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[BUGFIX] fix lob bugs

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This commit is contained in:
obdev
2023-02-10 02:41:10 +00:00
committed by ob-robot
parent 75bf694c31
commit 773fa90509
4 changed files with 17 additions and 7 deletions
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5
src/sql/engine/expr/ob_expr_initcap.cpp
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@ -176,7 +176,8 @@ int calc_initcap_expr(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res_datum)
} else if (OB_FAIL(output_result.init(input_byte_len * case_multiply))) {
LOG_WARN("init stringtext result failed");
} else if (input_byte_len == 0) {
output_result.set_result();
// do nothing, let res_str become empty string
res_str.assign_ptr(NULL, 0);
} else if (OB_FAIL(output_result.get_reserved_buffer(res_buf, buf_size))) {
LOG_WARN("stringtext result reserve buffer failed");
} else {
@ -204,7 +205,7 @@ int calc_initcap_expr(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res_datum)
}
}
if (OB_SUCC(ret)) {
if (0 == res_str.length() || ob_is_empty_lob(expr.datum_meta_.type_, res_datum, expr.obj_meta_.has_lob_header())) {
if (0 == res_str.length()) {
// initcap is only for oracle mode. set res be null when string length is 0.
res_datum.set_null();
} else {