thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-27 01:51:59 +00:00
Code Issues Packages Projects Releases Wiki Activity
e2e6032020
ClickHouse/dbms/include/DB/Functions/FunctionsComparison.h
Alexey Milovidov fe0dd1d0b2 dbms: improvement [#CONV-2944].
2013-06-21 20:34:19 +00:00

1369 lines
44 KiB
C++
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#pragma once
#include <DB/Columns/ColumnsNumber.h>
#include <DB/Columns/ColumnConst.h>
#include <DB/Columns/ColumnString.h>
#include <DB/Columns/ColumnFixedString.h>
#include <DB/DataTypes/DataTypesNumberFixed.h>
#include <DB/DataTypes/DataTypeDateTime.h>
#include <DB/DataTypes/DataTypeDate.h>
#include <DB/DataTypes/DataTypeString.h>
#include <DB/DataTypes/DataTypeFixedString.h>
#include <DB/Functions/IFunction.h>
namespace DB
{
/** Функции сравнения: ==, !=, <, >, <=, >=.
* Функции сравнения возвращают всегда 0 или 1 (UInt8).
*
* Сравнивать можно следующие типы:
* - числа;
* - строки и фиксированные строки;
* - даты;
* - даты-с-временем;
* внутри каждой группы, но не из разных групп.
*/
/** Игнорируем warning о сравнении signed и unsigned.
* (Результат может быть некорректным.)
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsign-compare"
template<typename A, typename B>
struct EqualsNumImpl
{
static void vector_vector(const std::vector<A> & a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] == b[i];
}
static void vector_constant(const std::vector<A> & a, B b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] == b;
}
static void constant_vector(A a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = b.size();
for (size_t i = 0; i < size; ++i)
c[i] = a == b[i];
}
static void constant_constant(A a, B b, UInt8 & c)
{
c = a == b;
}
};
struct EqualsStringImpl
{
static void string_vector_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
c[i] = (i == 0)
? (a_offsets[0] == b_offsets[0] && !memcmp(&a_data[0], &b_data[0], a_offsets[0] - 1))
: (a_offsets[i] - a_offsets[i - 1] == b_offsets[i] - b_offsets[i - 1]
&& !memcmp(&a_data[a_offsets[i - 1]], &b_data[b_offsets[i - 1]], a_offsets[i] - a_offsets[i - 1] - 1));
}
static void string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
c[i] = (i == 0)
? (a_offsets[0] == b_n + 1 && !memcmp(&a_data[0], &b_data[0], b_n))
: (a_offsets[i] - a_offsets[i - 1] == b_n + 1
&& !memcmp(&a_data[a_offsets[i - 1]], &b_data[b_n * i], b_n));
}
static void string_vector_constant(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
ColumnString::Offset_t b_n = b.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
for (size_t i = 0; i < size; ++i)
c[i] = (i == 0)
? (a_offsets[0] == b_n + 1 && !memcmp(&a_data[0], b_data, b_n))
: (a_offsets[i] - a_offsets[i - 1] == b_n + 1
&& !memcmp(&a_data[a_offsets[i - 1]], b_data, b_n));
}
static void fixed_string_vector_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
for (size_t i = 0; i < size; ++i)
c[i] = (i == 0)
? (b_offsets[0] == a_n + 1 && !memcmp(&b_data[0], &a_data[0], a_n))
: (b_offsets[i] - b_offsets[i - 1] == a_n + 1
&& !memcmp(&b_data[b_offsets[i - 1]], &a_data[a_n * i], a_n));
}
static void fixed_string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
c[j] = a_n == b_n && !memcmp(&a_data[i], &b_data[i], a_n);
}
static void fixed_string_vector_constant(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
ColumnString::Offset_t b_n = b.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
c[j] = a_n == b_n && !memcmp(&a_data[i], b_data, a_n);
}
static void constant_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
ColumnString::Offset_t a_n = a.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
for (size_t i = 0; i < size; ++i)
c[i] = (i == 0)
? (b_offsets[0] == a_n + 1 && !memcmp(&b_data[0], a_data, a_n))
: (b_offsets[i] - b_offsets[i - 1] == a_n + 1
&& !memcmp(&b_data[b_offsets[i - 1]], a_data, a_n));
}
static void constant_fixed_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = b_data.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
ColumnString::Offset_t a_n = a.size();
for (size_t i = 0, j = 0; i < size; i += b_n, ++j)
