diff options
| -rw-r--r-- | src/backend/utils/misc/guc.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index fe6c6f8a05a..1c4f9ac04e6 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -6240,13 +6240,15 @@ parse_real(const char *value, double *result, int flags, const char **hintmsg) if (hintmsg) *hintmsg = NULL; - errno = 0; val = strtod(value, &endptr); + if (endptr == value) + return false; /* no HINT for syntax error */ - if (endptr == value || errno == ERANGE) - return false; /* no HINT for these cases */ - - /* reject NaN (infinities will fail range checks later) */ + /* + * We ignore strtod's errno, so that out-of-range inputs will just result + * in zero or infinity values. Subsequent range checks will reject those + * if necessary. We do need to reject NaN explicitly, however. + */ if (isnan(val)) return false; /* treat same as syntax error; no HINT */ |