Split out documentation of SSL parameters into their own section

Split the "Authentication and Security" section into two separate
sections "Authentication" and "SSL".  The latter part has gotten much
longer over time, and doesn't primarily have to do with authentication.

Also, the row_security parameter was inconsistently categorized, so
clean that up while we're here.

src/backend/utils/misc/guc.c

@@ -573,8 +573,10 @@ const char *const config_group_names[] =
 	gettext_noop("Connections and Authentication"),
 	/* CONN_AUTH_SETTINGS */
 	gettext_noop("Connections and Authentication / Connection Settings"),
-	/* CONN_AUTH_SECURITY */
-	gettext_noop("Connections and Authentication / Security and Authentication"),
+	/* CONN_AUTH_AUTH */
+	gettext_noop("Connections and Authentication / Authentication"),
+	/* CONN_AUTH_SSL */
+	gettext_noop("Connections and Authentication / SSL"),
 	/* RESOURCES */
 	gettext_noop("Resource Usage"),
 	/* RESOURCES_MEM */
@@ -978,7 +980,7 @@ static struct config_bool ConfigureNamesBool[] =
 		NULL, NULL, NULL
 	},
 	{
-		{"ssl", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Enables SSL connections."),
 			NULL
 		},
@@ -987,7 +989,7 @@ static struct config_bool ConfigureNamesBool[] =
 		check_ssl, NULL, NULL
 	},
 	{
-		{"ssl_prefer_server_ciphers", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_prefer_server_ciphers", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Give priority to server ciphersuite order."),
 			NULL
 		},
@@ -1378,7 +1380,7 @@ static struct config_bool ConfigureNamesBool[] =
 		NULL, NULL, NULL
 	},
 	{
-		{"db_user_namespace", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"db_user_namespace", PGC_SIGHUP, CONN_AUTH_AUTH,
 			gettext_noop("Enables per-database user names."),
 			NULL
 		},
@@ -1425,7 +1427,7 @@ static struct config_bool ConfigureNamesBool[] =
 		check_transaction_deferrable, NULL, NULL
 	},
 	{
-		{"row_security", PGC_USERSET, CONN_AUTH_SECURITY,
+		{"row_security", PGC_USERSET, CLIENT_CONN_STATEMENT,
 			gettext_noop("Enable row security."),
 			gettext_noop("When enabled, row security will be applied to all users.")
 		},
@@ -1548,7 +1550,7 @@ static struct config_bool ConfigureNamesBool[] =
 	},
 
 	{
-		{"krb_caseins_users", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"krb_caseins_users", PGC_SIGHUP, CONN_AUTH_AUTH,
 			gettext_noop("Sets whether Kerberos and GSSAPI user names should be treated as case-insensitive."),
 			NULL
 		},
@@ -2247,7 +2249,7 @@ static struct config_int ConfigureNamesInt[] =
 	},
 
 	{
-		{"authentication_timeout", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"authentication_timeout", PGC_SIGHUP, CONN_AUTH_AUTH,
 			gettext_noop("Sets the maximum allowed time to complete client authentication."),
 			NULL,
 			GUC_UNIT_S
@@ -2797,7 +2799,7 @@ static struct config_int ConfigureNamesInt[] =
 	},
 
 	{
-		{"ssl_renegotiation_limit", PGC_USERSET, CONN_AUTH_SECURITY,
+		{"ssl_renegotiation_limit", PGC_USERSET, CONN_AUTH_SSL,
 			gettext_noop("SSL renegotiation is no longer supported; this can only be 0."),
 			NULL,
 			GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE,
@@ -3170,7 +3172,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"krb_server_keyfile", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"krb_server_keyfile", PGC_SIGHUP, CONN_AUTH_AUTH,
 			gettext_noop("Sets the location of the Kerberos server key file."),
 			NULL,
 			GUC_SUPERUSER_ONLY
@@ -3530,7 +3532,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"ssl_cert_file", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_cert_file", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Location of the SSL server certificate file."),
 			NULL
 		},
@@ -3540,7 +3542,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"ssl_key_file", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_key_file", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Location of the SSL server private key file."),
 			NULL
 		},
@@ -3550,7 +3552,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"ssl_ca_file", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_ca_file", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Location of the SSL certificate authority file."),
 			NULL
 		},
@@ -3560,7 +3562,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"ssl_crl_file", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_crl_file", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Location of the SSL certificate revocation list file."),
 			NULL
 		},
@@ -3602,7 +3604,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"ssl_ciphers", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_ciphers", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Sets the list of allowed SSL ciphers."),
 			NULL,
 			GUC_SUPERUSER_ONLY
@@ -3617,7 +3619,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"ssl_ecdh_curve", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_ecdh_curve", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Sets the curve to use for ECDH."),
 			NULL,
 			GUC_SUPERUSER_ONLY
@@ -3632,7 +3634,7 @@ static struct config_string ConfigureNamesString[] =
 	},
 
