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fix unhex bug

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This commit is contained in:
rh0
2022-03-03 10:22:54 +08:00
committed by LINxiansheng
parent 42bdc0f45d
commit 104dab5c02
3 changed files with 18 additions and 6 deletions
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8
src/sql/engine/expr/ob_datum_cast.cpp
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@ -512,8 +512,12 @@ int ObDatumHexUtils::unhex(const ObExpr& expr, const ObString& in_str, ObEvalCtx
while (OB_SUCC(ret) && i < in_str.length()) {
if (isxdigit(c1) && isxdigit(c2)) {
buf[i / 2] = (char)((get_xdigit(c1) << 4) | get_xdigit(c2));
c1 = in_str[++i];
c2 = in_str[++i];
if (i + 2 < in_str.length()) {
c1 = in_str[++i];
c2 = in_str[++i];
} else {
break;
}
} else {
ret = OB_ERR_INVALID_HEX_NUMBER;
LOG_WARN("invalid hex number", K(ret), K(c1), K(c2), K(in_str));