Okay, then monospace with "()" after the method name is a good way to show
them: parseJoinCondition() and getQualifiedAlias() ... but I only found
the latter pluralized, instead of singular, so should it be
getQualifiedAliases() or am I missing something?
trunk> *grep -nr 'getQualifiedAlias' ./ql/src/java/* | grep -v 'svn'*
>
> ./ql/src/java/org/apache/hadoop/hive/ql/ppd/OpProcFactory.java:221: *
>> the comments for getQualifiedAliases function.
>
> ./ql/src/java/org/apache/hadoop/hive/ql/ppd/OpProcFactory.java:230:
>> Set<String> aliases = getQualifiedAliases((JoinOperator) nd, owi
>
> ./ql/src/java/org/apache/hadoop/hive/ql/ppd/OpProcFactory.java:242:
>> // be pushed down per getQualifiedAliases
>
> ./ql/src/java/org/apache/hadoop/hive/ql/ppd/OpProcFactory.java:471:
>> private Set<String> getQualifiedAliases(JoinOperator op, RowResolver
>> rr) {
>
>
>
-- Lefty
On Mon, Dec 9, 2013 at 2:12 PM, Harish Butani <hbut...@hortonworks.com>wrote:
> Looks good. Thanks for doing this.
>
> Minor point:
>
> *Rule 1:* During *QBJoinTree* construction in Plan Gen, the parse Join
> Condition logic applies this rule.
> *Rule 2:* During *JoinPPD* (Join Predicate Pushdown) the get Qualified
> Alias logic applies this rule.
>
> FYI 'parseJoinCondition' and 'getQualifiedAlias' are methods in the
> SemanticAnalyzer and JoinPPD classes respectively.
> Writing these as separate words maybe confusing. You are better judge of
> how to represent this(quoted/bold etc.)
>
> regards,
> Harish.
>
>
> On Dec 9, 2013, at 1:52 AM, Lefty Leverenz <leftylever...@gmail.com>
> wrote:
>
> The Outer Join Behavior
> wikidoc<https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior
> >is
>
> done, with links from the Design
> Docs <https://cwiki.apache.org/confluence/display/Hive/DesignDocs> page
> and
> the Joins doc<
> https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Joins#LanguageManualJoins-JoinOptimization
> >
> .
>
> Harish (or anyone else) would you please review the changes I made to
> the definition
> for "Null Supplying
> table"<
> https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior#OuterJoinBehavior-Definitions
> >
>
> ?
>
> -- Lefty
>
>
> On Mon, Dec 2, 2013 at 6:46 PM, Thejas Nair <the...@hortonworks.com>
> wrote:
>
> :)
>
>
> On Mon, Dec 2, 2013 at 6:18 PM, Lefty Leverenz <leftylever...@gmail.com>
> wrote:
>
> Easy as 3.14159.... (I can take a hint.)
>
> -- Lefty
>
>
> On Mon, Dec 2, 2013 at 5:34 PM, Thejas Nair <the...@hortonworks.com>
>
> wrote:
>
>
> FYI, Harish has a written a very nice doc describing predicate push
> down rules for join. I have attached it to the design doc page. It
> will be very useful for anyone looking at joins.
>
>
>
> https://cwiki.apache.org/confluence/download/attachments/27362075/OuterJoinBehavior.html
>
>
> (any help converting it to wiki format from html is welcome!).
>
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