519443 2026-04-26 17:06:51 +0000 [master Qt6] UpdateSchemaFromV16ToV17 not implemented for QMYSQL / MariaDB 2026-05-01 19:14:58 +0000 1 1 2 Applications digikam Database-Migration unspecified Mint (Ubuntu based) Linux RESOLVED INVALID NOR normal --- 1 kikoucalou digikam-bugs-null benedekppeter metzpinguin 9.1.0 0 oldest_to_newest 2512222 0 191821 kikoucalou 2026-04-26 17:06:51 +0000 Created attachment 191821 Qmysql log when starting digikam Version : digiKam master (Qt6 branch, compiled with kde-builder) Platform : Linux Mint (Debian-based) Database : External MariaDB (QMYSQL driver), user root on 127.0.0.1:3306 When starting digiKam, the following error appears: digikam.dbengine: No DB action defined for "UpdateSchemaFromV16ToV17" ! Implementation missing for this database type ( "QMYSQL" ). digikam.dbengine: Attempt to execute null action digikam.coredb: Core database: cannot process schema initialization This prevents any schema upgrade from version 16 to 17 with MySQL/MariaDB. SQLite works without issue. Steps to reproduce: 1. Compile latest digiKam master with kde-builder (graphics/digikam, Qt6) 2. Configure digiKam to use external MariaDB database 3. Start digiKam Expected: Schema update 16→17 should work for QMYSQL like it does for SQLite. Actual: Migration is blocked because the DB action is missing. Additional info: - Build with Qt 6.10 and kde builder - Database names: all "digikam" (core, thumbs, face, similarity) - mariadb Ver 15.1 Distrib 10.11.14-MariaDB, for debian-linux-gnu (x86_64) using EditLine wrapper - linux mint 22-3 2512224 1 metzpinguin 2026-04-26 17:13:24 +0000 Everything is present; this is an installation bug on your end. Your installation is accessing an outdated dbconfig.xml file. If you installed digiKam from Git in a different directory, you need to adjust the paths accordingly. Maik 2512232 2 kikoucalou 2026-04-26 19:25:43 +0000 Thanks, corrected, I had an env mistake ! digiKam: 9.1.0 KDE Frameworks: 6.26.0 Qt: Using 6.10.1 and built against 6.10.1 Linux Mint 22.3 (Xcb) Build ABI: x86_64-little_endian-lp64 Kernel: linux 6.14.0-37-generic 2512233 3 metzpinguin 2026-04-26 19:30:06 +0000 Thanks for the feedback. This update is specifically for MySQL/MariaDB to improve performance with many items. Maik 2513227 4 benedekppeter 2026-05-01 18:08:14 +0000 OS: Linux Mint 22.3 App: digiKam 9.1 (digiKam-9.1.0-20260501T140117-Qt6-x86-64.appimage) The same error ("This prevents any schema upgrade from version 16 to 17") occurs when using the AppImage file as well (source: https://files.kde.org/digikam/). 2513228 5 benedekppeter 2026-05-01 18:12:06 +0000 (In reply to Peter from comment #4) > OS: Linux Mint 22.3 > App: digiKam 9.1 (digiKam-9.1.0-20260501T140117-Qt6-x86-64.appimage) > > The same error ("This prevents any schema upgrade from version 16 to 17") > occurs when using the AppImage file as well (source: > https://files.kde.org/digikam/). I could only fix the bug inside digiKam using database migration. 2513239 6 metzpinguin 2026-05-01 19:14:58 +0000 No, I cannot reproduce this in a normal installation; AppImage loads the dbconfig.xml file from the internal AppImage installation in the TEMP directory. This is because we adjust the XDG_DATA_DIRS environment variable accordingly. Maik 191821 2026-04-26 17:06:51 +0000 2026-04-26 17:06:51 +0000 Qmysql log when starting digikam digikam-debug-20260426-185149.log text/x-log 959 kikoucalou cXQuY29yZS5sb2dnaW5nOiBJZ25vcmluZyBtYWxmb3JtZWQgbG9nZ2luZyBydWxlOiAnZGlnaWth bS4qPXRydWUgZGlnaWthbS5kYmVuZ2luZT10cnVlIGRpZ2lrYW0uY29yZWRiPXRydWUgZGlnaWth bS5kYXRhYmFzZT10cnVlIGRpZ2lrYW0uc2NoZW1hPXRydWUgZGlnaWthbS5kYm1hbmFnZXI9dHJ1 ZSBkaWdpa2FtLmNvcmU9dHJ1ZSBxdC5zcWw9dHJ1ZSBxdC5kYj10cnVlICouc3FsPXRydWUnCnF0 Lmd1aS5pY2M6IGZyb21JY2NQcm9maWxlOiBmYWlsZWQgc2l6ZSBzYW5pdHkgMgpxdC5xcGEuc2Vy dmljZXM6IEZhaWxlZCB0byByZWdpc3RlciB3aXRoIGhvc3QgcG9ydGFsIFFEQnVzRXJyb3IoIm9y Zy5mcmVlZGVza3RvcC5wb3J0YWwuRXJyb3IuRmFpbGVkIiwgIkNvdWxkIG5vdCByZWdpc3RlciBh cHAgSUQ6IENvbm5lY3Rpb24gYWxyZWFkeSBhc3NvY2lhdGVkIHdpdGggYW4gYXBwbGljYXRpb24g SUQiKQpkaWdpa2FtLmRiZW5naW5lOiBObyBEQiBhY3Rpb24gZGVmaW5lZCBmb3IgIlVwZGF0ZVNj aGVtYUZyb21WMTZUb1YxNyIgISBJbXBsZW1lbnRhdGlvbiBtaXNzaW5nIGZvciB0aGlzIGRhdGFi YXNlIHR5cGUgKCAiUU1ZU1FMIiApLgpkaWdpa2FtLmRiZW5naW5lOiBBdHRlbXB0IHRvIGV4ZWN1 dGUgbnVsbCBhY3Rpb24KZGlnaWthbS5jb3JlZGI6IENvcmUgZGF0YWJhc2U6IGNhbm5vdCBwcm9j ZXNzIHNjaGVtYSBpbml0aWFsaXphdGlvbgpkaWdpa2FtLmRiZW5naW5lOiBObyBEQiBhY3Rpb24g ZGVmaW5lZCBmb3IgIlVwZGF0ZVNjaGVtYUZyb21WMTZUb1YxNyIgISBJbXBsZW1lbnRhdGlvbiBt aXNzaW5nIGZvciB0aGlzIGRhdGFiYXNlIHR5cGUgKCAiUU1ZU1FMIiApLgpkaWdpa2FtLmRiZW5n aW5lOiBBdHRlbXB0IHRvIGV4ZWN1dGUgbnVsbCBhY3Rpb24KZGlnaWthbS5jb3JlZGI6IENvcmUg ZGF0YWJhc2U6IGNhbm5vdCBwcm9jZXNzIHNjaGVtYSBpbml0aWFsaXphdGlvbgo=