diff --git a/src/pl/plpgsql/src/pl_exec.c b/src/pl/plpgsql/src/pl_exec.c index b7f44ca1d1a..e63b4185d74 100644 --- a/src/pl/plpgsql/src/pl_exec.c +++ b/src/pl/plpgsql/src/pl_exec.c @@ -38,6 +38,9 @@ #include "utils/snapmgr.h" #include "utils/typcache.h" +#define PG_INT32_MIN (-0x7FFFFFFF-1) +#define PG_INT32_MAX (0x7FFFFFFF) + static const char *const raise_skip_msg = "RAISE"; @@ -2030,13 +2033,13 @@ exec_stmt_fori(PLpgSQL_execstate *estate, PLpgSQL_stmt_fori *stmt) */ if (stmt->reverse) { - if ((int32) (loop_value - step_value) > loop_value) + if (loop_value < (PG_INT32_MIN + step_value)) break; loop_value -= step_value; } else { - if ((int32) (loop_value + step_value) < loop_value) + if (loop_value > (PG_INT32_MAX - step_value)) break; loop_value += step_value; }