impala-reviews mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Thomas Tauber-Marshall (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-4252: [DOCS] Document min/max filters for Kudu tables
Date Tue, 09 Jan 2018 23:44:25 GMT
Thomas Tauber-Marshall has posted comments on this change. ( http://gerrit.cloudera.org:8080/8986
)

Change subject: IMPALA-4252: [DOCS] Document min/max filters for Kudu tables
......................................................................


Patch Set 1:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/8986/1/docs/topics/impala_runtime_filtering.xml
File docs/topics/impala_runtime_filtering.xml:

http://gerrit.cloudera.org:8080/#/c/8986/1/docs/topics/impala_runtime_filtering.xml@173
PS1, Line 173: . (The probability-based aspects means that the
             :         filter
Maybe note here that bloom filters are only for HDFS target scans, and that we do min-max
for Kudu scans.

Of course, either type might include some non-matching values.


http://gerrit.cloudera.org:8080/#/c/8986/1/docs/topics/impala_runtime_filtering.xml@335
PS1, Line 335: 
Note here: setting EXPLAIN_LEVEL=2 will display the type of filter in the format:
filter_id[type] -> table
filter_id[type] <- table
where type is either bloom or min_max



-- 
To view, visit http://gerrit.cloudera.org:8080/8986
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I15d8c952ab5b90e89fdd57640dfb4da882f7ecb2
Gerrit-Change-Number: 8986
Gerrit-PatchSet: 1
Gerrit-Owner: John Russell <jrussell@cloudera.com>
Gerrit-Reviewer: Thomas Tauber-Marshall <tmarshall@cloudera.com>
Gerrit-Reviewer: Todd Lipcon <todd@apache.org>
Gerrit-Comment-Date: Tue, 09 Jan 2018 23:44:25 +0000
Gerrit-HasComments: Yes

Mime
  • Unnamed multipart/alternative (inline, 8-Bit, 0 bytes)
View raw message