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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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20
deps/oblib/src/lib/wide_integer/ob_wide_integer_cmp_funcs.h vendored
View File

@ -74,6 +74,26 @@ int compare(const T &lhs, const P &rhs, int &result)
}
return ret;
}
template<typename T, typename P>
bool abs_equal(const T &lhs, const P &rhs)
{
#define ABS_CMP(ltype, rtype) \
const ltype &lv = *reinterpret_cast<const ltype *>(lhs_decint); \
const rtype &rv = *reinterpret_cast<const rtype *>(rhs_decint); \
is_equal = (((lv + rv) == 0) || (lv == rv));
int ret = OB_SUCCESS;
bool is_equal = false;
const ObDecimalInt *lhs_decint = lhs.get_decimal_int();
const ObDecimalInt *rhs_decint = rhs.get_decimal_int();
int32_t lhs_bytes = lhs.get_int_bytes();
int32_t rhs_bytes = rhs.get_int_bytes();
DISPATCH_INOUT_WIDTH_TASK(lhs_bytes, rhs_bytes, ABS_CMP);
return is_equal;
#undef ABS_CMP
}
} // end namespace wide
} // end namespace common
} // end namespace oceanbase

43
deps/oblib/src/lib/wide_integer/ob_wide_integer_helper.h vendored
View File

@ -478,6 +478,49 @@ inline bool is_negative(const ObDecimalInt *decint, int32_t int_bytes)
}
}
inline bool is_zero(const ObDecimalInt *decint, int32_t int_bytes)
{
if (int_bytes == 0) {
return true;
}
switch (int_bytes) {
case sizeof(int32_t): return *(decint->int32_v_) == 0;
case sizeof(int64_t): return *(decint->int64_v_) == 0;
case sizeof(int128_t): return *(decint->int128_v_) == 0;
case sizeof(int256_t): return *(decint->int256_v_) == 0;
case sizeof(int512_t): return *(decint->int512_v_) == 0;
default: return false;
}
}
inline int negate(const ObDecimalInt *decint, int32_t int_bytes, ObDecimalInt *&out_decint,
ObIAllocator &allocator)
{
#define NEG_VAL_CASE(int_type) \
case sizeof(int_type): { \
*reinterpret_cast<int_type *>(out_decint) = -(*reinterpret_cast<const int_type *>(decint)); \
} break
int ret = OB_SUCCESS;
out_decint = nullptr;
if (int_bytes == 0) {
// do nothing
} else if (OB_ISNULL(out_decint = (ObDecimalInt *)allocator.alloc(int_bytes))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
SQL_LOG(WARN, "allocate memory failed", K(ret));
} else {
switch (int_bytes) {
LST_DO_CODE(NEG_VAL_CASE, int32_t, int64_t, int128_t, int256_t, int512_t);
default: {
ret = OB_ERR_UNEXPECTED;
SQL_LOG(WARN, "unexpected int bytes", K(ret), K(int_bytes));
}
}
}
return ret;
#undef NEG_VAL_CASE
}
template <typename T>
int scale_up_decimalint(const T &x, unsigned scale, ObDecimalIntBuilder &res)
{