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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-hadoop Wiki] Trivial Update of "Hbase/ShellPlans" by udanax
Date Wed, 01 Aug 2007 03:36:45 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-hadoop Wiki" for change notification.

The following page has been changed by udanax:
http://wiki.apache.org/lucene-hadoop/Hbase/ShellPlans

------------------------------------------------------------------------------
  ||Group ||<99%>'''Group''' tuples by value of an attribute and apply aggregate function
independently to each group of tuples.[[BR]]'''Aggregate Functions''' : ~-''AVG( attribute
), SUM( attribute ), COUNT( attribute ), MIN( attribute ), MAX( attribute )''-~[[BR]][[BR]]~-''A
= Table('movieLog_table);[[BR]]B = A.Group('studioName', MIN('year'));''-~||
  ||Sort ||<99%>'''Sort''' of tuples(rows) of R, ordered according to columnfamilies
on columnfamily-list[[BR]][[BR]]~-''A = Table('movieLog_table');[[BR]]B = Sort by ('length');''-~||
  
- === Examples ===
+ === Relational Operations Examples ===
+ 
+ ||Row Key ||<-12>Column Families ||
+ ||<rowbgcolor="#ececec">title ||<-2> year ||<-2>length ||<-2>inColor
||<-2> studioName ||<-2> vote ||<-2> producer ||
+ ||Star Wars ||year: || 1977 ||length: || 124 ||inColor: || true ||studioName: || Fox ||
vote:''user_1'' || 5 || producer: || George Lucas ||
+ || || || || || || || || || || vote:''user_2'' || 2 || || ||
+ ||Mighty Ducks ||year: || 1991 ||length: || 104 ||inColor: || true ||studioName: || Disney
|| vote:''user_1'' || 2 || producer: || Blair Peters ||
+ || || || || || || || || || || vote:''user_3'' || 4 || || ||
+ ||Wayne's World ||year: || 1992 ||length: || 95 ||inColor: || true ||studioName: || Paramount
|| vote:''user_2'' || 3 || producer: || Penelope Spheeris ||
+ || || || || || || || || || || vote:''user_3'' || 4 || || ||
  
  '''~+^π^+~'''~-title-~,~-year-~,~-length-~'''~+^(movieLog_table)^+~'''
  
@@ -106, +115 @@

  
  ----
  == Matrix Operators ==
-  * work in progress
+ 
  
  ||<bgcolor="#ececec">'''Operator''' ||<bgcolor="#ececec">'''Explanation''' ||
  ||Addition ||<99%>... ||
@@ -117, +126 @@

  ||permutation ||<99%>... ||
  ||norms ||<99%>... ||
  
+ === Factorizations and decompositions ===
+ 
- ||<bgcolor="#ececec">'''Operator''' ||<bgcolor="#ececec">'''Explanation''' ||
+ ||<bgcolor="#ececec">'''Function''' ||<bgcolor="#ececec">'''Explanation''' ||
  ||LU ||<99%>... ||
  ||QR ||<99%>... ||
  ||Cholesky ||<99%>... ||
@@ -128, +139 @@

  ||Determinant ||<99%>... ||
  ||Rank ||<99%>... ||
  
+ === Column-Wise Data Analysis ===
+ 
+ ||<bgcolor="#ececec">'''Function''' ||<bgcolor="#ececec">'''Explanation''' ||
+ ||Frequencies ||<99%>... ||
+ ||Sorting ||<99%>... ||
+ ||Covariance ||<99%>... ||
+ 

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