ClickHouse/dbms/src/Functions/FunctionsComparison.cpp
2016-08-05 15:30:56 +03:00

68 lines
2.4 KiB
C++

#include <DB/Functions/FunctionFactory.h>
#include <DB/Functions/FunctionsComparison.h>
namespace DB
{
void registerFunctionsComparison(FunctionFactory & factory)
{
factory.registerFunction<FunctionEquals>();
factory.registerFunction<FunctionNotEquals>();
factory.registerFunction<FunctionLess>();
factory.registerFunction<FunctionGreater>();
factory.registerFunction<FunctionLessOrEquals>();
factory.registerFunction<FunctionGreaterOrEquals>();
}
template <>
void FunctionComparison<EqualsOp, NameEquals>::executeTupleImpl(
Block & block, size_t result, const ColumnTuple * x, const ColumnTuple * y, size_t tuple_size)
{
return executeTupleEqualityImpl<FunctionComparison<EqualsOp, NameEquals>, FunctionAnd>(block, result, x, y, tuple_size);
}
template <>
void FunctionComparison<NotEqualsOp, NameNotEquals>::executeTupleImpl(
Block & block, size_t result, const ColumnTuple * x, const ColumnTuple * y, size_t tuple_size)
{
return executeTupleEqualityImpl<FunctionComparison<NotEqualsOp, NameNotEquals>, FunctionOr>(block, result, x, y, tuple_size);
}
template <>
void FunctionComparison<LessOp, NameLess>::executeTupleImpl(
Block & block, size_t result, const ColumnTuple * x, const ColumnTuple * y, size_t tuple_size)
{
return executeTupleLessGreaterImpl<
FunctionComparison<LessOp, NameLess>,
FunctionComparison<LessOp, NameLess>>(block, result, x, y, tuple_size);
}
template <>
void FunctionComparison<GreaterOp, NameGreater>::executeTupleImpl(
Block & block, size_t result, const ColumnTuple * x, const ColumnTuple * y, size_t tuple_size)
{
return executeTupleLessGreaterImpl<
FunctionComparison<GreaterOp, NameGreater>,
FunctionComparison<GreaterOp, NameGreater>>(block, result, x, y, tuple_size);
}
template <>
void FunctionComparison<LessOrEqualsOp, NameLessOrEquals>::executeTupleImpl(
Block & block, size_t result, const ColumnTuple * x, const ColumnTuple * y, size_t tuple_size)
{
return executeTupleLessGreaterImpl<
FunctionComparison<LessOp, NameLess>,
FunctionComparison<LessOrEqualsOp, NameLessOrEquals>>(block, result, x, y, tuple_size);
}
template <>
void FunctionComparison<GreaterOrEqualsOp, NameGreaterOrEquals>::executeTupleImpl(
Block & block, size_t result, const ColumnTuple * x, const ColumnTuple * y, size_t tuple_size)
{
return executeTupleLessGreaterImpl<
FunctionComparison<GreaterOp, NameGreater>,
FunctionComparison<GreaterOrEqualsOp, NameGreaterOrEquals>>(block, result, x, y, tuple_size);
}
}