All queries lost migrating from 0.19.3 to 0.20.0

I am super frustrated with this (been trying to fix it for hours). I’ve got a simple Jar based Metabse deployment using 0.19.3. I am trying to migrate to 0.20.0 (in order to migrate from h2 to mysql… as it is not possible with < 0.20).

However, it seems that when I start metabase with the 0.20.0 jar for some reason it does not recognize the contents of the database and forces me to setup a new database. Building from scratch is not an option, as I have hundreds of queries and some dashboards already there…

Anyone please help!
The startup log from the “bad” 0.20.0 and the “good” 0.19.3 starts:
0.20.0:
~$ java -server -jar metabase.jar.20
12-01 23:57:34 INFO metabase.util :: Loading Metabase…
12-01 23:57:43 INFO metabase.core :: Starting Metabase in STANDALONE mode
12-01 23:57:43 INFO metabase.core :: Launching Embedded Jetty Webserver with config:
{:port 3000}

12-01 23:57:43 INFO metabase.core :: Starting Metabase version v0.20.1 (05c22e2 release-0.20.1) ...
12-01 23:57:43 INFO metabase.core :: System timezone is 'America/Mexico_City' ...
12-01 23:57:43 INFO metabase.db :: Verifying h2 Database Connection ...
12-01 23:57:44 DEBUG metabase.driver :: Registered driver :h2 🚚
12-01 23:57:44 INFO metabase.db :: Verify Database Connection ... ✅
12-01 23:57:44 INFO metabase.db :: Running Database Migrations...
12-01 23:57:44 INFO metabase.db :: Setting up Liquibase...
12-01 23:57:44 INFO metabase.db :: Liquibase is ready.
12-01 23:57:44 INFO metabase.db :: Checking if Database has unran migrations...
12-01 23:58:04 INFO metabase.db :: Database Migrations Current ... ✅
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier 'hocon:/reference,/application,/c3p0,/' could not be found. Skipping.", exception -> null]
12-01 23:58:04 INFO db.migrations :: Running all necessary data migrations, this may take a minute.
12-01 23:58:04 INFO db.migrations :: Finished running data migrations.
12-01 23:58:04 INFO metabase.core :: Looks like this is a new installation ... preparing setup wizard
12-01 23:58:04 INFO metabase.core :: Please use the following url to setup your Metabase installation:

http://localhost:3000/setup/


12-01 23:58:04 INFO metabase.core :: Metabase Initialization COMPLETE

0.19.3:

~$ java -server -jar metabase.jar.19.3
12-01 23:54:50 INFO metabase.core :: Starting Metabase in STANDALONE mode
12-01 23:54:50 INFO metabase.core :: Launching Embedded Jetty Webserver with config:
 {:port 3000}

12-01 23:54:50 INFO metabase.core :: Starting Metabase version v0.19.3 (796613e release-0.19.3) ...
12-01 23:54:50 INFO metabase.core :: System timezone is 'America/Mexico_City' ...
12-01 23:54:50 INFO metabase.db :: Verifying h2 Database Connection ...
12-01 23:54:50 DEBUG metabase.driver :: Registered driver :h2 🚚
12-01 23:54:50 INFO metabase.db :: Verify Database Connection ... ✅
12-01 23:55:13 INFO metabase.db :: Database Migrations Current ... ✅
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier '/mchange-commons.properties' could not be found. Skipping.", exception -> null]
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier '/mchange-log.properties' could not be found. Skipping.", exception -> null]
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier '/c3p0.properties' could not be found. Skipping.", exception -> null]
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier '/mchange-commons.properties' could not be found. Skipping.", exception -> null]
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier '/mchange-log.properties' could not be found. Skipping.", exception -> null]
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier '/c3p0.properties' could not be found. Skipping.", exception -> null]
com.mchange.v2.cfg.DelayedLogItem [ level -> FINE, text -> "The configuration file for resource identifier 'hocon:/reference,/application,/c3p0,/' could not be found. Skipping.", exception -> null]
12-01 23:55:14 INFO db.migrations :: Running all necessary data migrations, this may take a minute.
12-01 23:55:14 INFO db.migrations :: Finished running data migrations.
12-01 23:55:14 INFO metabase.sync-database :: Syncing H2 database 'Sample Dataset'...
12-01 23:55:14 INFO sync-database.introspect :: Introspecting schema on H2 database 'Sample Dataset' ...
12-01 23:55:14 DEBUG driver.generic-sql :: Creating new connection pool for database 1 ...
12-01 23:55:14 INFO sync-database.introspect :: [**********········································] 😞   20% Synced table 'PUBLIC.PRODUCTS'.
12-01 23:55:14 INFO sync-database.introspect :: [********************······························] 😐   40% Synced table 'PUBLIC.ORDERS'.
12-01 23:55:14 INFO sync-database.introspect :: [******************************····················] 😌   60% Synced table 'PUBLIC.PEOPLE'.
12-01 23:55:14 INFO sync-database.introspect :: [****************************************··········] 😊   80% Synced table 'PUBLIC._METABASE_METADATA'.
12-01 23:55:14 INFO sync-database.introspect :: [**************************************************] 😎  100% Synced table 'PUBLIC.REVIEWS'.
12-01 23:55:14 DEBUG sync-database.introspect :: Marking foreign key 'PUBLIC.ORDERS.USER_ID' -> 'PUBLIC.PEOPLE.ID'.
12-01 23:55:14 DEBUG sync-database.introspect :: Marking foreign key 'PUBLIC.ORDERS.PRODUCT_ID' -> 'PUBLIC.PRODUCTS.ID'.
12-01 23:55:14 DEBUG sync-database.introspect :: Marking foreign key 'PUBLIC.REVIEWS.PRODUCT_ID' -> 'PUBLIC.PRODUCTS.ID'.
12-01 23:55:14 INFO sync-database.introspect :: Introspection completed on H2 database 'Sample Dataset' (571 ms)
12-01 23:55:15 INFO sync-database.analyze :: Analyzing data in H2 database 'Sample Dataset' (this may take a while) ...
12-01 23:55:15 INFO sync-database.analyze :: [************······································] 😒   25% Analyzed table 'ORDERS'.
12-01 23:55:16 INFO sync-database.analyze :: [*************************·························] 😬   50% Analyzed table 'PEOPLE'.
12-01 23:55:16 INFO sync-database.analyze :: [*************************************·············] 😋   75% Analyzed table 'PRODUCTS'.
12-01 23:55:16 INFO sync-database.analyze :: [**************************************************] 😎  100% Analyzed table 'REVIEWS'.
12-01 23:55:16 INFO sync-database.analyze :: Analysis of H2 database 'Sample Dataset' completed (591 ms).
12-01 23:55:16 INFO metabase.sync-database :: Finished syncing H2 database 'Sample Dataset'. (2 s)
12-01 23:55:16 INFO metabase.metabot :: Starting MetaBot WebSocket monitor thread...
12-01 23:55:16 INFO metabase.core :: Metabase Initialization COMPLETE