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[WhiteScan] Fix some white scan errors

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This commit is contained in:
br0
2021-09-17 19:24:43 +08:00
committed by wangzelin.wzl
parent 875865e081
commit b1581e364b
4 changed files with 57 additions and 59 deletions
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95
src/sql/engine/expr/ob_expr_least.cpp
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@ -45,61 +45,56 @@ int ObExprBaseLeastGreatest::calc_result_typeN_oracle(
ret = OB_INVALID_ARGUMENT;
LOG_WARN("types is null or param_num is wrong", K(types), K(param_num), K(ret));
} else {
if (OB_ISNULL(types) || OB_UNLIKELY(param_num < 1)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("types is null or param_num is wrong", K(types), K(param_num), K(ret));
ObExprResType& first_type = types[0];
type = first_type;
if (ObIntTC == first_type.get_type_class() || ObUIntTC == first_type.get_type_class() ||
ObNumberTC == first_type.get_type_class()) {
type.set_type(ObNumberType);
type.set_calc_type(ObNumberType);
type.set_scale(ORA_NUMBER_SCALE_UNKNOWN_YET);
type.set_precision(PRECISION_UNKNOWN_YET);
} else if (ObLongTextType == type.get_type()) {
ret = OB_ERR_INVALID_TYPE_FOR_OP;
LOG_WARN("lob type parameter not expected", K(ret));
} else {
ObExprResType& first_type = types[0];
type = first_type;
if (ObIntTC == first_type.get_type_class() || ObUIntTC == first_type.get_type_class() ||
ObNumberTC == first_type.get_type_class()) {
type.set_type(ObNumberType);
type.set_calc_type(ObNumberType);
type.set_scale(ORA_NUMBER_SCALE_UNKNOWN_YET);
type.set_precision(PRECISION_UNKNOWN_YET);
} else if (ObLongTextType == type.get_type()) {
ret = OB_ERR_INVALID_TYPE_FOR_OP;
LOG_WARN("lob type parameter not expected", K(ret));
} else {
type.set_type(first_type.get_type());
type.set_calc_type(first_type.get_type());
}
type.set_type(first_type.get_type());
type.set_calc_type(first_type.get_type());
}
if (ObStringTC == type.get_type_class()) {
int64_t max_length = 0;
int64_t all_char = 0;
for (int64_t i = 0; OB_SUCC(ret) && i < param_num; i++) {
int64_t item_length = 0;
if (ObStringTC == types[i].get_type_class() || ObLongTextType == types[i].get_type()) {
item_length = types[i].get_length();
if (LS_CHAR == types[i].get_length_semantics()) {
item_length = item_length * 4;
all_char++;
}
} else if (ObNumberTC == types[i].get_type_class() || ObIntTC == types[i].get_type_class() ||
ObUIntTC == types[i].get_type_class()) {
item_length = number::ObNumber::MAX_PRECISION - number::ObNumber::MIN_SCALE;
} else if (ObOTimestampTC == types[i].get_type_class() || ObFloatTC == types[i].get_type_class() ||
ObDoubleTC == types[i].get_type_class() || ObNullTC == types[i].get_type_class()) {
item_length = 40;
} else if (ObDateTimeTC == types[i].get_type_class()) {
item_length = 19;
} else {
ret = OB_NOT_SUPPORTED;
LOG_WARN("unsupported type", K(ret), K(types[i]), K(types[i].get_type_class()));
}
if (OB_SUCC(ret)) {
max_length = MAX(max_length, item_length);
if (ObStringTC == type.get_type_class()) {
int64_t max_length = 0;
int64_t all_char = 0;
for (int64_t i = 0; OB_SUCC(ret) && i < param_num; i++) {
int64_t item_length = 0;
if (ObStringTC == types[i].get_type_class() || ObLongTextType == types[i].get_type()) {
item_length = types[i].get_length();
if (LS_CHAR == types[i].get_length_semantics()) {
item_length = item_length * 4;
all_char++;
}
} else if (ObNumberTC == types[i].get_type_class() || ObIntTC == types[i].get_type_class() ||
ObUIntTC == types[i].get_type_class()) {
item_length = number::ObNumber::MAX_PRECISION - number::ObNumber::MIN_SCALE;
} else if (ObOTimestampTC == types[i].get_type_class() || ObFloatTC == types[i].get_type_class() ||
ObDoubleTC == types[i].get_type_class() || ObNullTC == types[i].get_type_class()) {
item_length = 40;
} else if (ObDateTimeTC == types[i].get_type_class()) {
item_length = 19;
} else {
ret = OB_NOT_SUPPORTED;
LOG_WARN("unsupported type", K(ret), K(types[i]), K(types[i].get_type_class()));
}
if (OB_SUCC(ret)) {
if (all_char == param_num) {
type.set_length(static_cast<ObLength>(max_length / 4));
type.set_length_semantics(LS_CHAR);
} else {
type.set_length(static_cast<ObLength>(max_length));
}
max_length = MAX(max_length, item_length);
}
}
if (OB_SUCC(ret)) {
if (all_char == param_num) {
type.set_length(static_cast<ObLength>(max_length / 4));
type.set_length_semantics(LS_CHAR);
} else {
type.set_length(static_cast<ObLength>(max_length));
}
}
}