tidb数据库清理数据后空间不减少问题

我按照这个把cdc删除了, “gc_safe_point”: 450204182675718148,这个时间还是没推进,[tidb@test4 ~]$ curl http://192.168.180.58:2379/pd/api/v1/gc/safepoint
{
“service_gc_safe_points”: [
{
“service_id”: “gc_worker”,
“expired_at”: 9223372036854775807,
“safe_point”: 464002041091194880
}
],
“min_service_gc_safe_point”: 464002041091194880,
“gc_safe_point”: 450204182675718148
},safe_point和 min_service_gc_safe_point是正常的

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