c[j] = a_n == b_n && !memcmp(&b_data[i], a_data, b_n);
}
static void constant_constant(
const std::string & a,
const std::string & b,
UInt8 & c)
{
c = a == b;
}
};
template<typename A, typename B>
struct NotEqualsNumImpl
{
static void vector_vector(const std::vector<A> & a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] != b[i];
}
static void vector_constant(const std::vector<A> & a, B b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] != b;
}
static void constant_vector(A a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = b.size();
for (size_t i = 0; i < size; ++i)
c[i] = a != b[i];
}
static void constant_constant(A a, B b, UInt8 & c)
{
c = a != b;
}
};
struct NotEqualsStringImpl
{
static void string_vector_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
c[i] = !((i == 0)
? (a_offsets[0] == b_offsets[0] && !memcmp(&a_data[0], &b_data[0], a_offsets[0] - 1))
: (a_offsets[i] - a_offsets[i - 1] == b_offsets[i] - b_offsets[i - 1]
&& !memcmp(&a_data[a_offsets[i - 1]], &b_data[b_offsets[i - 1]], a_offsets[i] - a_offsets[i - 1] - 1)));
}
static void string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
c[i] = !((i == 0)
? (a_offsets[0] == b_n + 1 && !memcmp(&a_data[0], &b_data[0], b_n))
: (a_offsets[i] - a_offsets[i - 1] == b_n + 1
&& !memcmp(&a_data[a_offsets[i - 1]], &b_data[b_n * i], b_n)));
}
static void string_vector_constant(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
ColumnString::Offset_t b_n = b.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
for (size_t i = 0; i < size; ++i)
c[i] = !((i == 0)
? (a_offsets[0] == b_n + 1 && !memcmp(&a_data[0], b_data, b_n))
: (a_offsets[i] - a_offsets[i - 1] == b_n + 1
&& !memcmp(&a_data[a_offsets[i - 1]], b_data, b_n)));
}
static void fixed_string_vector_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
for (size_t i = 0; i < size; ++i)
c[i] = !((i == 0)
? (b_offsets[0] == a_n + 1 && !memcmp(&b_data[0], &a_data[0], a_n))
: (b_offsets[i] - b_offsets[i - 1] == a_n + 1
&& !memcmp(&b_data[b_offsets[i - 1]], &a_data[a_n * i], a_n)));
}
static void fixed_string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
c[j] = !(a_n == b_n && !memcmp(&a_data[i], &b_data[i], a_n));
}
static void fixed_string_vector_constant(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
ColumnString::Offset_t b_n = b.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
c[j] = !(a_n == b_n && !memcmp(&a_data[i], b_data, a_n));
}
static void constant_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
ColumnString::Offset_t a_n = a.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
for (size_t i = 0; i < size; ++i)
c[i] = !((i == 0)
? (b_offsets[0] == a_n + 1 && !memcmp(&b_data[0], a_data, a_n))
: (b_offsets[i] - b_offsets[i - 1] == a_n + 1
&& !memcmp(&b_data[b_offsets[i - 1]], a_data, a_n)));
}
static void constant_fixed_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = b_data.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
ColumnString::Offset_t a_n = a.size();
for (size_t i = 0, j = 0; i < size; i += b_n, ++j)
c[j] = !(a_n == b_n && !memcmp(&b_data[i], a_data, b_n));
}
static void constant_constant(
const std::string & a,
const std::string & b,
UInt8 & c)
{
c = !(a == b);
}
};
template<typename A, typename B>
struct LessNumImpl
{
static void vector_vector(const std::vector<A> & a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] < b[i];
}
static void vector_constant(const std::vector<A> & a, B b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] < b;
}
static void constant_vector(A a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = b.size();
for (size_t i = 0; i < size; ++i)
c[i] = a < b[i];
}
static void constant_constant(A a, B b, UInt8 & c)
{
c = a < b;
}
};
struct LessStringImpl
{
static void string_vector_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0], b_offsets[0]) - 1);
c[i] = res < 0 || (res == 0 && a_offsets[0] < b_offsets[0]);
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[b_offsets[i - 1]],
std::min(a_offsets[i] - a_offsets[i - 1], b_offsets[i] - b_offsets[i - 1]) - 1);
c[i] = res < 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] < b_offsets[i] - b_offsets[i - 1]);
