAME, SHOW, SET, DROP, CREATE INDEX, CREATE TABLE, EXPLAIN and DESCRIBE.

Some of them are disabled for security reasons.

Filtering, sorting, and search may not work properly if you include:

• Accent graves ( ` ) around the table name
• JOIN functions
• UNION functions
• CONCAT functions
• sub-queries

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So, first you can check for accent graves around the table name, if you have this, remove it...

Then, see if you used CONCAT to create any column.

If so, go into this column setting, and disable it from "global search" in the Filtering tab.

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If none of that helps,

you can try preparing a MySQL view (which will return the data that you need, call it e.g. “view1” and then build a wpDataTables based on a simple query like "SELECT * FROM view1″.

 If you need help with that, you can see our video, where we show an example of using View in our plugin.

I hope that helps.

Our developers will do their best to try and improve this in the future,

but i can't say a realistic ETA on it.

If you have an idea how they could improve it,

Please feel free to search on our suggestions page, 

 to see if someone may be already suggested this feature. If you can't see it, feel free to add your suggestion there,  and as more people vote, the feature will move higher on the priority list.

You can certainly follow our changeLog page if you'd like ( it is also available in the plugin dashboard), where we state any changes/new features/bug fixes during updates;

and our newsletter, so you're informed about new features, bug fixes, freebies, etc.

Hey David.

I would also advise creating a view since, as Milos mentioned, we're using a 3rd party PHP-SQL parser which is limited.

Our developers are trying to improve it with every update, but with it being a 3rd party parser, it's not easy doing that. Maybe in the future we'll include a better one, or we'll develop our own. I can't say anything at this time.