Hi, Alex

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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In some situations, using certain functions within SQL, the wpDataTables server has problems with parsing the query and building new queries dynamically (rarely happens, but does sometimes).

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, calculation functions and search may not work properly if you include:

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

• Please do not use “LIMIT” in the SELECT statement. wpDataTables adds it automatically and it will be overridden.
• Please do not use “ORDER BY” in the SELECT statement. wpDataTables has its own sorting engine so it makes no sense to use MySQL’s sorting, since it will be overridden. Also, server-side processing feature adds this part of statement automatically when users trigger the sorting on the front-end, and having it in initial statement may cause the table to crash.

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Perhaps you could try this modification:

Remove the accent graves from the query ` ;

and because you are setting the "FROM table_name", i would try like this :

SELECT temperaturemin,
       temperature,
       temperaturemax
FROM beta5

Let me know if that helped, please. Thank you