diff --git a/src/backend/catalog/system_views.sql b/src/backend/catalog/system_views.sql
index 6df6bf2..f628cb0 100644
--- a/src/backend/catalog/system_views.sql
+++ b/src/backend/catalog/system_views.sql
@@ -412,6 +412,11 @@ CREATE RULE pg_settings_n AS
 
 GRANT SELECT, UPDATE ON pg_settings TO PUBLIC;
 
+CREATE VIEW pg_file_settings AS
+   SELECT * FROM pg_show_all_file_settings() AS A;
+
+REVOKE ALL on pg_file_settings FROM public;
+
 CREATE VIEW pg_timezone_abbrevs AS
     SELECT * FROM pg_timezone_abbrevs();
 
diff --git a/src/backend/utils/misc/guc-file.l b/src/backend/utils/misc/guc-file.l
index b2f04e5..dba5a52 100644
--- a/src/backend/utils/misc/guc-file.l
+++ b/src/backend/utils/misc/guc-file.l
@@ -122,6 +122,7 @@ ProcessConfigFile(GucContext context)
 	ConfigVariable *item,
 			   *head,
 			   *tail;
+	ConfigFileVariable *guc;
 	int			i;
 
 	/*
@@ -258,6 +259,7 @@ ProcessConfigFile(GucContext context)
 			error = true;
 			ConfFileWithError = item->filename;
 		}
+		num_guc_file_variables++;
 	}
 
 	/*
@@ -344,6 +346,21 @@ ProcessConfigFile(GucContext context)
 						PGC_BACKEND, PGC_S_DYNAMIC_DEFAULT);
 	}
 
+	guc_file_variables = (ConfigFileVariable *)
+			guc_malloc(FATAL, num_guc_file_variables * sizeof(struct ConfigFileVariable));
+
+	/*
+	 * Apply guc config parameters to guc_file_variable
+	 */
+	guc = guc_file_variables;
+	for (item = head; item; item = item->next, guc++)
+	{
+	    guc->name = guc_strdup(FATAL, item->name);
+	    guc->value = guc_strdup(FATAL, item->value);
+	    guc->filename = guc_strdup(FATAL, item->filename);
+	    guc->sourceline = item->sourceline;
+	}
+
 	/*
 	 * Now apply the values from the config file.
 	 */
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 931993c..c69ce66 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -3561,9 +3561,17 @@ static const char *const map_old_guc_names[] = {
  */
 static struct config_generic **guc_variables;
 
+/*
+ * lookup of variables for pg_file_settings view.
+ */
+static struct ConfigFileVariable *guc_file_variables;
+
 /* Current number of variables contained in the vector */
 static int	num_guc_variables;
 
+/* Number of file variables */
+static int	num_guc_file_variables;
+
 /* Vector capacity */
 static int	size_guc_variables;
 
@@ -7919,6 +7927,15 @@ GetNumConfigOptions(void)
 }
 
 /*
+ * Return the total number of GUC File variables
+ */
+int
+GetNumConfigFileOptions(void)
+{
+	return num_guc_file_variables;
+}
+
+/*
  * show_config_by_name - equiv to SHOW X command but implemented as
  * a function.
  */
@@ -8062,6 +8079,90 @@ show_all_settings(PG_FUNCTION_ARGS)
 	}
 }
 
