Mr-hangge commented on issue #3117:
URL: https://github.com/apache/flink-cdc/issues/3117#issuecomment-2823374856
// 2. 获取 Changelog 流并过滤 DELETE 事件
val deleteStream = tEnv
.toChangelogStream(tEnv.from("ACT_RU_TASK")) // 获取原始变更流
.filter(row => row.getKind == RowKind.DELETE)
.map { row: Row =>
val id = row.getFieldAs[String]("ID_")
("ID_", id) // 返回 (字段名, 主键值)
}(TypeInformation.of(classOf[(String, String)]))
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