}
}
}
static void string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0] - 1, b_n));
c[i] = res < 0 || (res == 0 && a_offsets[0] < b_n + 1);
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[i * b_n],
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = res < 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] < b_n + 1);
}
}
}
static void string_vector_constant(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
ColumnString::Offset_t b_n = b.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], b_data, std::min(a_offsets[0] - 1, b_n));
c[i] = res < 0 || (res == 0 && a_offsets[0] < b_n + 1);
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], b_data,
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = res < 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] < b_n + 1);
}
}
}
static void fixed_string_vector_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = res < 0 || (res == 0 && a_n + 1 < b_offsets[0]);
}
else
{
int res = memcmp(&a_data[i * a_n], &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = res < 0 || (res == 0 && a_n + 1 < b_offsets[i] - b_offsets[i - 1]);
}
}
}
static void fixed_string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], &b_data[i], std::min(a_n, b_n));
c[j] = res < 0 || (res == 0 && a_n < b_n);
}
}
static void fixed_string_vector_constant(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
ColumnString::Offset_t b_n = b.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], b_data, std::min(a_n, b_n));
c[j] = res < 0 || (res == 0 && a_n < b_n);
}
}
static void constant_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
ColumnString::Offset_t a_n = a.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(a_data, &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = res < 0 || (res == 0 && a_n + 1 < b_offsets[0]);
}
else
{
int res = memcmp(a_data, &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = res < 0 || (res == 0 && a_n + 1 < b_offsets[i] - b_offsets[i - 1]);
}
}
}
static void constant_fixed_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = b_data.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
ColumnString::Offset_t a_n = a.size();
for (size_t i = 0, j = 0; i < size; i += b_n, ++j)
{
int res = memcmp(a_data, &b_data[i], std::min(a_n, b_n));
c[j] = res < 0 || (res == 0 && b_n < a_n);
}
}
static void constant_constant(
const std::string & a,
const std::string & b,
UInt8 & c)
{
c = a < b;
}
};
template<typename A, typename B>
struct GreaterNumImpl
{
static void vector_vector(const std::vector<A> & a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] > b[i];
}
static void vector_constant(const std::vector<A> & a, B b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] > b;
}
static void constant_vector(A a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = b.size();
for (size_t i = 0; i < size; ++i)
c[i] = a > b[i];
}
static void constant_constant(A a, B b, UInt8 & c)
{
c = a > b;
}
};
struct GreaterStringImpl
{
static void string_vector_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0], b_offsets[0]) - 1);
c[i] = res > 0 || (res == 0 && a_offsets[0] > b_offsets[0]);
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[b_offsets[i - 1]],
std::min(a_offsets[i] - a_offsets[i - 1], b_offsets[i] - b_offsets[i - 1]) - 1);
c[i] = res > 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] > b_offsets[i] - b_offsets[i - 1]);
}
}
}
static void string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0] - 1, b_n));
c[i] = res > 0 || (res == 0 && a_offsets[0] > b_n + 1);
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[i * b_n],
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = res > 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] > b_n + 1);
}
}
}
static void string_vector_constant(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
ColumnString::Offset_t b_n = b.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], b_data, std::min(a_offsets[0] - 1, b_n));
c[i] = res > 0 || (res == 0 && a_offsets[0] > b_n + 1);
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], b_data,
