为什么没有生成/插入默认值?

我刚换了一张桌子 place claimed 这样地:

ALTER TABLE place
    ADD COLUMN IF NOT EXISTS claimed boolean NOT NULL DEFAULT false;

false

但是,当我创建新记录时:

this.placeRepository.save(place);

我得到:

ERROR: null value in column "claimed" violates not-null constraint

或作为一个整体:

2018-09-21 21:56:47.902  WARN 30087 --- [nio-8443-exec-9] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 0, SQLState: 23502
2018-09-21 21:56:47.903 ERROR 30087 --- [nio-8443-exec-9] o.h.engine.jdbc.spi.SqlExceptionHelper   : ERROR: null value in column "claimed" violates not-null constraint
  Detail: Failing row contains (17, 2018-09-21 19:56:47.885, 2018-09-21 19:56:47.885, ChIJj15CRtukokcRcvSmyJCKGU4, 49.7759560000000008, 9.57715980000000044, Wertheim Village, Almosenberg, Wertheim, null).
2018-09-21 21:56:47.908  INFO 30087 --- [nio-8443-exec-9] m.a.s.e.CustomRestExceptionHandler       : org.springframework.dao.DataIntegrityViolationException
2018-09-21 21:56:47.908  INFO 30087 --- [nio-8443-exec-9] m.a.s.e.CustomRestExceptionHandler       : org.hibernate.exception.ConstraintViolationException

null 价值?

我想这应该不重要,但只是为了确保我也补充说 nullable = false

@Column(nullable = false)
private Boolean claimed;