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Rename functions which return an LSN for clarity

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This commit is contained in:
Ian Barwick
2019-02-06 09:30:45 +09:00
parent cce8b76171
commit cd3312496e
5 changed files with 21 additions and 11 deletions
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20
dbutils.c
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@@ -4551,9 +4551,16 @@ reset_voting_status(PGconn *conn)
/* replication status functions */
/* ============================ */
/*
* Returns the current LSN on the primary.
*
* This just executes "pg_current_wal_lsn()".
*
* Function "get_node_current_lsn()" below will return the latest
* LSN regardless of recovery state.
*/
XLogRecPtr
get_current_wal_lsn(PGconn *conn)
get_primary_current_lsn(PGconn *conn)
{
PGresult *res = NULL;
XLogRecPtr ptr = InvalidXLogRecPtr;
@@ -4577,6 +4584,7 @@ get_current_wal_lsn(PGconn *conn)
return ptr;
}
XLogRecPtr
get_last_wal_receive_location(PGconn *conn)
{
@@ -4602,9 +4610,11 @@ get_last_wal_receive_location(PGconn *conn)
return ptr;
}
/*
* Returns the latest LSN for the node regardless of recovery state.
*/
XLogRecPtr
get_current_lsn(PGconn *conn)
get_node_current_lsn(PGconn *conn)
{
PQExpBufferData query;
PGresult *res = NULL;
@@ -4678,7 +4688,7 @@ get_current_lsn(PGconn *conn)
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_db_error(conn, query.data, _("unable to execute get_current_lsn()"));
log_db_error(conn, query.data, _("unable to execute get_node_current_lsn()"));
}
else if (!PQgetisnull(res, 0, 0))
{