| From: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
|---|---|
| To: | Andrey Borodin <amborodin86(at)gmail(dot)com> |
| Cc: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, sfrost(at)snowman(dot)net, peter(dot)eisentraut(at)enterprisedb(dot)com, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: psql \watch 2nd argument: iteration count |
| Date: | 2023-03-08 18:49:44 |
| Message-ID: | 20230308184944.GA3552001@nathanxps13 |
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| Lists: | pgsql-hackers |
+1 for adding an iteration count argument to \watch.
+ char *opt_end;
+ sleep = strtod(opt, &opt_end);
+ if (sleep <= 0 || *opt_end)
+ {
+ pg_log_error("Watch period must be positive number, but argument is '%s'", opt);
+ free(opt);
+ resetPQExpBuffer(query_buf);
+ return PSQL_CMD_ERROR;
+ }
Is there any reason to disallow 0 for the sleep argument? I often use
commands like "\watch .1" to run statements repeatedly with very little
time in between, and I'd use "\watch 0" instead if it was available.
--
Nathan Bossart
Amazon Web Services: https://aws.amazon.com
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