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = res > 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] > b_n + 1);
}
}
}
static void fixed_string_vector_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = res > 0 || (res == 0 && a_n + 1 > b_offsets[0]);
}
else
{
int res = memcmp(&a_data[i * a_n], &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = res > 0 || (res == 0 && a_n + 1 > b_offsets[i] - b_offsets[i - 1]);
}
}
}
static void fixed_string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], &b_data[i], std::min(a_n, b_n));
c[j] = res > 0 || (res == 0 && a_n > b_n);
}
}
static void fixed_string_vector_constant(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
ColumnString::Offset_t b_n = b.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], b_data, std::min(a_n, b_n));
c[j] = res > 0 || (res == 0 && a_n > b_n);
}
}
static void constant_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
ColumnString::Offset_t a_n = a.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(a_data, &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = res > 0 || (res == 0 && a_n + 1 > b_offsets[0]);
}
else
{
int res = memcmp(a_data, &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = res > 0 || (res == 0 && a_n + 1 > b_offsets[i] - b_offsets[i - 1]);
}
}
}
static void constant_fixed_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = b_data.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
ColumnString::Offset_t a_n = a.size();
for (size_t i = 0, j = 0; i < size; i += b_n, ++j)
{
int res = memcmp(a_data, &b_data[i], std::min(a_n, b_n));
c[j] = res > 0 || (res == 0 && b_n > a_n);
}
}
static void constant_constant(
const std::string & a,
const std::string & b,
UInt8 & c)
{
c = a > b;
}
};
template<typename A, typename B>
struct LessOrEqualsNumImpl
{
static void vector_vector(const std::vector<A> & a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] <= b[i];
}
static void vector_constant(const std::vector<A> & a, B b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] <= b;
}
static void constant_vector(A a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = b.size();
for (size_t i = 0; i < size; ++i)
c[i] = a <= b[i];
}
static void constant_constant(A a, B b, UInt8 & c)
{
c = a <= b;
}
};
struct LessOrEqualsStringImpl
{
static void string_vector_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0], b_offsets[0]) - 1);
c[i] = !(res > 0 || (res == 0 && a_offsets[0] > b_offsets[0]));
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[b_offsets[i - 1]],
std::min(a_offsets[i] - a_offsets[i - 1], b_offsets[i] - b_offsets[i - 1]) - 1);
c[i] = !(res > 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] > b_offsets[i] - b_offsets[i - 1]));
}
}
}
static void string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0] - 1, b_n));
c[i] = !(res > 0 || (res == 0 && a_offsets[0] > b_n + 1));
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[i * b_n],
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = !(res > 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] > b_n + 1));
}
}
}
static void string_vector_constant(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
ColumnString::Offset_t b_n = b.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], b_data, std::min(a_offsets[0] - 1, b_n));
c[i] = !(res > 0 || (res == 0 && a_offsets[0] > b_n + 1));
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], b_data,
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = !(res > 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] > b_n + 1));
}
}
}
static void fixed_string_vector_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = !(res > 0 || (res == 0 && a_n + 1 > b_offsets[0]));
}
else
{
int res = memcmp(&a_data[i * a_n], &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = !(res > 0 || (res == 0 && a_n + 1 > b_offsets[i] - b_offsets[i - 1]));
}
}
}
static void fixed_string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], &b_data[i], std::min(a_n, b_n));
c[j] = !(res > 0 || (res == 0 && a_n > b_n));
}
}
