Resolve security_level SQL error caused by duplicate MEMBER_TYPE column in Hibernate 6

Ya: 16 Aprili 2026, 03:22 UTC
Mwandishi: Kamo
Ahadi ya: f81e6ed

Member.java mapped MEMBER_TYPE both as @DiscriminatorColumn and as an explicit @Column field. Hibernate 6 selected the column twice in the parent table projection, causing a column-count drift that pushed security_level into the child table (member_team_member) SELECT — where it does not exist. Fix: remove the @Column JPA mapping from memberType and derive it at runtime via instanceof in a custom getMemberType() getter. MemberRepository's JPQL query is updated to use TYPE(m) for discriminator-based filtering, with a default bridge method preserving the existing API signature for all callers.

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