[GLUTEN-3951][CH]Bug fix floor diff #3956
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
Run Gluten Clickhouse CI |
2 similar comments
|
Run Gluten Clickhouse CI |
|
Run Gluten Clickhouse CI |
KevinyhZou
force-pushed
the
bug_fix_floor_diff
branch
from
8d21470 to
d4852e4
Compare
|
Run Gluten Clickhouse CI |
KevinyhZou
force-pushed
the
bug_fix_floor_diff
branch
from
d4852e4 to
22f8c28
Compare
|
Run Gluten Clickhouse CI |
KevinyhZou
force-pushed
the
bug_fix_floor_diff
branch
from
22f8c28 to
c8c3427
Compare
|
Run Gluten Clickhouse CI |
3 similar comments
|
Run Gluten Clickhouse CI |
|
Run Gluten Clickhouse CI |
|
Run Gluten Clickhouse CI |
KevinyhZou
force-pushed
the
bug_fix_floor_diff
branch
from
300911b to
fa11505
Compare
|
Run Gluten Clickhouse CI |
1 similar comment
|
Run Gluten Clickhouse CI |
taiyang-li
reviewed
Dec 25, 2023
| @@ -180,6 +179,7 @@ static const std::map<std::string, std::string> SCALAR_FUNCTIONS | |||
| {"add_months", "addMonths"}, | |||
| {"date_trunc", "dateTrunc"}, | |||
| {"floor_datetime", "dateTrunc"}, | |||
| {"floor", "spark_floor"}, | |||
|
Run Gluten Clickhouse CI |
2 similar comments
|
Run Gluten Clickhouse CI |
|
Run Gluten Clickhouse CI |
KevinyhZou
force-pushed
the
bug_fix_floor_diff
branch
from
d1718e9 to
e9ce76f
Compare
|
Run Gluten Clickhouse CI |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What changes were proposed in this pull request?
(Please fill in changes proposed in this fix)
(Fixes: #3951)
How was this patch tested?
TEST BY UT
端到端性能测试
数据类型为Int64，表结构 test_tbl(d Int64), 测试SQL:
select count(1) from test_tbl where floor(d) > 1数据总量3000W， 测试三次PR 改动前：1.13s, 0.92s, 0.985s
PR 改动后： 1.064s， 1.077s, 0.984s
数据类型为Float64， 表结构为test_tbl(d float64) , 测试SQL
select count(1) from test_tbl where floor(d) > 1数据总量3000W， 测试三次PR 改动前： 1.417s， 1.386s 1.426s
PR 改动后：1.568s， 1.476s， 1.508s
可见对于Int64类型来说，改动前后性能基本持平；对于float64类型来说，大约有7.6%的性能回退，主要是来自于针对数据中可能出现NaN 以及INF 的情况进行了判断和赋值。
benchmark 性能测试
使用开发的
benchmark_spark_floor_function.cpp来测试Int64类型测试
对于CH 的Floor函数, 结果如下
对于新开发的Floor函数，结果如下
Float64类型测试
对于CH的Floor函数，结果如下
对于新开发的Floor函数，结果如下
可见对于Int64，大概有 3%左右的回退，对于Float64类型 大概有70%左右的回退
Spark UT 关于Floor 函数的测试，会通过
org.apache.spark.sql.GlutenMathFunctionsSuite这个测试来完成，已开启