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| author | Simon Riggs <simon@2ndQuadrant.com> | 2016-01-12 07:54:52 +0000 |
|---|---|---|
| committer | Simon Riggs <simon@2ndQuadrant.com> | 2016-01-12 07:54:52 +0000 |
| commit | e63bb4549a2f47b86de9fc21c9f8b00440f34f99 (patch) | |
| tree | 79c4138b111ad43caf0a4c7a77d1261b63e49b05 /src/backend/access/transam/xlogfuncs.c | |
| parent | 1e29e6324ca7d52eb751c8d63881d1f7c44e3921 (diff) | |
| download | postgresql-e63bb4549a2f47b86de9fc21c9f8b00440f34f99.tar.gz postgresql-e63bb4549a2f47b86de9fc21c9f8b00440f34f99.zip | |
Add new user fn pg_current_xlog_flush_location()
Tomas Vondra, reviewed by Michael Paquier and Amit Kapila
Minor edits by me
Diffstat (limited to 'src/backend/access/transam/xlogfuncs.c')
| -rw-r--r-- | src/backend/access/transam/xlogfuncs.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/backend/access/transam/xlogfuncs.c b/src/backend/access/transam/xlogfuncs.c index 42168985e0c..31cbb01ce47 100644 --- a/src/backend/access/transam/xlogfuncs.c +++ b/src/backend/access/transam/xlogfuncs.c @@ -216,6 +216,27 @@ pg_current_xlog_insert_location(PG_FUNCTION_ARGS) } /* + * Report the current WAL flush location (same format as pg_start_backup etc) + * + * This function is mostly for debugging purposes. + */ +Datum +pg_current_xlog_flush_location(PG_FUNCTION_ARGS) +{ + XLogRecPtr current_recptr; + + if (RecoveryInProgress()) + ereport(ERROR, + (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE), + errmsg("recovery is in progress"), + errhint("WAL control functions cannot be executed during recovery."))); + + current_recptr = GetFlushRecPtr(); + + PG_RETURN_LSN(current_recptr); +} + +/* * Report the last WAL receive location (same format as pg_start_backup etc) * * This is useful for determining how much of WAL is guaranteed to be received |