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is_downstream_node_attached(): avoid false negative

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If the provided connection does not have sufficient permission to read
"pg_stat_replication.state", and there is an entry for the node in
"pg_stat_replication", assume it's connected. Finer-grained detection
requires additional user permissions, nothing we can do about that.
This commit is contained in:
Ian Barwick
2020-09-01 14:28:40 +09:00
parent 13e7c679cd
commit 8d57d7e001
2 changed files with 82 additions and 16 deletions
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dbutils.h
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@@ -454,6 +454,7 @@ TimeLineHistoryEntry *get_timeline_history(PGconn *repl_conn, TimeLineID tli);
/* user/role information functions */
bool can_execute_pg_promote(PGconn *conn);
bool connection_has_pg_settings(PGconn *conn);
bool connection_has_pg_monitor_role(PGconn *conn, const char *subrole);
bool is_replication_role(PGconn *conn, char *rolname);
bool is_superuser_connection(PGconn *conn, t_connection_user *userinfo);