[SailfishDevel] QSqlDatabase cannot create db file when deployed as rpm package

[Stockona]

When I switched to "Deploy by copying binary", the database is created and connected correctly.
Changing the deployment to rpm package the same code just failed with database error message "out of memory Error opening database."

I checked in Emulator terminal and the database file was not created at all. Is this a permission issue? How do I work around this?
Thanks in advance!
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