Integrating Compression and Execution in Column-Oriented Database Systems報告
以列為導向的方式儲存資料大大增加磁碟上相鄰記錄的相似性和用於壓縮的機會。壓縮許多相鄰元組，可以同時降低每一元組成本和CPU和空間開銷。本文討論瞭如何用壓縮子系統擴充套件C-Store（面向列的資料庫系統）。我們展示了面向列的資料庫系統的壓縮方案。然後，我們評估一套壓縮方案，並表明最佳方案不僅取決於資料的屬性，而且取決於查詢負載的性質。
列式資料庫系統資料壓縮特點
In summary, this paper shows that significant database performance gains can be had by implementing light-weight
compression schemes and operators that work directly on compressed data.
本文展示了 通過對壓縮的資料進行輕量級的壓縮方案和操作，將會使資料庫獲得良好的收益。根據一系列的基礎屬性，我們把壓縮方案進行了歸類，使我們能夠直接擴充套件C-Store（面向列的資料庫），而不用再針對每一組壓縮方案新增額外的程式碼。此外，我們專注於列式儲存的資料壓縮，使我們證明了 列式儲存的壓縮後的資料 比 行式壓縮後的資料 效能更好。
相關推薦
Integrating Compression and Execution in Column-Oriented Database Systems報告
以列為導向的方式儲存資料大大增加磁碟上相鄰記錄的相似性和用於壓縮的機會。壓縮許多相鄰元組，可以同時降低每一元組成本和CPU和空間開銷。本文討論瞭如何用壓縮子系統擴充套件C-Store（面向列的資料庫系統）。我們展示了面向列的資料庫系統的壓縮方案。然後，我們評估一套壓縮方案，並
解決mysql報錯：- Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'information_schema.PROFILING.SEQ'
_for tran contains column schema mysql eat table express mysql執行報錯： - Expression #1 of ORDER BY clause is not in GROUP BY clause and cont
Mysql解決SELECT list is not in GROUP BY clause and contains nonaggregated column 問題
轉自：https://blog.csdn.net/u011676300/article/details/79564446 在使用GROUP BY對Mysql的資料表進行查詢時如果出現以下錯誤 select * from user group by age; ERROR 1055 (420
記錄一次mysql由5.6升級到5.7出現的異常---Expression #23 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'c.commentCount' which is
### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Expression #23 of SELECT list is not in GROUP BY clause an
Quick and Easy Installation of Oracle Database 12c on Oracle Linux in Oracle VM VirtualBox
defaults ner aps git clone zip del sel locate bind 發貼人 Sergio-Oracle 於2018-4-18 23:10:15在Oracle Linux Introduction How Does This
Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'userinfo
說明情況: 首先我是在Linux伺服器上新裝了一個mysql , 原先版本為5.7.22 , 現在不小心裝成了5.7.16 , 專案啟動是時候跳轉首頁不顯示資料 , 後臺開始報錯 : 如下 , 具體錯誤bug忘了複製截圖 , 只保留了
【問題解決】Expression #30 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'zxj
問題描述： 安裝了mysql5.7，用group by 查詢時丟擲如下異常： Expression #30 of SELECT list is not in GROUP BY clause and
mysql SELECT list is not in GROUP BY clause and contains nonaggregated column
安裝了mysql5.7，用group by 查詢時丟擲如下異常： Expression #3 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'userinfo.t_lon
Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'userinfo.
執行sql set global sql_mode=‘STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGIN
Nobel Prize in Economics 2018: Integrating innovation and climate with economic growth
Integrating innovation and climate with economic growth William D. Nordhaus and Paul M. Romer have designed methods for addressing some of our time's most
MySQL: Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'sss
今天在執行MySQL中sql語句的時候報錯了，執行的sql語句： SELECT prov_desc, area_desc, month_id, MAX(total_
mysql問題解決SELECT list is not in GROUP BY clause and contains nonaggregated column
好的 sql_mode start nbsp which pre 發生 cti agg 今天在Ubuntu下的部署項目，發現一些好好的列表頁面發生 1055:Expression #11 of SELECT list is not in GROUP BY clause
[Preact] Use State and Props in the Component Render Function
cnblogs use method nic imp ima rop component end Preact offers, in addition to the regular component API from React, the ability to acces
Wrong codepoints for non-ASCII characters inserted in UTF-8 database using CLP
valid -i ant ring project you stat env see Technote (troubleshooting) Problem(Abstract) During insert from the CLP there is no codepage
Relationship between frequency and spatial in digital images
log 兩個 表示 title cal .com 關系 show tla 今天又復習了一遍<<Digital Image Processing>>的第四章，為了加深對頻域的理解，我自己用PS畫了一張圖。如下： 然後做FFT，得到頻譜圖如下：
About the diffrence of wait timed_wait and block in java
@override stack util except str void rgs dex interrupt import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.Reentra
【轉】Redundancy and Latency in Structured Buffer Use
list set actual about ast oat efi macros cte From：https://developer.nvidia.com/content/redundancy-and-latency-structured-buffer-use In a
Authentication and Authorization in ASP.NET Web API
module to server -h alter prop strong bar isa som ?You‘ve created a web API, but now you want to control access to it. In this series o
Harvard數據庫課程CS 265: Research Topics in Database Systems
onf practice after oda its obj core alt currency CS 265: Research Topics in Database Systems AnnouncementsQuiz 3 will be posted. Good luc
解決author波浪線Spellchecker inspection helps locate typos and misspelling in your code, comments and literals, and fix them in one click
博客 翻譯 cli 修復 and idea tro alt 拼寫檢查 自從把默認的頭註釋的author改成自己的名字以後越看越順眼，但是發現名字下面一直有個波浪線，強迫癥簡直不能忍。 然後當你把鼠標放上去，再點擊提示上的“more”,會看到下面的提示： Spellchec