[ https://issues.apache.org/jira/browse/HADOOP-2003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Edward Yoon updated HADOOP-2003: -------------------------------- Description: selects a subset of the tuples in a relation that satisfy a selection condition Result = σ (selection condition)(relation name) a boolean expression specified on the attributes of a specified relation a relation that has the same attributes as the source relation; * stands for the usual comparison operators '<', '<>', '<=', '>', '>=', etc * clauses can be arbitrarily connected with boolean operators AND, OR, NOT > The boolean expression can be added to the where clause of select statement > --------------------------------------------------------------------------- > > Key: HADOOP-2003 > URL: https://issues.apache.org/jira/browse/HADOOP-2003 > Project: Hadoop > Issue Type: Sub-task > Components: contrib/hbase > Affects Versions: 0.14.1 > Environment: All Environments > Reporter: Edward Yoon > Priority: Minor > Fix For: 0.16.0 > > > selects a subset of the tuples in a relation that satisfy a selection > condition > Result = σ (selection condition)(relation name) > a boolean expression specified on the attributes of a specified relation > a relation that has the same attributes as the source relation; > * stands for the usual comparison operators '<', '<>', '<=', '>', '>=', etc > * clauses can be arbitrarily connected with boolean operators AND, OR, NOT -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.