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Add simple VACUUM progress reporting.

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There's a lot more that could be done here yet - in particular, this
reports only very coarse-grained information about the index vacuuming
phase - but even as it stands, the new pg_stat_progress_vacuum can
tell you quite a bit about what a long-running vacuum is actually
doing.

Amit Langote and Robert Haas, based on earlier work by Vinayak Pokale
and Rahila Syed.
This commit is contained in:
Robert Haas
2016-03-15 13:31:18 -04:00
parent 0e9b89986b
commit c16dc1aca5
8 changed files with 394 additions and 1 deletions
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2
src/include/pgstat.h
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@ -978,6 +978,8 @@ extern const char *pgstat_get_crashed_backend_activity(int pid, char *buffer,
extern void pgstat_progress_start_command(ProgressCommandType cmdtype,
Oid relid);
extern void pgstat_progress_update_param(int index, int64 val);
extern void pgstat_progress_update_multi_param(int nparam, const int *index,
const int64 *val);
extern void pgstat_progress_end_command(void);
extern PgStat_TableStatus *find_tabstat_entry(Oid rel_id);