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I updated our setup to the latest version - 2.27.0 and the correct schema. And this seemed to have fixed the issue we hat with the database.

Ok, i will get back to you if the upgrade is done!

(Kind of) good to know.
What could have gone wrong? We did not alter the schema nor did we change anything in the PHP code.

(Btw. we are using Mantis 2.25.4, i corrected that in the original post.)

Hello dear maintainers,

we are running MantisBt since forever. One Project contains almost 100000 entries with several attachments ranging from logfiles to sometimes 40MB huge files. This project exists since 2012. Running filters on this project takes an aweful amount of time, so we decided to ...

In the previous mentioned script i set:
SET @schema_reference = 'mantis_1216';
the result however, seems not too helpful (:


-- Create Temporary Helper views
-- Update Column type and Nullable attribute
-- Default value
-- Tables
DROP TABLE mantis_tag_table ;
DROP TABLE mantis_bug_history_table ...

I tried to upgrade to the direct successor 1.2.16 and the last version 1.2.20 with unpacking to a specific folder and then running:


http://localhost:1234/mantis20/admin/install.php
http://localhost:1234/mantis16/admin/install.php


both failing with this error message:

APPLICATION ERROR #401 ...

Hey guys,

i am following the guide on he upgrade process for Mantis. However i am getting some schema missmatch errors.


The installed version is Mantis 1.2.15 with Schema 89.
When download a new (old) version of 1.2.15 and install it with a new (latest) MariaDB setup, the schema version is at 183 ...

Ah ok, i was unaware that is not possible directly. I ll try as you suggested. Thanks!

Running the upgrade php script also shows this error:

# php upgrade_unattended.php
Post 1.0 schema changes
Connecting to database... OK
Schema step 90: UpdateFunction ( date_migrate ) APPLICATION ERROR #401: Database query failed. Error received from database was #1054: Unknown column 'date ...

Hello folks,
first thanks for maintaining and taking care of this awesome simple tool!!
We have a Mantis Installation running stable for a long time.

Now we face the issue of moving everything to a new server with a fresh setup. So i basically followed these steps https://www.mantisbt.org/wiki/doku ...