Hello. > Will the database files dbName.h2.db , dbName.lock.db, dbName.mv.db and dbName.track.db work in the latest version No, you need to export your databases to SQL scripts with old version of H2 and create new databases with the new version and execute these scripts (this procedure was always required to upgrade between different versions): https://h2database.com/html/tutorial.html#upgrade_backup_restore You may need to add FROM_1X to import options, documentation suggests VARIABLE_BINARY, but FROM_1X can handle incorrect grammar used by old versions of H2 much better, unfortunately, documentation isn't up to date.
There is also a org.h2.tools.Upgrade utility in H2 2.*.*, you can try to use it instead (it requires access to Internet to download an old version). You can also try a third-party upgrade tool: https://github.com/manticore-projects/H2MigrationTool > or I will have to change those files and Queries as well? It depends on their correctness, new versions of H2 are more restrictive and many bugs were fixed, there is no bug-for-bug emulation for older versions. > How Session has changed ? It is not a part of API, applications should never try to use it directly. What exactly are you trying to do with it? > I was lookinginto the code and I saw that the object of SessionLocal in the PgServerThread.initDb() is null. PgServerThread should never be used by applications and librarires. If you need to start the PG server to allow connections from ODBC drivers for PostgreSQL, you should use org.h2.tools.Server.createPgServer(optional_arguments).start(); or command-line options. This server is also started automatically when you start H2 as a service without parameters: java -jar h2-*.jar > Engine.createSession(ci) is returning null This method never returns null in H2 itself, it either returns an instance, or throws an exception. If you use modified sources, reflection, or some code injection and modification libraries everything in possible, but it that case it isn't a problem of H2. -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to h2-database+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/h2-database/85462e4d-3231-4528-85e0-ac1eaf02c5b0n%40googlegroups.com.