 	{
-		{"ssl_dh_params_file", PGC_SIGHUP, CONN_AUTH_SECURITY,
+		{"ssl_dh_params_file", PGC_SIGHUP, CONN_AUTH_SSL,
 			gettext_noop("Location of the SSL DH parameters file."),
 			NULL,
 			GUC_SUPERUSER_ONLY
@@ -3932,7 +3934,7 @@ static struct config_enum ConfigureNamesEnum[] =
 	},
 
 	{
-		{"password_encryption", PGC_USERSET, CONN_AUTH_SECURITY,
+		{"password_encryption", PGC_USERSET, CONN_AUTH_AUTH,
 			gettext_noop("Encrypt passwords."),
 			gettext_noop("When a password is specified in CREATE USER or "
 						 "ALTER USER without writing either ENCRYPTED or UNENCRYPTED, "

src/backend/utils/misc/postgresql.conf.sample

@@ -73,35 +73,37 @@
 #bonjour_name = ''			# defaults to the computer name
 					# (change requires restart)
 
-# - Security and Authentication -
+# - TCP Keepalives -
+# see "man 7 tcp" for details
+
+#tcp_keepalives_idle = 0		# TCP_KEEPIDLE, in seconds;
+					# 0 selects the system default
+#tcp_keepalives_interval = 0		# TCP_KEEPINTVL, in seconds;
+					# 0 selects the system default
+#tcp_keepalives_count = 0		# TCP_KEEPCNT;
+					# 0 selects the system default
+
+# - Authentication -
 
 #authentication_timeout = 1min		# 1s-600s
-#ssl = off
-#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
-#ssl_prefer_server_ciphers = on
-#ssl_ecdh_curve = 'prime256v1'
-#ssl_dh_params_file = ''
-#ssl_cert_file = 'server.crt'
-#ssl_key_file = 'server.key'
-#ssl_ca_file = ''
-#ssl_crl_file = ''
 #password_encryption = md5		# md5 or scram-sha-256
 #db_user_namespace = off
-#row_security = on
 
 # GSSAPI using Kerberos
 #krb_server_keyfile = ''
 #krb_caseins_users = off
 
-# - TCP Keepalives -
-# see "man 7 tcp" for details
+# - SSL -
 
-#tcp_keepalives_idle = 0		# TCP_KEEPIDLE, in seconds;
-					# 0 selects the system default
-#tcp_keepalives_interval = 0		# TCP_KEEPINTVL, in seconds;
-					# 0 selects the system default
-#tcp_keepalives_count = 0		# TCP_KEEPCNT;
-					# 0 selects the system default
+#ssl = off
+#ssl_ca_file = ''
+#ssl_cert_file = 'server.crt'
+#ssl_crl_file = ''
+#ssl_key_file = 'server.key'
+#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
+#ssl_prefer_server_ciphers = on
+#ssl_ecdh_curve = 'prime256v1'
+#ssl_dh_params_file = ''
 
 
 #------------------------------------------------------------------------------
@@ -543,6 +545,7 @@
 # - Statement Behavior -
 
 #search_path = '"$user", public'	# schema names
+#row_security = on
 #default_tablespace = ''		# a tablespace name, '' uses the default
 #temp_tablespaces = ''			# a list of tablespace names, '' uses
 					# only default tablespace

src/include/utils/guc_tables.h

@@ -56,7 +56,8 @@ enum config_group
 	FILE_LOCATIONS,
 	CONN_AUTH,
 	CONN_AUTH_SETTINGS,
-	CONN_AUTH_SECURITY,
+	CONN_AUTH_AUTH,
+	CONN_AUTH_SSL,
 	RESOURCES,
 	RESOURCES_MEM,
 	RESOURCES_DISK,