Riza Suminto has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/23279 )

Change subject: IMPALA-13237: [Patch 8] - OpenTelemetry Traces for DML/DDL 
Queries and Handle Leading Comments
......................................................................


Patch Set 19:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/23279/19/be/src/observe/otel.cc
File be/src/observe/otel.cc:

http://gerrit.cloudera.org:8080/#/c/23279/19/be/src/observe/otel.cc@109
PS19, Line 109: static const regex query_newline(
              :     
"(select|alter|compute|create|delete|drop|insert|invalidate|update|with)\\s*"
              :     "(\n|\\s*\\\\*\\/)", regex::icase | regex::optimize | 
regex::nosubs);
Have you thought about replacing new lines with space instead (after dropping 
leading comment lines)?
Thus, the input sql will always be in single line.


http://gerrit.cloudera.org:8080/#/c/23279/19/be/src/observe/otel.cc@161
PS19, Line 161:     if (boost::algorithm::istarts_with(sql, "/*")) {
              :       // Handle leading inline comments
              :       size_t end_comment = sql.find("*/")
How this is handled?

  /*/ this is comment */ SELECT 1;



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ie9e83d7f761f3d629f067e0a0602224e42cd7184
Gerrit-Change-Number: 23279
Gerrit-PatchSet: 19
Gerrit-Owner: Jason Fehr <[email protected]>
Gerrit-Reviewer: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Jason Fehr <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Reviewer: gaurav singh <[email protected]>
Gerrit-Comment-Date: Thu, 28 Aug 2025 20:59:07 +0000
Gerrit-HasComments: Yes

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