--- describe.c	2022-01-26 16:17:51.353135285 +0800
+++ describe_Patch.c	2022-02-18 15:57:51.099581978 +0800
@@ -3406,6 +3406,13 @@
 	if (res)
 		PQclear(res);
 
+    if (tableinfo.reloptions)
+        pg_free (tableinfo.reloptions);
+    if (tableinfo.reloftype)
+        pg_free (tableinfo.reloftype);
+    if (tableinfo.relam)
+        pg_free (tableinfo. relam);
+
 	return retval;
 }