doc: Correct context description for some JIT support GUCs

The documentation for jit_debugging_support and jit_profiling_support
previously stated that these parameters can only be set at server start.

However, both parameters use the PGC_SU_BACKEND context, meaning they
can be set at session start by superusers or users granted the appropriate
SET privilege, but cannot be changed within an active session.

This commit updates the documentation to reflect the actual behavior.

Backpatch to all supported versions.

Author: Fujii Masao <masao.fujii@gmail.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/CAHGQGwEpMDpB-K8SSUVRRHg6L6z3pLAkekd9aviOS=ns0EC=+Q@mail.gmail.com
Backpatch-through: 14

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 880e83035dcfe0b3b26bb5f3c6f767712f490147..c92b8e41879b552cdd72114d7839413ac4069f5e 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -11978,7 +11978,9 @@ LOG:  CleanUpLock: deleting: lock(0xb7acd844) id(24688,24696,0,0,0,1)
         If LLVM has the required functionality, register generated functions
         with <productname>GDB</productname>.  This makes debugging easier.
         The default setting is <literal>off</literal>.
-        This parameter can only be set at server start.
+        Only superusers and users with the appropriate <literal>SET</literal>
+        privilege can change this parameter at session start,
+        and it cannot be changed at all within a session.
        </para>
       </listitem>
      </varlistentry>
@@ -12029,7 +12031,9 @@ LOG:  CleanUpLock: deleting: lock(0xb7acd844) id(24688,24696,0,0,0,1)
         This writes out files to <filename>~/.debug/jit/</filename>; the
         user is responsible for performing cleanup when desired.
         The default setting is <literal>off</literal>.
-        This parameter can only be set at server start.
+        Only superusers and users with the appropriate <literal>SET</literal>
+        privilege can change this parameter at session start,
+        and it cannot be changed at all within a session.
        </para>
       </listitem>
      </varlistentry>