why my \timing doesn't work？

Timing appears at the bottom of the result set. You can direct the output to /dev/null with "\o /dev/null", then timing will be the only response:
d2=> \timing
Timing is on.
d2=> \o /dev/null
d2=> select * from airlines;
Time: First fetch (1000 rows): 28.702 ms. All rows formatted: 69.002 ms

@Bryan_H said:

Thank you very much, I saw on the vertica academy that the duration can be displayed directly, it may be that the video has clips.

Try the following to troubleshoot the issue..

1. Start vsql with the -X option. With this option vsql do not read startup file (~/.vsqlrc)
   Repeated "\timing" might turn it on or off, so it is advised to use the explicit option "\timing on"
   For example:

  printf '\\timing on \n select sleep(1);' | vsql -X

2. Try to turn on vsql -Xi -c "select sleep(1);"
3. vsql -Xeic "select sleep(1);" > outputfile.txt 2>&1
   cat outputfile.txt
4. Try the following in your QA environment..
   SELECT SET_DATA_COLLECTOR_POLICY('RequestsIssued', 2000, 256000, '3 days');
   SELECT SET_DATA_COLLECTOR_POLICY('ExecutionSummaries', 2000, 50000, '3 days');
   SELECT SLEEP(1); -- Place your query here instead of this line
   SELECT REQUEST_DURATION_MS, transaction_id, statement_id, LEFT(REQUEST,110) AS Statement
   FROM QUERY_REQUESTS
   WHERE transaction_id=current_trans_id()
   AND (statement_id=current_statement()-1);

@mosheg said:

Thank you very much for your answer, but it seems that there are some Linux redirection and other operations, I don’t quite understand, temporarily use Bryan_H’s solution to solve the problem.