multidb support

_tools/db/migrate.txt

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+python3 -m venv venv_migrate
+source venv_migrate/bin/activate  
+pip install sqlalchemy psycopg2-binary dotenv 
+docker compose --profile pgsql up -d --build
+PYTHONPATH=. python3 _tools/db/migrate_sqlite_to_pgsql.py 
+rm -rf venv_migrate
+
+# reset wszystkich sekwencji w pgsql
+docker exec -it pgsql-db psql -U zbiorki -d zbiorki
+
+
+DO $$
+DECLARE
+    r RECORD;
+BEGIN
+    FOR r IN
+        SELECT 
+            c.relname AS seq_name,
+            t.relname AS table_name,
+            a.attname AS column_name
+        FROM 
+            pg_class c
+        JOIN 
+            pg_depend d ON d.objid = c.oid
+        JOIN 
+            pg_class t ON d.refobjid = t.oid
+        JOIN 
+            pg_attribute a ON a.attrelid = t.oid AND a.attnum = d.refobjsubid
+        WHERE 
+            c.relkind = 'S'
+            AND d.deptype = 'a'
+    LOOP
+        EXECUTE format(
+            'SELECT setval(%L, COALESCE((SELECT MAX(%I) FROM %I), 1), true)',
+            r.seq_name, r.column_name, r.table_name
+        );
+    END LOOP;
+END$$;