8ca4f93067
before mysql [test]>select cast(1 as DECIMALV3(16, 2)) / cast(3 as DECIMALV3(16, 2)); +-----------------------------------------------------------+ | CAST(1 AS DECIMALV3(16, 2)) / CAST(3 AS DECIMALV3(16, 2)) | +-----------------------------------------------------------+ | 0.00 | +-----------------------------------------------------------+ mysql [test]>select * from divtest; +------+------+ | id | val | +------+------+ | 3 | 5.00 | | 2 | 4.00 | | 1 | 3.00 | +------+------+ mysql [test]>select cast(1 as decimalv3(16,2)) / val from divtest; +-------------------------------------+ | CAST(1 AS DECIMALV3(16, 2)) / `val` | +-------------------------------------+ | 0 | | 0 | | 0 | +-------------------------------------+ after mysql [test]>select cast(1 as DECIMALV3(16, 2)) / cast(3 as DECIMALV3(16, 2)); +-----------------------------------------------------------+ | CAST(1 AS DECIMALV3(16, 2)) / CAST(3 AS DECIMALV3(16, 2)) | +-----------------------------------------------------------+ | 0.33 | +-----------------------------------------------------------+ mysql [test]>select cast(1 as decimalv3(16,2)) / val from divtest; +-------------------------------------+ | CAST(1 AS DECIMALV3(16, 2)) / `val` | +-------------------------------------+ | 0.250000 | | 0.200000 | | 0.333333 | +-------------------------------------+ This is because in the previous code, the constant 1.000 would be transformed into 1. remove "ReduceType
# 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