+/*
+ * show_all_file_settings
+ */
+
+#define NUM_PG_FILE_SETTINGS_ATTS 4
+
+Datum
+show_all_file_settings(PG_FUNCTION_ARGS)
+{
+	FuncCallContext *funcctx;
+	TupleDesc	tupdesc;
+	int			call_cntr;
+	int			max_calls;
+	AttInMetadata *attinmeta;
+	MemoryContext oldcontext;
+
+	if (SRF_IS_FIRSTCALL())
+	{
+		funcctx = SRF_FIRSTCALL_INIT();
+
+		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
+
+		/*
+		 * need a tuple descriptor representing NUM_PG_SETTINGS_ATTS columns
+		 * of the appropriate types
+		 */
+
+		tupdesc = CreateTemplateTupleDesc(NUM_PG_FILE_SETTINGS_ATTS, false);
+		TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name",
+						   TEXTOID, -1, 0);
+		TupleDescInitEntry(tupdesc, (AttrNumber) 2, "setting",
+						   TEXTOID, -1, 0);
+		TupleDescInitEntry(tupdesc, (AttrNumber) 3, "sourcefile",
+						   TEXTOID, -1, 0);
+		TupleDescInitEntry(tupdesc, (AttrNumber) 4, "sourceline",
+						   INT4OID, -1, 0);
+
+
+		attinmeta = TupleDescGetAttInMetadata(tupdesc);
+		funcctx->attinmeta = attinmeta;
+		funcctx->max_calls = GetNumConfigFileOptions();
+		MemoryContextSwitchTo(oldcontext);
+	}
+
+	funcctx = SRF_PERCALL_SETUP();
+
+	call_cntr = funcctx->call_cntr;
+	max_calls = funcctx->max_calls;
+	attinmeta = funcctx->attinmeta;
+
+	if (call_cntr < max_calls)
+	{
+		char	   *values[NUM_PG_FILE_SETTINGS_ATTS];
+		HeapTuple	tuple;
+		Datum		result;
+		ConfigFileVariable conf;
+		char		buffer[256];
+
+		conf = guc_file_variables[call_cntr];
+
+		values[0] = conf.name;
+		values[1] = conf.value;
+		values[2] = conf.filename;
+		snprintf(buffer, sizeof(buffer), "%d", conf.sourceline);
+		values[3] = pstrdup(buffer);
+
+		if (call_cntr >= max_calls)
+			SRF_RETURN_DONE(funcctx);
+
+		/* build a tuple */
+		tuple = BuildTupleFromCStrings(attinmeta, values);
+
+		/* make the tuple into a datum */
+		result = HeapTupleGetDatum(tuple);
+
+		SRF_RETURN_NEXT(funcctx, result);
+	}
+	else
+	{
+		SRF_RETURN_DONE(funcctx);
+	}
+
+}
+
 static char *
 _ShowOption(struct config_generic * record, bool use_units)
 {
diff --git a/src/include/catalog/pg_proc.h b/src/include/catalog/pg_proc.h
index 9edfdb8..1b6b044 100644
--- a/src/include/catalog/pg_proc.h
+++ b/src/include/catalog/pg_proc.h
@@ -3017,6 +3017,8 @@ DATA(insert OID = 2078 (  set_config		PGNSP PGUID 12 1 0 0 0 f f f f f f v 3 0 2
 DESCR("SET X as a function");
 DATA(insert OID = 2084 (  pg_show_all_settings	PGNSP PGUID 12 1 1000 0 0 f f f f t t s 0 0 2249 "" "{25,25,25,25,25,25,25,25,25,25,25,1009,25,25,25,23}" "{o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o}" "{name,setting,unit,category,short_desc,extra_desc,context,vartype,source,min_val,max_val,enumvals,boot_val,reset_val,sourcefile,sourceline}" _null_ show_all_settings _null_ _null_ _null_ ));
 DESCR("SHOW ALL as a function");
+DATA(insert OID = 2095 (  pg_show_all_file_settings	PGNSP PGUID 12 1 1000 0 0 f f f f t t s 0 0 2249 "" "{25,25,25,23}" "{o,o,o,o}" "{name,setting,sourcefile,sourceline}" _null_ show_all_file_settings _null_ _null_ _null_ ));
+DESCR("show config file settings");
 DATA(insert OID = 1371 (  pg_lock_status   PGNSP PGUID 12 1 1000 0 0 f f f f t t v 0 0 2249 "" "{25,26,26,23,21,25,28,26,26,21,25,23,25,16,16}" "{o,o,o,o,o,o,o,o,o,o,o,o,o,o,o}" "{locktype,database,relation,page,tuple,virtualxid,transactionid,classid,objid,objsubid,virtualtransaction,pid,mode,granted,fastpath}" _null_ pg_lock_status _null_ _null_ _null_ ));
 DESCR("view system lock information");
 DATA(insert OID = 1065 (  pg_prepared_xact PGNSP PGUID 12 1 1000 0 0 f f f f t t v 0 0 2249 "" "{28,25,1184,26,26}" "{o,o,o,o,o}" "{transaction,gid,prepared,ownerid,dbid}" _null_ pg_prepared_xact _null_ _null_ _null_ ));
diff --git a/src/include/utils/builtins.h b/src/include/utils/builtins.h
index bc4517d..91c823f 100644
--- a/src/include/utils/builtins.h
+++ b/src/include/utils/builtins.h
@@ -1090,6 +1090,7 @@ extern Datum quote_nullable(PG_FUNCTION_ARGS);
 extern Datum show_config_by_name(PG_FUNCTION_ARGS);
 extern Datum set_config_by_name(PG_FUNCTION_ARGS);
 extern Datum show_all_settings(PG_FUNCTION_ARGS);
+extern Datum show_all_file_settings(PG_FUNCTION_ARGS);
 
 /* lockfuncs.c */
 extern Datum pg_lock_status(PG_FUNCTION_ARGS);
diff --git a/src/include/utils/guc.h b/src/include/utils/guc.h
index 717f46b..aae67c3 100644
--- a/src/include/utils/guc.h
+++ b/src/include/utils/guc.h
@@ -133,6 +133,14 @@ typedef struct ConfigVariable
 	struct ConfigVariable *next;
 } ConfigVariable;
 
+typedef struct ConfigFileVariable
+{
+	char	*name;
+	char	*value;
+	char	*filename;
+	int		sourceline;
+} ConfigFileVariable;
+
 extern bool ParseConfigFile(const char *config_file, const char *calling_file,
 				bool strict, int depth, int elevel,
 				ConfigVariable **head_p, ConfigVariable **tail_p);
@@ -352,6 +360,7 @@ extern void AlterSystemSetConfigFile(AlterSystemStmt *setstmt);
 extern char *GetConfigOptionByName(const char *name, const char **varname);
 extern void GetConfigOptionByNum(int varnum, const char **values, bool *noshow);
 extern int	GetNumConfigOptions(void);
+extern int	GetNumConfigFileOptions(void);
 
 extern void SetPGVariable(const char *name, List *args, bool is_local);
 extern void GetPGVariable(const char *name, DestReceiver *dest);