I have tried adding ;DATABASE_TO_UPPER=false
parameter, which it did work a single test, but what did the trick for me was ;CASE_INSENSITIVE_IDENTIFIERS=TRUE
.
At the I had: jdbc:h2:mem:testdb;CASE_INSENSITIVE_IDENTIFIERS=TRUE
Moreover, the problem for me was when I upgraded to Spring Boot 2.4.1
.