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591 lines
17 KiB
C++
591 lines
17 KiB
C++
#include <Storages/StorageInMemoryMetadata.h>
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#include <sparsehash/dense_hash_map>
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#include <sparsehash/dense_hash_set>
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#include <Common/quoteString.h>
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#include <Common/StringUtils/StringUtils.h>
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#include <Core/ColumnWithTypeAndName.h>
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#include <IO/ReadBufferFromString.h>
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#include <IO/ReadHelpers.h>
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#include <IO/Operators.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int COLUMN_QUERIED_MORE_THAN_ONCE;
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extern const int DUPLICATE_COLUMN;
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extern const int EMPTY_LIST_OF_COLUMNS_QUERIED;
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extern const int NO_SUCH_COLUMN_IN_TABLE;
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extern const int NOT_FOUND_COLUMN_IN_BLOCK;
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extern const int TYPE_MISMATCH;
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extern const int EMPTY_LIST_OF_COLUMNS_PASSED;
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}
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StorageInMemoryMetadata::StorageInMemoryMetadata(const StorageInMemoryMetadata & other)
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: columns(other.columns)
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, secondary_indices(other.secondary_indices)
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, constraints(other.constraints)
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, partition_key(other.partition_key)
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, primary_key(other.primary_key)
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, sorting_key(other.sorting_key)
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, sampling_key(other.sampling_key)
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, column_ttls_by_name(other.column_ttls_by_name)
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, table_ttl(other.table_ttl)
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, settings_changes(other.settings_changes ? other.settings_changes->clone() : nullptr)
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, select(other.select)
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{
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}
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StorageInMemoryMetadata & StorageInMemoryMetadata::operator=(const StorageInMemoryMetadata & other)
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{
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if (&other == this)
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return *this;
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columns = other.columns;
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secondary_indices = other.secondary_indices;
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constraints = other.constraints;
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partition_key = other.partition_key;
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primary_key = other.primary_key;
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sorting_key = other.sorting_key;
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sampling_key = other.sampling_key;
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column_ttls_by_name = other.column_ttls_by_name;
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table_ttl = other.table_ttl;
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if (other.settings_changes)
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settings_changes = other.settings_changes->clone();
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else
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settings_changes.reset();
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select = other.select;
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return *this;
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}
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void StorageInMemoryMetadata::setColumns(ColumnsDescription columns_)
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{
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if (columns_.getAllPhysical().empty())
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throw Exception("Empty list of columns passed", ErrorCodes::EMPTY_LIST_OF_COLUMNS_PASSED);
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columns = std::move(columns_);
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}
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void StorageInMemoryMetadata::setSecondaryIndices(IndicesDescription secondary_indices_)
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{
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secondary_indices = std::move(secondary_indices_);
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}
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void StorageInMemoryMetadata::setConstraints(ConstraintsDescription constraints_)
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{
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constraints = std::move(constraints_);
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}
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void StorageInMemoryMetadata::setTableTTLs(const TTLTableDescription & table_ttl_)
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{
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table_ttl = table_ttl_;
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}
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void StorageInMemoryMetadata::setColumnTTLs(const TTLColumnsDescription & column_ttls_by_name_)
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{
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column_ttls_by_name = column_ttls_by_name_;
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}
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void StorageInMemoryMetadata::setSettingsChanges(const ASTPtr & settings_changes_)
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{
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if (settings_changes_)
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settings_changes = settings_changes_;
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else
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settings_changes = nullptr;
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}
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void StorageInMemoryMetadata::setSelectQuery(const SelectQueryDescription & select_)
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{
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select = select_;
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}
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const ColumnsDescription & StorageInMemoryMetadata::getColumns() const
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{
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return columns;
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}
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const IndicesDescription & StorageInMemoryMetadata::getSecondaryIndices() const
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{
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return secondary_indices;
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}
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bool StorageInMemoryMetadata::hasSecondaryIndices() const
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{
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return !secondary_indices.empty();
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}
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const ConstraintsDescription & StorageInMemoryMetadata::getConstraints() const
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{
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return constraints;
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}
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TTLTableDescription StorageInMemoryMetadata::getTableTTLs() const
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{
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return table_ttl;
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}
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bool StorageInMemoryMetadata::hasAnyTableTTL() const
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{
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return hasAnyMoveTTL() || hasRowsTTL() || hasAnyRecompressionTTL();
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}
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TTLColumnsDescription StorageInMemoryMetadata::getColumnTTLs() const
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{
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return column_ttls_by_name;
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}
