OK thanks for clarifying. I guess it is one of major features in streaming area and nice to add, but also agree it would require huge investigation.
2018년 10월 31일 (수) 오전 8:06, Michael Armbrust <mich...@databricks.com>님이 작성: > Agree. Just curious, could you explain what do you mean by "negation"? >> Does it mean applying retraction on aggregated? >> > > Yeah exactly. Our current streaming aggregation assumes that the input is > in append-mode and multiple aggregations break this. >
