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Revise
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2b3ce910c6
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@ -318,18 +318,15 @@ public:
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virtual void updatePermutation(bool reverse, size_t limit, int nan_direction_hint, Permutation & res, EqualRanges & equal_ranges) const = 0;
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virtual void updatePermutation(bool reverse, size_t limit, int nan_direction_hint, Permutation & res, EqualRanges & equal_ranges) const = 0;
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/** Equivalent to getPermutation and updatePermutation but collator is used to compare values.
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/** Equivalent to getPermutation and updatePermutation but collator is used to compare values.
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* Overrides in String, LowCardinality(String), Nullable(String) and for Array and Tuple, containing them.
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* Supported for String, LowCardinality(String), Nullable(String) and for Array and Tuple, containing them.
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*/
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*/
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virtual void
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virtual void getPermutationWithCollation(const Collator &, bool, size_t, int, Permutation &) const
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getPermutationWithCollation(const Collator &, bool reverse, size_t limit, int nan_direction_hint, Permutation & res) const
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{
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{
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getPermutation(reverse, limit, nan_direction_hint, res);
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throw Exception("Collations could be specified only for String, LowCardinality(String), Nullable(String) or for Array or Tuple, containing them.", ErrorCodes::BAD_COLLATION);
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}
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}
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virtual void updatePermutationWithCollation(const Collator &, bool, size_t, int, Permutation &, EqualRanges&) const
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virtual void updatePermutationWithCollation(
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const Collator &, bool reverse, size_t limit, int nan_direction_hint, Permutation & res, EqualRanges & equal_ranges) const
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{
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{
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updatePermutation(reverse, limit, nan_direction_hint, res, equal_ranges);
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throw Exception("Collations could be specified only for String, LowCardinality(String), Nullable(String) or for Array or Tuple, containing them.", ErrorCodes::BAD_COLLATION);
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}
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}
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/** Copies each element according offsets parameter.
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/** Copies each element according offsets parameter.
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@ -27,7 +27,7 @@ static bool isCollationRequired(const SortColumnDescription & description)
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struct ColumnWithSortDescription
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struct ColumnWithSortDescription
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{
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{
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const IColumn * column = nullptr;
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const IColumn * column = nullptr;
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const SortColumnDescription * description = nullptr;
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SortColumnDescription description;
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/// It means, that this column is ColumnConst
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/// It means, that this column is ColumnConst
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bool column_const = false;
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bool column_const = false;
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@ -35,14 +35,18 @@ struct ColumnWithSortDescription
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using ColumnsWithSortDescriptions = std::vector<ColumnWithSortDescription>;
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using ColumnsWithSortDescriptions = std::vector<ColumnWithSortDescription>;
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void flattenTupleColumnRecursively(
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void flattenTupleColumnRecursively(
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ColumnsWithSortDescriptions & res, const ColumnTuple * tuple, const SortColumnDescription * description, bool is_constant)
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ColumnsWithSortDescriptions & res, const ColumnTuple * tuple, const SortColumnDescription & description, bool has_collation)
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{
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{
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for (const auto & column : tuple->getColumns())
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for (const auto & column : tuple->getColumns())
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{
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{
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if (const auto * subtuple = typeid_cast<const ColumnTuple *>(column.get()))
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if (const auto * subtuple = typeid_cast<const ColumnTuple *>(column.get()))
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flattenTupleColumnRecursively(res, subtuple, description, is_constant);
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flattenTupleColumnRecursively(res, subtuple, description, has_collation);
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else
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else
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res.emplace_back(ColumnWithSortDescription{column.get(), description, is_constant});
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{
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res.emplace_back(ColumnWithSortDescription{column.get(), description, isColumnConst(*column)});
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if (has_collation && !res.back().column->isCollationSupported())
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res.back().description.collator = nullptr;
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}
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}
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}
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}
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}
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@ -67,9 +71,9 @@ ColumnsWithSortDescriptions getColumnsWithSortDescription(const Block & block, c
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ErrorCodes::BAD_COLLATION);
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ErrorCodes::BAD_COLLATION);
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}
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}
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if (const auto * tuple = typeid_cast<const ColumnTuple *>(column))
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if (const auto * tuple = typeid_cast<const ColumnTuple *>(column))
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flattenTupleColumnRecursively(res, tuple, &description[i], isColumnConst(*column));
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flattenTupleColumnRecursively(res, tuple, description[i], isCollationRequired(description[i]));
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else
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else
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res.emplace_back(ColumnWithSortDescription{column, &description[i], isColumnConst(*column)});
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res.emplace_back(ColumnWithSortDescription{column, description[i], isColumnConst(*column)});
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}
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}
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return res;
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return res;
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}