static void fixed_string_vector_constant(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
ColumnString::Offset_t b_n = b.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], b_data, std::min(a_n, b_n));
c[j] = !(res > 0 || (res == 0 && a_n > b_n));
}
}
static void constant_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
ColumnString::Offset_t a_n = a.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(a_data, &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = !(res > 0 || (res == 0 && a_n + 1 > b_offsets[0]));
}
else
{
int res = memcmp(a_data, &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = !(res > 0 || (res == 0 && a_n + 1 > b_offsets[i] - b_offsets[i - 1]));
}
}
}
static void constant_fixed_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = b_data.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
ColumnString::Offset_t a_n = a.size();
for (size_t i = 0, j = 0; i < size; i += b_n, ++j)
{
int res = memcmp(a_data, &b_data[i], std::min(a_n, b_n));
c[j] = !(res > 0 || (res == 0 && b_n > a_n));
}
}
static void constant_constant(
const std::string & a,
const std::string & b,
UInt8 & c)
{
c = a <= b;
}
};
template<typename A, typename B>
struct GreaterOrEqualsNumImpl
{
static void vector_vector(const std::vector<A> & a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] >= b[i];
}
static void vector_constant(const std::vector<A> & a, B b, std::vector<UInt8> & c)
{
size_t size = a.size();
for (size_t i = 0; i < size; ++i)
c[i] = a[i] >= b;
}
static void constant_vector(A a, const std::vector<B> & b, std::vector<UInt8> & c)
{
size_t size = b.size();
for (size_t i = 0; i < size; ++i)
c[i] = a >= b[i];
}
static void constant_constant(A a, B b, UInt8 & c)
{
c = a >= b;
}
};
struct GreaterOrEqualsStringImpl
{
static void string_vector_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0], b_offsets[0]) - 1);
c[i] = !(res < 0 || (res == 0 && a_offsets[0] < b_offsets[0]));
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[b_offsets[i - 1]],
std::min(a_offsets[i] - a_offsets[i - 1], b_offsets[i] - b_offsets[i - 1]) - 1);
c[i] = !(res < 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] < b_offsets[i] - b_offsets[i - 1]));
}
}
}
static void string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(a_offsets[0] - 1, b_n));
c[i] = !(res < 0 || (res == 0 && a_offsets[0] < b_n + 1));
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], &b_data[i * b_n],
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = !(res < 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] < b_n + 1));
}
}
}
static void string_vector_constant(
const std::vector<UInt8> & a_data, const ColumnString::Offsets_t & a_offsets,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_offsets.size();
ColumnString::Offset_t b_n = b.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], b_data, std::min(a_offsets[0] - 1, b_n));
c[i] = !(res < 0 || (res == 0 && a_offsets[0] < b_n + 1));
}
else
{
int res = memcmp(&a_data[a_offsets[i - 1]], b_data,
std::min(a_offsets[i] - a_offsets[i - 1] - 1, b_n));
c[i] = !(res < 0 || (res == 0 && a_offsets[i] - a_offsets[i - 1] < b_n + 1));
}
}
}
static void fixed_string_vector_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(&a_data[0], &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = !(res < 0 || (res == 0 && a_n + 1 < b_offsets[0]));
}
else
{
int res = memcmp(&a_data[i * a_n], &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = !(res < 0 || (res == 0 && a_n + 1 < b_offsets[i] - b_offsets[i - 1]));
}
}
}
static void fixed_string_vector_fixed_string_vector(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], &b_data[i], std::min(a_n, b_n));
c[j] = !(res < 0 || (res == 0 && a_n < b_n));
}
}
static void fixed_string_vector_constant(
const std::vector<UInt8> & a_data, ColumnString::Offset_t a_n,
const std::string & b,
std::vector<UInt8> & c)
{
size_t size = a_data.size();
const UInt8 * b_data = reinterpret_cast<const UInt8 *>(b.data());
ColumnString::Offset_t b_n = b.size();
for (size_t i = 0, j = 0; i < size; i += a_n, ++j)
{
int res = memcmp(&a_data[i], b_data, std::min(a_n, b_n));
