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-rw-r--r--src/port/exec.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/port/exec.c b/src/port/exec.c
index 8ce7c618ffc..077ac58b2b2 100644
--- a/src/port/exec.c
+++ b/src/port/exec.c
@@ -556,8 +556,20 @@ set_pglocale_pgservice(const char *argv0, const char *app)
/* don't set LC_ALL in the backend */
if (strcmp(app, PG_TEXTDOMAIN("postgres")) != 0)
+ {
setlocale(LC_ALL, "");
+ /*
+ * One could make a case for reproducing here PostmasterMain()'s test
+ * for whether the process is multithreaded. Unlike the postmaster,
+ * no frontend program calls sigprocmask() or otherwise provides for
+ * mutual exclusion between signal handlers. While frontends using
+ * fork(), if multithreaded, are formally exposed to undefined
+ * behavior, we have not witnessed a concrete bug. Therefore,
+ * complaining about multithreading here may be mere pedantry.
+ */
+ }
+
if (find_my_exec(argv0, my_exec_path) < 0)
return;