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bool StorageInMemoryMetadata::hasAnyColumnTTL() const
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{
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return !column_ttls_by_name.empty();
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}
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TTLDescription StorageInMemoryMetadata::getRowsTTL() const
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{
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return table_ttl.rows_ttl;
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}
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bool StorageInMemoryMetadata::hasRowsTTL() const
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{
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return table_ttl.rows_ttl.expression != nullptr;
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}
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TTLDescriptions StorageInMemoryMetadata::getMoveTTLs() const
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{
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return table_ttl.move_ttl;
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}
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bool StorageInMemoryMetadata::hasAnyMoveTTL() const
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{
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return !table_ttl.move_ttl.empty();
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}
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TTLDescriptions StorageInMemoryMetadata::getRecompressionTTLs() const
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{
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return table_ttl.recompression_ttl;
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}
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bool StorageInMemoryMetadata::hasAnyRecompressionTTL() const
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{
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return !table_ttl.recompression_ttl.empty();
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}
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ColumnDependencies StorageInMemoryMetadata::getColumnDependencies(const NameSet & updated_columns) const
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{
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if (updated_columns.empty())
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return {};
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ColumnDependencies res;
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NameSet indices_columns;
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NameSet required_ttl_columns;
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NameSet updated_ttl_columns;
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auto add_dependent_columns = [&updated_columns](const auto & expression, auto & to_set)
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{
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auto requiered_columns = expression->getRequiredColumns();
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for (const auto & dependency : requiered_columns)
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{
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if (updated_columns.count(dependency))
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{
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to_set.insert(requiered_columns.begin(), requiered_columns.end());
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return true;
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}
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}
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return false;
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};
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for (const auto & index : getSecondaryIndices())
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add_dependent_columns(index.expression, indices_columns);
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if (hasRowsTTL())
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{
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auto rows_expression = getRowsTTL().expression;
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if (add_dependent_columns(rows_expression, required_ttl_columns))
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{
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/// Filter all columns, if rows TTL expression have to be recalculated.
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for (const auto & column : getColumns().getAllPhysical())
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updated_ttl_columns.insert(column.name);
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}
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}
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for (const auto & entry : getRecompressionTTLs())
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add_dependent_columns(entry.expression, required_ttl_columns);
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for (const auto & [name, entry] : getColumnTTLs())
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{
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if (add_dependent_columns(entry.expression, required_ttl_columns))
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updated_ttl_columns.insert(name);
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}
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for (const auto & entry : getMoveTTLs())
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add_dependent_columns(entry.expression, required_ttl_columns);
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for (const auto & column : indices_columns)
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res.emplace(column, ColumnDependency::SKIP_INDEX);
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for (const auto & column : required_ttl_columns)
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res.emplace(column, ColumnDependency::TTL_EXPRESSION);
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for (const auto & column : updated_ttl_columns)
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res.emplace(column, ColumnDependency::TTL_TARGET);
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return res;
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}
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Block StorageInMemoryMetadata::getSampleBlockNonMaterialized() const
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{
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Block res;
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for (const auto & column : getColumns().getOrdinary())
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res.insert({column.type->createColumn(), column.type, column.name});
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return res;
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}
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Block StorageInMemoryMetadata::getSampleBlockWithVirtuals(const NamesAndTypesList & virtuals) const
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{
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auto res = getSampleBlock();
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/// Virtual columns must be appended after ordinary, because user can
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/// override them.
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for (const auto & column : virtuals)
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res.insert({column.type->createColumn(), column.type, column.name});
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return res;
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}
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Block StorageInMemoryMetadata::getSampleBlock() const
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{
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Block res;
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for (const auto & column : getColumns().getAllPhysical())
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res.insert({column.type->createColumn(), column.type, column.name});
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return res;
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}
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Block StorageInMemoryMetadata::getSampleBlockForColumns(
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const Names & column_names, const NamesAndTypesList & virtuals, const StorageID & storage_id) const
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{
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Block res;
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std::unordered_map<String, DataTypePtr> columns_map;
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auto all_columns = getColumns().getAllWithSubcolumns();
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for (const auto & elem : all_columns)
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columns_map.emplace(elem.name, elem.type);
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/// Virtual columns must be appended after ordinary, because user can
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/// override them.