c[j] = !(res < 0 || (res == 0 && a_n < b_n));
}
}
static void constant_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, const ColumnString::Offsets_t & b_offsets,
std::vector<UInt8> & c)
{
size_t size = b_offsets.size();
ColumnString::Offset_t a_n = a.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
for (size_t i = 0; i < size; ++i)
{
if (i == 0)
{
int res = memcmp(a_data, &b_data[0], std::min(b_offsets[0] - 1, a_n));
c[i] = !(res < 0 || (res == 0 && a_n + 1 < b_offsets[0]));
}
else
{
int res = memcmp(a_data, &b_data[b_offsets[i - 1]],
std::min(b_offsets[i] - b_offsets[i - 1] - 1, a_n));
c[i] = !(res < 0 || (res == 0 && a_n + 1 < b_offsets[i] - b_offsets[i - 1]));
}
}
}
static void constant_fixed_string_vector(
const std::string & a,
const std::vector<UInt8> & b_data, ColumnString::Offset_t b_n,
std::vector<UInt8> & c)
{
size_t size = b_data.size();
const UInt8 * a_data = reinterpret_cast<const UInt8 *>(a.data());
ColumnString::Offset_t a_n = a.size();
for (size_t i = 0, j = 0; i < size; i += b_n, ++j)
{
int res = memcmp(a_data, &b_data[i], std::min(a_n, b_n));
c[j] = !(res < 0 || (res == 0 && b_n < a_n));
}
}
static void constant_constant(
const std::string & a,
const std::string & b,
UInt8 & c)
{
c = a >= b;
}
};
#pragma GCC diagnostic pop
template <
template <typename, typename> class NumImpl,
typename StringImpl,
typename Name>
class FunctionComparison : public IFunction
{
private:
template <typename T0, typename T1>
bool executeNumRightType(Block & block, const ColumnNumbers & arguments, size_t result, const ColumnVector<T0> * col_left)
{
if (ColumnVector<T1> * col_right = dynamic_cast<ColumnVector<T1> *>(&*block.getByPosition(arguments[1]).column))
{
ColumnUInt8 * col_res = new ColumnUInt8;
block.getByPosition(result).column = col_res;
ColumnUInt8::Container_t & vec_res = col_res->getData();
vec_res.resize(col_left->getData().size());
NumImpl<T0, T1>::vector_vector(col_left->getData(), col_right->getData(), vec_res);
return true;
}
else if (ColumnConst<T1> * col_right = dynamic_cast<ColumnConst<T1> *>(&*block.getByPosition(arguments[1]).column))
{
ColumnUInt8 * col_res = new ColumnUInt8;
block.getByPosition(result).column = col_res;
ColumnUInt8::Container_t & vec_res = col_res->getData();
vec_res.resize(col_left->getData().size());
NumImpl<T0, T1>::vector_constant(col_left->getData(), col_right->getData(), vec_res);
return true;
}
return false;
}
template <typename T0, typename T1>
bool executeNumConstRightType(Block & block, const ColumnNumbers & arguments, size_t result, const ColumnConst<T0> * col_left)
{
if (ColumnVector<T1> * col_right = dynamic_cast<ColumnVector<T1> *>(&*block.getByPosition(arguments[1]).column))
{
ColumnUInt8 * col_res = new ColumnUInt8;
block.getByPosition(result).column = col_res;
ColumnUInt8::Container_t & vec_res = col_res->getData();
vec_res.resize(col_left->size());
NumImpl<T0, T1>::constant_vector(col_left->getData(), col_right->getData(), vec_res);
return true;
}
else if (ColumnConst<T1> * col_right = dynamic_cast<ColumnConst<T1> *>(&*block.getByPosition(arguments[1]).column))
{
UInt8 res = 0;
NumImpl<T0, T1>::constant_constant(col_left->getData(), col_right->getData(), res);
ColumnConstUInt8 * col_res = new ColumnConstUInt8(col_left->size(), res);
block.getByPosition(result).column = col_res;
return true;
}
return false;
}
template <typename T0>
bool executeNumLeftType(Block & block, const ColumnNumbers & arguments, size_t result)
{
if (ColumnVector<T0> * col_left = dynamic_cast<ColumnVector<T0> *>(&*block.getByPosition(arguments[0]).column))
{
if ( executeNumRightType<T0, UInt8>(block, arguments, result, col_left)
|| executeNumRightType<T0, UInt16>(block, arguments, result, col_left)
|| executeNumRightType<T0, UInt32>(block, arguments, result, col_left)
|| executeNumRightType<T0, UInt64>(block, arguments, result, col_left)
|| executeNumRightType<T0, Int8>(block, arguments, result, col_left)
|| executeNumRightType<T0, Int16>(block, arguments, result, col_left)
|| executeNumRightType<T0, Int32>(block, arguments, result, col_left)
|| executeNumRightType<T0, Int64>(block, arguments, result, col_left)
