triggers - How do I increase the maximum length of a MySQL error message? -

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i wrote before insert trigger on particular table in database in order impose value constraints. code returns semicolon-separated list of errors. intent have flask app return list of user-defined error messages client.

however, if more 1 error occurs, message gets cut off mid sentence.

here sort of redacted error message: 

the specified xxxxxxx xxxxx xxxxxxxx (105) exceeds maximum value (100).; specified xxxxxxx xxxxxxx xxxxx xxxxxxxx (90)

here of code trigger:

begin     declare rtn text;     declare error boolean;     -- declare variables here     -- select values variables     -- check new row fields against variables     if error     signal sqlstate '02001'         set message_text = rtn;     end if;

assuming using php, there maximum limit exception messages. defined log_errors_max_len in php.ini. refer here more details https://bugs.php.net/bug.php?id=31955

you can try , change that.

but suggest using stored procedure/function insert data. can return error value of length.


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