Add GUC descriptions for compile-time postgresql.conf settings

Previous text was "No description available".

Tianyin Xu

src/backend/utils/misc/guc.c

@@ -997,7 +997,7 @@ static struct config_bool ConfigureNamesBool[] =
 #ifdef BTREE_BUILD_STATS
 	{
 		{"log_btree_build_stats", PGC_SUSET, DEVELOPER_OPTIONS,
-			gettext_noop("No description available."),
+			gettext_noop("Logs system resource usage statistics (memory and CPU) on various B-tree operations."),
 			NULL,
 			GUC_NOT_IN_SAMPLE
 		},
@@ -1071,7 +1071,7 @@ static struct config_bool ConfigureNamesBool[] =
 #ifdef LOCK_DEBUG
 	{
 		{"trace_locks", PGC_SUSET, DEVELOPER_OPTIONS,
-			gettext_noop("No description available."),
+			gettext_noop("Emits information about lock usage."),
 			NULL,
 			GUC_NOT_IN_SAMPLE
 		},
@@ -1081,7 +1081,7 @@ static struct config_bool ConfigureNamesBool[] =
 	},
 	{
 		{"trace_userlocks", PGC_SUSET, DEVELOPER_OPTIONS,
-			gettext_noop("No description available."),
+			gettext_noop("Emits information about user lock usage."),
 			NULL,
 			GUC_NOT_IN_SAMPLE
 		},
@@ -1091,7 +1091,7 @@ static struct config_bool ConfigureNamesBool[] =
 	},
 	{
 		{"trace_lwlocks", PGC_SUSET, DEVELOPER_OPTIONS,
-			gettext_noop("No description available."),
+			gettext_noop("Emits information about lightweight lock usage."),
 			NULL,
 			GUC_NOT_IN_SAMPLE
 		},
@@ -1101,7 +1101,7 @@ static struct config_bool ConfigureNamesBool[] =
 	},
 	{
 		{"debug_deadlocks", PGC_SUSET, DEVELOPER_OPTIONS,
-			gettext_noop("No description available."),
+			gettext_noop("Dumps information about all current locks when a deadlock timeout occurs."),
 			NULL,
 			GUC_NOT_IN_SAMPLE
 		},
@@ -1848,8 +1848,8 @@ static struct config_int ConfigureNamesInt[] =
 #ifdef LOCK_DEBUG
 	{
 		{"trace_lock_oidmin", PGC_SUSET, DEVELOPER_OPTIONS,
-			gettext_noop("No description available."),
-			NULL,
+			gettext_noop("Sets the minimum OID of tables for tracking locks."),
+			gettext_noop("Is used to avoid output on system tables."),
 			GUC_NOT_IN_SAMPLE
 		},
 		&Trace_lock_oidmin,
@@ -1858,7 +1858,7 @@ static struct config_int ConfigureNamesInt[] =
 	},
 	{
 		{"trace_lock_table", PGC_SUSET, DEVELOPER_OPTIONS,
-			gettext_noop("No description available."),
+			gettext_noop("Sets the OID of the table with unconditionally lock tracing."),
 			NULL,
 			GUC_NOT_IN_SAMPLE
 		},