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Moving around some code

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This commit is contained in:
akazz 2019-07-17 00:06:23 +03:00
parent df2d347617
commit f75585cd46
1 changed files with 47 additions and 46 deletions
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93
dbms/src/Functions/FunctionsLogical.cpp
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@ -91,6 +91,49 @@ void convertColumnToUInt8(const IColumn * column, UInt8Container & res)
}
/// TODO: Add a good comment here about what this is
using ValueGetter = std::function<Ternary::ResultType (size_t)>;
template <typename ... Types>
struct ValueGetterBuilderImpl;
template <typename Type, typename ...Types>
struct ValueGetterBuilderImpl<Type, Types...>
{
static ValueGetter build(const IColumn * x)
{
if (const auto nullable_column = typeid_cast<const ColumnNullable *>(x))
{
if (const auto nested_column = typeid_cast<const ColumnVector<Type> *>(nullable_column->getNestedColumnPtr().get()))
{
return [&null_data = nullable_column->getNullMapData(), &column_data = nested_column->getData()](size_t i)
{ return Ternary::makeValue(column_data[i], null_data[i]); };
}
else
return ValueGetterBuilderImpl<Types...>::build(x);
}
else if (const auto column = typeid_cast<const ColumnVector<Type> *>(x))
return [&column_data = column->getData()](size_t i) { return Ternary::makeValue(column_data[i]); };
else
return ValueGetterBuilderImpl<Types...>::build(x);
}
};
template <>
struct ValueGetterBuilderImpl<>
{
static ValueGetter build(const IColumn * x)
{
throw Exception(
std::string("Unknown numeric column of type: ") + demangle(typeid(x).name()),
ErrorCodes::LOGICAL_ERROR);
}
};
using ValueGetterBuilder =
ValueGetterBuilderImpl<UInt8, UInt16, UInt32, UInt64, Int8, Int16, Int32, Int64, Float32, Float64>;
template <typename Op, size_t N>
class AssociativeApplierImpl
{
@ -162,48 +205,6 @@ static bool extractConstColumns(ColumnRawPtrs & in, UInt8 & res)
}
/// TODO: Add a good comment here about what this is
using TValueGetter = std::function<Ternary::ResultType (size_t)>;
template <typename ... Types>
struct ValueGetterBuilderImpl;
template <typename Type, typename ...Types>
struct ValueGetterBuilderImpl<Type, Types...>
{
static TValueGetter build(const IColumn * x)
{
if (const auto nullable_column = typeid_cast<const ColumnNullable *>(x))
{
if (const auto nested_column = typeid_cast<const ColumnVector<Type> *>(nullable_column->getNestedColumnPtr().get()))
{
return [&null_data = nullable_column->getNullMapData(), &column_data = nested_column->getData()](size_t i)
{ return Ternary::makeValue(column_data[i], null_data[i]); };
}
else
return ValueGetterBuilderImpl<Types...>::build(x);
}
else if (const auto column = typeid_cast<const ColumnVector<Type> *>(x))
return [&column_data = column->getData()](size_t i) { return Ternary::makeValue(column_data[i]); };
else
return ValueGetterBuilderImpl<Types...>::build(x);
}
};
template <>
struct ValueGetterBuilderImpl<>
{
static TValueGetter build(const IColumn * x)
{
throw Exception(
std::string("Unknown numeric column of type: ") + demangle(typeid(x).name()),
ErrorCodes::LOGICAL_ERROR);
}
};
using ValueGetterBuilder =
ValueGetterBuilderImpl<UInt8, UInt16, UInt32, UInt64, Int8, Int16, Int32, Int64, Float32, Float64>;
template <typename Op, size_t N>
class AssociativeGenericApplierImpl
{
@ -229,7 +230,7 @@ public:
}
private:
const TValueGetter val_getter;
const ValueGetter val_getter;
const AssociativeGenericApplierImpl<Op, N - 1> next;
};
@ -251,8 +252,8 @@ public:
}
private:
const TValueGetter val_getter_L;
const TValueGetter val_getter_R;
const ValueGetter val_getter_L;
const ValueGetter val_getter_R;
};
template <typename Op>
@ -268,7 +269,7 @@ public:
inline ResultValueType apply(const size_t i) const { return val_getter(i); }
private:
const TValueGetter val_getter;
const ValueGetter val_getter;
};