ckdb - use a signed number for ram to handle numerical errors

src/ckdb.h

@@ -58,7 +58,7 @@
 
 #define DB_VLOCK "1"
 #define DB_VERSION "1.0.7"
-#define CKDB_VERSION DB_VERSION"-2.516"
+#define CKDB_VERSION DB_VERSION"-2.517"
 
 #define WHERE_FFL " - from %s %s() line %d"
 #define WHERE_FFL_HERE __FILE__, __func__, __LINE__

src/ckdb_cmd.c

@@ -5986,7 +5986,7 @@ static char *cmd_stats(__maybe_unused PGconn *conn, char *cmd, char *id,
 	char tmp[1024], *buf;
 	const char *name;
 	size_t len, off;
-	uint64_t ram, ram2, tot = 0;
+	int64_t ram, ram2, tot = 0;
 	K_LIST *klist;
 	K_LISTS *klists;
 	int rows = 0;
@@ -6031,8 +6031,8 @@ static char *cmd_stats(__maybe_unused PGconn *conn, char *cmd, char *id,
 
 		snprintf(tmp, sizeof(tmp),
 			 "name:%d=%s%s%s%cinitial:%d=%d%callocated:%d=%d%c"
-			 "instore:%d=%d%cram:%d=%"PRIu64"%c"
-			 "ram2:%d=%"PRIu64"%ccull:%d=%d%ccull_limit:%d=%d%c",
+			 "instore:%d=%d%cram:%d=%"PRId64"%c"
+			 "ram2:%d=%"PRId64"%ccull:%d=%d%ccull_limit:%d=%d%c",
 			 rows, name, istree ? " (tree)" : "",
 			 klist->is_lock_only ? " (lock)" : "", FLDSEP,
 			 rows, klist->allocate, FLDSEP,
@@ -6051,7 +6051,7 @@ static char *cmd_stats(__maybe_unused PGconn *conn, char *cmd, char *id,
 	}
 	ck_wunlock(&lock_check_lock);
 
-	snprintf(tmp, sizeof(tmp), "totalram=%"PRIu64"%c", tot, FLDSEP);
+	snprintf(tmp, sizeof(tmp), "totalram=%"PRId64"%c", tot, FLDSEP);
 	APPEND_REALLOC(buf, off, len, tmp);
 
 	snprintf(tmp, sizeof(tmp),