Commit Graph

11 Commits

Author SHA1 Message Date
0683181fef [API changed](parser) Remove merge join syntax (#9795)
Remove merge join sql and merge join node
2022-05-30 09:04:21 +08:00
90e8cda5f2 [Enhancement](Vectorized)build hash table with new thread, as non-vec… (#9290)
* [Enhancement][Vectorized]build hash table with new thread, as non-vectorized past do

edit after comments

* format code with clang format

Co-authored-by: lidongyang <dongyang.li@rateup.com.cn>
Co-authored-by: stephen <hello-stephen@qq.com>
2022-05-24 10:23:15 +08:00
c9961c9bb9 [style] clang-format all c++ code (#9305)
- sh build-support/clang-format.sh  to  clang-format all c++ code
2022-04-29 16:14:22 +08:00
71ac86b183 [improvement](join) Support join project in query engine (#8722) 2022-03-31 23:00:07 +08:00
eeae516e37 [Feature](Memory) Hook TCMalloc new/delete automatically counts to MemTracker (#8476)
Early Design Documentation: https://shimo.im/docs/DT6JXDRkdTvdyV3G

Implement a new way of memory statistics based on TCMalloc New/Delete Hook,
MemTracker and TLS, and it is expected that all memory new/delete/malloc/free
of the BE process can be counted.
2022-03-20 23:06:54 +08:00
705989d239 [improvement](VHashJoin) add probe timer (#8233) 2022-03-13 20:54:44 +08:00
6f4cf57b17 [Bug][Vectorized] Fix bug of decimal cast to double loss precision (#8221)
Co-authored-by: lihaopeng <lihaopeng@baidu.com>
2022-02-25 11:04:11 +08:00
b1e7343532 [Vectorized] [HashJoin] Opt HashJoin Performance (#8119)
Co-authored-by: lihaopeng <happenlee@hotmail.com>
2022-02-23 10:28:16 +08:00
50864aca7d [refactor] fix warings when compile with clang (#8069) 2022-02-19 11:29:02 +08:00
bdd78f20c8 [Vectorized][HashJoin] Eliminate hashjoin branch prediction (#8051)
Co-authored-by: jewisliu <jewisliu@tencent.com>
2022-02-17 19:00:26 +08:00
e1d7233e9c [feature](vectorization) Support Vectorized Exec Engine In Doris (#7785)
# Proposed changes

Issue Number: close #6238

    Co-authored-by: HappenLee <happenlee@hotmail.com>
    Co-authored-by: stdpain <34912776+stdpain@users.noreply.github.com>
    Co-authored-by: Zhengguo Yang <yangzhgg@gmail.com>
    Co-authored-by: wangbo <506340561@qq.com>
    Co-authored-by: emmymiao87 <522274284@qq.com>
    Co-authored-by: Pxl <952130278@qq.com>
    Co-authored-by: zhangstar333 <87313068+zhangstar333@users.noreply.github.com>
    Co-authored-by: thinker <zchw100@qq.com>
    Co-authored-by: Zeno Yang <1521564989@qq.com>
    Co-authored-by: Wang Shuo <wangshuo128@gmail.com>
    Co-authored-by: zhoubintao <35688959+zbtzbtzbt@users.noreply.github.com>
    Co-authored-by: Gabriel <gabrielleebuaa@gmail.com>
    Co-authored-by: xinghuayu007 <1450306854@qq.com>
    Co-authored-by: weizuo93 <weizuo@apache.org>
    Co-authored-by: yiguolei <guoleiyi@tencent.com>
    Co-authored-by: anneji-dev <85534151+anneji-dev@users.noreply.github.com>
    Co-authored-by: awakeljw <993007281@qq.com>
    Co-authored-by: taberylyang <95272637+taberylyang@users.noreply.github.com>
    Co-authored-by: Cui Kaifeng <48012748+azurenake@users.noreply.github.com>


## Problem Summary:

### 1. Some code from clickhouse

**ClickHouse is an excellent implementation of the vectorized execution engine database,
so here we have referenced and learned a lot from its excellent implementation in terms of
data structure and function implementation.
We are based on ClickHouse v19.16.2.2 and would like to thank the ClickHouse community and developers.**

The following comment has been added to the code from Clickhouse, eg:
// This file is copied from
// https://github.com/ClickHouse/ClickHouse/blob/master/src/Interpreters/AggregationCommon.h
// and modified by Doris

### 2. Support exec node and query:
* vaggregation_node
* vanalytic_eval_node
* vassert_num_rows_node
* vblocking_join_node
* vcross_join_node
* vempty_set_node
* ves_http_scan_node
* vexcept_node
* vexchange_node
* vintersect_node
* vmysql_scan_node
* vodbc_scan_node
* volap_scan_node
* vrepeat_node
* vschema_scan_node
* vselect_node
* vset_operation_node
* vsort_node
* vunion_node
* vhash_join_node

You can run exec engine of SSB/TPCH and 70% TPCDS stand query test set.

### 3. Data Model

Vec Exec Engine Support **Dup/Agg/Unq** table, Support Block Reader Vectorized.
Segment Vec is working in process.

### 4. How to use

1. Set the environment variable `set enable_vectorized_engine = true; `(required)
2. Set the environment variable `set batch_size = 4096; ` (recommended)

### 5. Some diff from origin exec engine

https://github.com/doris-vectorized/doris-vectorized/issues/294

## Checklist(Required)

1. Does it affect the original behavior: (No)
2. Has unit tests been added: (Yes)
3. Has document been added or modified: (No)
4. Does it need to update dependencies: (No)
5. Are there any changes that cannot be rolled back: (Yes)
2022-01-18 10:07:15 +08:00