mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-05 15:21:43 +00:00
100 lines
3.5 KiB
C++
100 lines
3.5 KiB
C++
#include <algorithm>
|
|
#include <Columns/ColumnConst.h>
|
|
#include "arrayEnumerateRanked.h"
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
namespace ErrorCodes
|
|
{
|
|
extern const int BAD_ARGUMENTS;
|
|
}
|
|
|
|
ArraysDepths getArraysDepths(const ColumnsWithTypeAndName & arguments)
|
|
{
|
|
const size_t num_arguments = arguments.size();
|
|
|
|
DepthType clear_depth = 1;
|
|
DepthTypes depths;
|
|
|
|
/// function signature is the following:
|
|
/// f(c0, arr1, c1, arr2, c2, ...)
|
|
///
|
|
/// c0 is something called "clear_depth" here.
|
|
/// cN... - how deep to look into the corresponding arrN, (called "depths" here)
|
|
/// may be omitted - then it means "look at the full depth".
|
|
|
|
size_t array_num = 0;
|
|
DepthType prev_array_depth = 0;
|
|
for (size_t i = 0; i < num_arguments; ++i)
|
|
{
|
|
const DataTypePtr & type = arguments[i].type;
|
|
const DataTypeArray * type_array = typeid_cast<const DataTypeArray *>(type.get());
|
|
|
|
if (type_array)
|
|
{
|
|
if (depths.size() < array_num && prev_array_depth)
|
|
{
|
|
depths.emplace_back(prev_array_depth);
|
|
prev_array_depth = 0;
|
|
}
|
|
|
|
prev_array_depth = type_array->getNumberOfDimensions();
|
|
++array_num;
|
|
}
|
|
else
|
|
{
|
|
const auto & depth_column = arguments[i].column;
|
|
|
|
if (depth_column && depth_column->isColumnConst())
|
|
{
|
|
UInt64 value = static_cast<const ColumnConst &>(*depth_column).getValue<UInt64>();
|
|
if (!value)
|
|
throw Exception("Incorrect arguments for function arrayEnumerateUniqRanked or arrayEnumerateDenseRanked: depth ("
|
|
+ std::to_string(value) + ") cannot be less or equal 0.",
|
|
ErrorCodes::BAD_ARGUMENTS);
|
|
|
|
if (i == 0)
|
|
{
|
|
clear_depth = value;
|
|
}
|
|
else
|
|
{
|
|
if (depths.size() >= array_num)
|
|
throw Exception("Incorrect arguments for function arrayEnumerateUniqRanked or arrayEnumerateDenseRanked: depth ("
|
|
+ std::to_string(value) + ") for missing array.",
|
|
ErrorCodes::BAD_ARGUMENTS);
|
|
if (value > prev_array_depth)
|
|
throw Exception(
|
|
"Arguments for function arrayEnumerateUniqRanked/arrayEnumerateDenseRanked incorrect: depth="
|
|
+ std::to_string(value) + " for array with depth=" + std::to_string(prev_array_depth) + ".",
|
|
ErrorCodes::BAD_ARGUMENTS);
|
|
|
|
depths.emplace_back(value);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (depths.size() < array_num)
|
|
depths.emplace_back(prev_array_depth);
|
|
|
|
if (depths.empty())
|
|
throw Exception("Incorrect arguments for function arrayEnumerateUniqRanked or arrayEnumerateDenseRanked: at least one array should be passed.",
|
|
ErrorCodes::BAD_ARGUMENTS);
|
|
|
|
DepthType max_array_depth = 0;
|
|
for (auto depth : depths)
|
|
max_array_depth = std::max(depth, max_array_depth);
|
|
|
|
if (clear_depth > max_array_depth)
|
|
throw Exception("Incorrect arguments for function arrayEnumerateUniqRanked or arrayEnumerateDenseRanked: clear_depth ("
|
|
+ std::to_string(clear_depth) + ") cant be larger than max_array_depth (" + std::to_string(max_array_depth) + ").",
|
|
ErrorCodes::BAD_ARGUMENTS);
|
|
|
|
return {clear_depth, depths, max_array_depth};
|
|
}
|
|
|
|
}
|