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agg_state is agg intermediate state, detail see state combinator: https://doris.apache.org/zh-CN/docs/dev/sql-manual/sql-functions/combinators/state this support agg function roll up as following +---------------------+---------------------------------------------+---------------------+ | query | materialized view | roll up | | ------------------- | ------------------------------------------- | ------------------- | | agg_funtion() | agg_funtion_unoin() or agg_funtion_state() | agg_funtion_merge() | | agg_funtion_unoin() | agg_funtion_unoin() or agg_funtion_state() | agg_funtion_union() | | agg_funtion_merge() | agg_funtion_unoin() or agg_funtion_state() | agg_funtion_merge() | +---------------------+---------------------------------------------+---------------------+ for example which can be rewritten by mv sucessfully as following MV defination is ``` select o_orderstatus, l_partkey, l_suppkey, sum_union(sum_state(o_shippriority)), group_concat_union(group_concat_state(l_shipinstruct)), avg_union(avg_state(l_linenumber)), max_by_union(max_by_state(l_shipmode, l_suppkey)), count_union(count_state(l_orderkey)), multi_distinct_count_union(multi_distinct_count_state(l_shipmode)) from lineitem left join orders on lineitem.l_orderkey = o_orderkey and l_shipdate = o_orderdate group by o_orderstatus, l_partkey, l_suppkey; ``` Query is ``` select o_orderstatus, l_suppkey, sum(o_shippriority), group_concat(l_shipinstruct), avg(l_linenumber), max_by(l_shipmode,l_suppkey), count(l_orderkey), multi_distinct_count(l_shipmode) from lineitem left join orders on l_orderkey = o_orderkey and l_shipdate = o_orderdate group by o_orderstatus, l_suppkey; ```
# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either express or implied. See the License for the # specific language governing permissions and limitations # under the License. # fe-common This module is used to store some common classes of other modules. # spark-dpp This module is Spark DPP program, used for Spark Load function. Depends: fe-common # fe-core This module is the main process module of FE. Depends: fe-common, spark-dpp