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}
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@ -88,7 +92,7 @@ struct PartialSortingLess
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if (elem.column_const)
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if (elem.column_const)
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res = 0;
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res = 0;
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else
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else
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res = elem.description->direction * elem.column->compareAt(a, b, *elem.column, elem.description->nulls_direction);
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res = elem.description.direction * elem.column->compareAt(a, b, *elem.column, elem.description.nulls_direction);
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if (res < 0)
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if (res < 0)
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return true;
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return true;
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else if (res > 0)
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else if (res > 0)
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@ -118,13 +122,13 @@ struct PartialSortingLessWithCollation
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{
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{
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res = 0;
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res = 0;
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}
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}
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else if (isCollationRequired(*elem.description))
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else if (isCollationRequired(elem.description))
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{
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{
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res = elem.column->compareAtWithCollation(a, b, *elem.column, elem.description->nulls_direction, *elem.description->collator);
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res = elem.column->compareAtWithCollation(a, b, *elem.column, elem.description.nulls_direction, *elem.description.collator);
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}
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}
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else
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else
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res = elem.column->compareAt(a, b, *elem.column, elem.description->nulls_direction);
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res = elem.column->compareAt(a, b, *elem.column, elem.description.nulls_direction);
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res *= elem.description->direction;
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res *= elem.description.direction;
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if (res < 0)
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if (res < 0)
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return true;
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return true;
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else if (res > 0)
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else if (res > 0)
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@ -156,13 +160,13 @@ void sortBlock(Block & block, const SortDescription & description, UInt64 limit)
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/// If only one column to sort by
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/// If only one column to sort by
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if (columns_with_sort_desc.size() == 1)
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if (columns_with_sort_desc.size() == 1)
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{
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{
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bool reverse = columns_with_sort_desc[0].description->direction == -1;
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bool reverse = columns_with_sort_desc[0].description.direction == -1;
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const IColumn * column = columns_with_sort_desc[0].column;
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const IColumn * column = columns_with_sort_desc[0].column;
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if (isCollationRequired(description[0]))
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if (isCollationRequired(description[0]))
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column->getPermutationWithCollation(*description[0].collator, reverse, limit, description[0].nulls_direction, perm);
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column->getPermutationWithCollation(*description[0].collator, reverse, limit, description[0].nulls_direction, perm);
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else
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else
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{
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{
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int nan_direction_hint = columns_with_sort_desc[0].description->nulls_direction;
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int nan_direction_hint = columns_with_sort_desc[0].description.nulls_direction;
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column->getPermutation(reverse, limit, nan_direction_hint, perm);
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column->getPermutation(reverse, limit, nan_direction_hint, perm);
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}
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}
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}
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}
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@ -189,20 +193,20 @@ void sortBlock(Block & block, const SortDescription & description, UInt64 limit)
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if (column.column_const)
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if (column.column_const)
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continue;
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continue;
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if (isCollationRequired(*column.description))
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if (isCollationRequired(column.description))
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{
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{
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column.column->updatePermutationWithCollation(
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column.column->updatePermutationWithCollation(
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*column.description->collator,
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*column.description.collator,
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column.description->direction < 0,
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column.description.direction < 0,
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limit,
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limit,
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column.description->nulls_direction,
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column.description.nulls_direction,
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perm,
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perm,
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ranges);
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ranges);
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}
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}
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else
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else
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{
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{
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column.column->updatePermutation(
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column.column->updatePermutation(
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column.description->direction < 0, limit, column.description->nulls_direction, perm, ranges);
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column.description.direction < 0, limit, column.description.nulls_direction, perm, ranges);
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}
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}
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}
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}
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}
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}
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