|| executeNumRightType<T0, Float32>(block, arguments, result, col_left)
|| executeNumRightType<T0, Float64>(block, arguments, result, col_left))
return true;
else
throw Exception("Illegal column " + block.getByPosition(arguments[1]).column->getName()
+ " of second argument of function " + getName(),
ErrorCodes::ILLEGAL_COLUMN);
}
else if (ColumnConst<T0> * col_left = dynamic_cast<ColumnConst<T0> *>(&*block.getByPosition(arguments[0]).column))
{
if ( executeNumConstRightType<T0, UInt8>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, UInt16>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, UInt32>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, UInt64>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, Int8>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, Int16>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, Int32>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, Int64>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, Float32>(block, arguments, result, col_left)
|| executeNumConstRightType<T0, Float64>(block, arguments, result, col_left))
return true;
else
throw Exception("Illegal column " + block.getByPosition(arguments[1]).column->getName()
+ " of second argument of function " + getName(),
ErrorCodes::ILLEGAL_COLUMN);
}
return false;
}
void executeString(Block & block, const ColumnNumbers & arguments, size_t result)
{
IColumn * c0 = &*block.getByPosition(arguments[0]).column;
IColumn * c1 = &*block.getByPosition(arguments[1]).column;
ColumnString * c0_string = dynamic_cast<ColumnString *>(c0);
ColumnString * c1_string = dynamic_cast<ColumnString *>(c1);
ColumnFixedString * c0_fixed_string = dynamic_cast<ColumnFixedString *>(c0);
ColumnFixedString * c1_fixed_string = dynamic_cast<ColumnFixedString *>(c1);
ColumnConstString * c0_const = dynamic_cast<ColumnConstString *>(c0);
ColumnConstString * c1_const = dynamic_cast<ColumnConstString *>(c1);
if (c0_const && c1_const)
{
ColumnConstUInt8 * c_res = new ColumnConstUInt8(c0_const->size(), 0);
block.getByPosition(result).column = c_res;
StringImpl::constant_constant(c0_const->getData(), c1_const->getData(), c_res->getData());
}
else
{
ColumnUInt8 * c_res = new ColumnUInt8;
block.getByPosition(result).column = c_res;
ColumnUInt8::Container_t & vec_res = c_res->getData();
vec_res.resize(c0->size());
if (c0_string && c1_string)
StringImpl::string_vector_string_vector(
c0_string->getChars(), c0_string->getOffsets(),
c1_string->getChars(), c1_string->getOffsets(),
c_res->getData());
else if (c0_string && c1_fixed_string)
StringImpl::string_vector_fixed_string_vector(
c0_string->getChars(), c0_string->getOffsets(),
c1_fixed_string->getChars(), c1_fixed_string->getN(),
c_res->getData());
else if (c0_string && c1_const)
StringImpl::string_vector_constant(
c0_string->getChars(), c0_string->getOffsets(),
c1_const->getData(),
c_res->getData());
else if (c0_fixed_string && c1_string)
StringImpl::fixed_string_vector_string_vector(
c0_fixed_string->getChars(), c0_fixed_string->getN(),
c1_string->getChars(), c1_string->getOffsets(),
c_res->getData());
else if (c0_fixed_string && c1_fixed_string)
StringImpl::fixed_string_vector_fixed_string_vector(
c0_fixed_string->getChars(), c0_fixed_string->getN(),
c1_fixed_string->getChars(), c1_fixed_string->getN(),
c_res->getData());
else if (c0_fixed_string && c1_const)
StringImpl::fixed_string_vector_constant(
c0_fixed_string->getChars(), c0_fixed_string->getN(),
c1_const->getData(),
c_res->getData());
else if (c0_const && c1_string)
StringImpl::constant_string_vector(
c0_const->getData(),
c1_string->getChars(), c1_string->getOffsets(),
c_res->getData());
else if (c0_const && c1_fixed_string)
StringImpl::constant_fixed_string_vector(
c0_const->getData(),
c1_fixed_string->getChars(), c1_fixed_string->getN(),
c_res->getData());
else
throw Exception("Illegal columns "
+ block.getByPosition(arguments[0]).column->getName() + " and "
+ block.getByPosition(arguments[1]).column->getName()
+ " of arguments of function " + getName(),
ErrorCodes::ILLEGAL_COLUMN);
}
}
public:
/// Получить имя функции.
