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Parsing numeric constant as ObDecimalIntType in oracle compatible mode

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This commit is contained in:
obdev
2024-02-07 04:13:49 +00:00
committed by ob-robot
parent da70d2c14f
commit ae90c30120
28 changed files with 659 additions and 66 deletions
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40
src/sql/engine/expr/ob_expr_substr.cpp
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@ -211,9 +211,17 @@ int ObExprSubstr::calc_result_typeN(ObExprResType &type,
PREFER_VAR_LEN_CHAR));
OZ(deduce_string_param_calc_type_and_charset(*type_ctx.get_session(), type, str_params));
for (int i = 1; OB_SUCC(ret) && i < param_num; i++) {
types_array[i].set_calc_type(ObNumberType);
types_array[i].set_calc_scale(NUMBER_SCALE_UNKNOWN_YET);
bool all_decint_params = true;
for (int i = 1; all_decint_params && i < param_num; i++) {
all_decint_params = (types_array[i].get_type() == ObDecimalIntType);
}
if (all_decint_params) {
// do nothing
} else {
for (int i = 1; OB_SUCC(ret) && i < param_num; i++) {
types_array[i].set_calc_type(ObNumberType);
types_array[i].set_calc_scale(NUMBER_SCALE_UNKNOWN_YET);
}
}
OZ(calc_result_length_oracle(types_array, param_num, type, len));
CK(len <= INT32_MAX);
@ -631,8 +639,8 @@ int ObExprSubstr::eval_substr(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_
int64_t pos = 0;
int64_t len = input.length();
if (lib::is_oracle_mode()) {
if (OB_FAIL(ObExprUtil::trunc_num2int64(*pos_datum, pos))
|| (NULL != len_datum && OB_FAIL(ObExprUtil::trunc_num2int64(*len_datum, len)))) {
if (OB_FAIL(ora_get_integer(*pos_datum, *expr.args_[1], pos))
|| (NULL != len_datum && OB_FAIL(ora_get_integer(*len_datum, *expr.args_[2], len)))) {
LOG_WARN("get integer value failed", K(ret));
}
} else {
@ -739,8 +747,8 @@ int ObExprSubstr::eval_substr_batch(const ObExpr &expr, ObEvalCtx &ctx,
}
} else {
if (is_oracle_mode()) {
if (OB_FAIL(ObExprUtil::trunc_num2int64(*pos_datum, pos))
|| (NULL != len_datum && OB_FAIL(ObExprUtil::trunc_num2int64(*len_datum, len)))) {
if (OB_FAIL(ora_get_integer(*pos_datum, *expr.args_[1], pos))
|| (NULL != len_datum && OB_FAIL(ora_get_integer(*len_datum, *expr.args_[2], len)))) {
LOG_WARN("get integer value failed", K(ret));
}
} else {
@ -801,5 +809,23 @@ int ObExprSubstr::eval_substr_batch(const ObExpr &expr, ObEvalCtx &ctx,
return ret;
}
int ObExprSubstr::ora_get_integer(const ObDatum &int_datum, const ObExpr &expr, int64_t &v)
{
int ret = OB_SUCCESS;
if (ob_is_decimal_int(expr.datum_meta_.type_)) {
if (OB_FAIL(ObExprUtil::trunc_decint2int64(
int_datum.get_decimal_int(), int_datum.get_int_bytes(), expr.datum_meta_.scale_, v))) {
LOG_WARN("get integer failed", K(ret));
}
} else if (ob_is_number_tc(expr.datum_meta_.type_)) {
if (OB_FAIL(ObExprUtil::trunc_num2int64(int_datum, v))) {
LOG_WARN("get integer failed", K(ret));
}
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected datum", K(int_datum), K(expr));
}
return ret;
}
} /* sql */
} /* oceanbase */