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Show xid and xmin in pg_stat_activity and pg_stat_replication.

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Christian Kruse, reviewed by Andres Freund and myself, with further
minor adjustments by me.
This commit is contained in:
Robert Haas
2014-02-25 12:34:04 -05:00
parent 278c94209b
commit dd1a3bccca
10 changed files with 149 additions and 20 deletions
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29
src/include/pgstat.h
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@ -735,6 +735,34 @@ typedef struct PgBackendStatus
char *st_activity;
} PgBackendStatus;
/* ----------
* LocalPgBackendStatus
*
* When we build the backend status array, we use LocalPgBackendStatus to be
* able to add new values to the struct when needed without adding new fields
* to the shared memory. It contains the backend status as a first member.
* ----------
*/
typedef struct LocalPgBackendStatus
{
/*
* Local version of the backend status entry.
*/
PgBackendStatus backendStatus;
/*
* The xid of the current transaction if available, InvalidTransactionId
* if not.
*/
TransactionId backend_xid;
/*
* The xmin of the current session if available, InvalidTransactionId
* if not.
*/
TransactionId backend_xmin;
} LocalPgBackendStatus;
/*
* Working state needed to accumulate per-function-call timing statistics.
*/
@ -907,6 +935,7 @@ extern void pgstat_send_bgwriter(void);
extern PgStat_StatDBEntry *pgstat_fetch_stat_dbentry(Oid dbid);
extern PgStat_StatTabEntry *pgstat_fetch_stat_tabentry(Oid relid);
extern PgBackendStatus *pgstat_fetch_stat_beentry(int beid);
extern LocalPgBackendStatus *pgstat_fetch_stat_local_beentry(int beid);
extern PgStat_StatFuncEntry *pgstat_fetch_stat_funcentry(Oid funcid);
extern int pgstat_fetch_stat_numbackends(void);
extern PgStat_ArchiverStats *pgstat_fetch_stat_archiver(void);