Improve code comments

As of 0c2c81b403db420bfce36f168887db72932dbf09, the replication
parameter in libpq is no longer "deliberately undocumented".

diff --git a/src/backend/replication/libpqwalreceiver/libpqwalreceiver.c b/src/backend/replication/libpqwalreceiver/libpqwalreceiver.c
index ec37377efe5b2501151fff39ae937e69fbbc9f47..e4d261bd79302febcbd18f4b9ba519a3ad92c4b4 100644 (file)
--- a/src/backend/replication/libpqwalreceiver/libpqwalreceiver.c
+++ b/src/backend/replication/libpqwalreceiver/libpqwalreceiver.c
@@ -128,10 +128,7 @@ libpqrcv_connect(const char *conninfo, bool logical, const char *appname,
 
    /*
     * We use the expand_dbname parameter to process the connection string (or
-    * URI), and pass some extra options. The deliberately undocumented
-    * parameter "replication=true" makes it a replication connection. The
-    * database name is ignored by the server in replication mode, but specify
-    * "replication" for .pgpass lookup.
+    * URI), and pass some extra options.
     */
    keys[i] = "dbname";
    vals[i] = conninfo;
@@ -139,6 +136,10 @@ libpqrcv_connect(const char *conninfo, bool logical, const char *appname,
    vals[i] = logical ? "database" : "true";
    if (!logical)
    {
+       /*
+        * The database name is ignored by the server in replication mode, but
+        * specify "replication" for .pgpass lookup.
+        */
        keys[++i] = "dbname";
        vals[i] = "replication";
    }