String getName() const
{
return Name::get();
}
/// Получить типы результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
DataTypePtr getReturnType(const DataTypes & arguments) const
{
if (arguments.size() != 2)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 2.",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (!( (arguments[0]->isNumeric() && arguments[1]->isNumeric())
|| ( (arguments[0]->getName() == "String" || arguments[0]->getName().substr(0, 11) == "FixedString")
&& (arguments[1]->getName() == "String" || arguments[1]->getName().substr(0, 11) == "FixedString"))
|| (arguments[0]->getName() == "Date" && arguments[1]->getName() == "Date")
|| (arguments[0]->getName() == "DateTime" && arguments[1]->getName() == "DateTime")))
throw Exception("Illegal types of arguments (" + arguments[0]->getName() + ", " + arguments[1]->getName() + ")"
" of function " + getName(), ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
return new DataTypeUInt8;
}
/// Выполнить функцию над блоком.
void execute(Block & block, const ColumnNumbers & arguments, size_t result)
{
if (block.getByPosition(arguments[0]).column->isNumeric())
{
if (!( executeNumLeftType<UInt8>(block, arguments, result)
|| executeNumLeftType<UInt16>(block, arguments, result)
|| executeNumLeftType<UInt32>(block, arguments, result)
|| executeNumLeftType<UInt64>(block, arguments, result)
|| executeNumLeftType<Int8>(block, arguments, result)
|| executeNumLeftType<Int16>(block, arguments, result)
|| executeNumLeftType<Int32>(block, arguments, result)
|| executeNumLeftType<Int64>(block, arguments, result)
|| executeNumLeftType<Float32>(block, arguments, result)
|| executeNumLeftType<Float64>(block, arguments, result)))
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
+ " of first argument of function " + getName(),
ErrorCodes::ILLEGAL_COLUMN);
}
else
executeString(block, arguments, result);
}
};
struct NameEquals { static const char * get() { return "equals"; } };
struct NameNotEquals { static const char * get() { return "notEquals"; } };
struct NameLess { static const char * get() { return "less"; } };
struct NameGreater { static const char * get() { return "greater"; } };
struct NameLessOrEquals { static const char * get() { return "lessOrEquals"; } };
struct NameGreaterOrEquals { static const char * get() { return "greaterOrEquals"; } };
typedef FunctionComparison<EqualsNumImpl, EqualsStringImpl, NameEquals> FunctionEquals;
typedef FunctionComparison<NotEqualsNumImpl, NotEqualsStringImpl, NameNotEquals> FunctionNotEquals;
typedef FunctionComparison<LessNumImpl, LessStringImpl, NameLess> FunctionLess;
typedef FunctionComparison<GreaterNumImpl, GreaterStringImpl, NameGreater> FunctionGreater;
typedef FunctionComparison<LessOrEqualsNumImpl, LessOrEqualsStringImpl, NameLessOrEquals> FunctionLessOrEquals;
typedef FunctionComparison<GreaterOrEqualsNumImpl, GreaterOrEqualsStringImpl, NameGreaterOrEquals> FunctionGreaterOrEquals;
}
Reference in New Issue View Git Blame Copy Permalink