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[BUGFIX] fix lob bugs

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obdev
2023-02-24 17:11:48 +08:00
committed by ob-robot
parent 642798b78e
commit 46c6a9bfce
7 changed files with 92 additions and 27 deletions
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4
src/sql/engine/expr/ob_expr_instr.cpp
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@ -148,7 +148,9 @@ static int calc_oracle_instr_text(ObTextStringIter &haystack_iter,
LOG_WARN("get needle data failed ", K(ret), K(needle_iter));
} else if (OB_FAIL(needle_iter.get_char_len(needle_char_len))) {
LOG_WARN("get needle char len failed ", K(ret), K(needle_iter));
} else if (haystack_char_len - abs_pos_int < needle_char_len) {
} else if ((needle_char_len < 1) ||
(haystack_char_len - abs_pos_int + 1 < needle_char_len)) {
// pattern is empty string, just return zero
// pattern length is bigger than content, just return zero
idx = 0;
} else {