You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2017/02/09 01:07:41 UTC
[jira] [Created] (DRILL-5247) Text form of EXPLAIN statement does
not have same information as profile
Paul Rogers created DRILL-5247:
----------------------------------
Summary: Text form of EXPLAIN statement does not have same information as profile
Key: DRILL-5247
URL: https://issues.apache.org/jira/browse/DRILL-5247
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.9.0
Reporter: Paul Rogers
Priority: Minor
Create as simple query. Run it and view the "physical plan" in the Web UI or the profile JSON. That plan contains a rich set of information about operator costs and so on.
Now, with the same query, execute an EXPLAIN statement. The resulting plan looks like the one in the profile, but lacks the cost detail. (See below.)
Since the cost detail comes from the planner, and is essential to understanding why a plan was chosen, the information should appear in the EXPLAIN output. (After all, the output is supposed to EXPLAIN the plan...)
Example of EXPLAIN output:
{code}
00-00 Screen
00-01 Project(id_i=[$0], name_s20=[$1])
00-02 SelectionVectorRemover
00-03 Filter(condition=[=($0, 10)])
00-04 Scan(groupscan=[MockGroupScanPOP [url=null, readEntries=[MockScanEntry [records=10000, columns=[MockColumn [minorType=INT, name=id_i, mode=REQUIRED], MockColumn [minorType=VARCHAR, name=name_s20, mode=REQUIRED]]]]]])
{code}
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)