This was broken in commit
53dbc27c62d8e1b6c5253feba04a5094cb8fe046, which
introduced unlogged tables. Fortunately, as debugging tools go, this one
is pretty cheap, which is probably why it took nine months for someone to
notice, but it's not intended to be enabled by default, so revert.
Noted by Fujii Masao.
* Enable debugging print statements for WAL-related operations; see
* also the wal_debug GUC var.
*/
-#define WAL_DEBUG
+/* #define WAL_DEBUG */
/*
* Enable tracing of resource consumption during sort operations;