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for (const auto & column : virtuals)
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columns_map.emplace(column.name, column.type);
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for (const auto & name : column_names)
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{
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auto it = columns_map.find(name);
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if (it != columns_map.end())
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{
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res.insert({it->second->createColumn(), it->second, it->first});
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}
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else
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{
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throw Exception(
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"Column " + backQuote(name) + " not found in table " + storage_id.getNameForLogs(),
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ErrorCodes::NOT_FOUND_COLUMN_IN_BLOCK);
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}
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}
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return res;
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}
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const KeyDescription & StorageInMemoryMetadata::getPartitionKey() const
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{
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return partition_key;
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}
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bool StorageInMemoryMetadata::isPartitionKeyDefined() const
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{
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return partition_key.definition_ast != nullptr;
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}
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bool StorageInMemoryMetadata::hasPartitionKey() const
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{
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return !partition_key.column_names.empty();
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}
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Names StorageInMemoryMetadata::getColumnsRequiredForPartitionKey() const
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{
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if (hasPartitionKey())
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return partition_key.expression->getRequiredColumns();
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return {};
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}
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const KeyDescription & StorageInMemoryMetadata::getSortingKey() const
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{
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return sorting_key;
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}
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bool StorageInMemoryMetadata::isSortingKeyDefined() const
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{
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return sorting_key.definition_ast != nullptr;
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}
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bool StorageInMemoryMetadata::hasSortingKey() const
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{
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return !sorting_key.column_names.empty();
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}
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Names StorageInMemoryMetadata::getColumnsRequiredForSortingKey() const
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{
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if (hasSortingKey())
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return sorting_key.expression->getRequiredColumns();
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return {};
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}
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Names StorageInMemoryMetadata::getSortingKeyColumns() const
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{
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if (hasSortingKey())
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return sorting_key.column_names;
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return {};
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}
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const KeyDescription & StorageInMemoryMetadata::getSamplingKey() const
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{
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return sampling_key;
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}
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bool StorageInMemoryMetadata::isSamplingKeyDefined() const
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{
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return sampling_key.definition_ast != nullptr;
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}
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bool StorageInMemoryMetadata::hasSamplingKey() const
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{
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return !sampling_key.column_names.empty();
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}
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Names StorageInMemoryMetadata::getColumnsRequiredForSampling() const
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{
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if (hasSamplingKey())
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return sampling_key.expression->getRequiredColumns();
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return {};
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}
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const KeyDescription & StorageInMemoryMetadata::getPrimaryKey() const
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{
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return primary_key;
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}
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bool StorageInMemoryMetadata::isPrimaryKeyDefined() const
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{
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return primary_key.definition_ast != nullptr;
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}
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bool StorageInMemoryMetadata::hasPrimaryKey() const
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{
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return !primary_key.column_names.empty();
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}
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Names StorageInMemoryMetadata::getColumnsRequiredForPrimaryKey() const
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{
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if (hasPrimaryKey())
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return primary_key.expression->getRequiredColumns();
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return {};
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}
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Names StorageInMemoryMetadata::getPrimaryKeyColumns() const
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{
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if (!primary_key.column_names.empty())
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return primary_key.column_names;
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return {};
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}
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ASTPtr StorageInMemoryMetadata::getSettingsChanges() const
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{
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if (settings_changes)
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return settings_changes->clone();
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return nullptr;
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}
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const SelectQueryDescription & StorageInMemoryMetadata::getSelectQuery() const
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{
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return select;
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}
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bool StorageInMemoryMetadata::hasSelectQuery() const
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{
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return select.select_query != nullptr;
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}
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namespace
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{
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#if !defined(ARCADIA_BUILD)
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using NamesAndTypesMap = google::dense_hash_map<StringRef, const IDataType *, StringRefHash>;
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using UniqueStrings = google::dense_hash_set<StringRef, StringRefHash>;
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#else
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using NamesAndTypesMap = google::sparsehash::dense_hash_map<StringRef, const IDataType *, StringRefHash>;
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using UniqueStrings = google::sparsehash::dense_hash_set<StringRef, StringRefHash>;
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#endif
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String listOfColumns(const NamesAndTypesList & available_columns)
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{
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WriteBufferFromOwnString ss;
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for (auto it = available_columns.begin(); it != available_columns.end(); ++it)
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{
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if (it != available_columns.begin())
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ss << ", ";
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ss << it->name;
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}
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return ss.str();
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}
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NamesAndTypesMap getColumnsMap(const NamesAndTypesList & columns)
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{
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NamesAndTypesMap res;
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res.set_empty_key(StringRef());
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for (const auto & column : columns)
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res.insert({column.name, column.type.get()});
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return res;
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}
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UniqueStrings initUniqueStrings()
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{
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UniqueStrings strings;
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strings.set_empty_key(StringRef());
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return strings;
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}
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}
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void StorageInMemoryMetadata::check(const Names & column_names, const NamesAndTypesList & virtuals, const StorageID & storage_id) const
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{
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NamesAndTypesList available_columns = getColumns().getAllWithSubcolumns();
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available_columns.insert(available_columns.end(), virtuals.begin(), virtuals.end());
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const String list_of_columns = listOfColumns(available_columns);
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if (column_names.empty())
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throw Exception("Empty list of columns queried. There are columns: " + list_of_columns, ErrorCodes::EMPTY_LIST_OF_COLUMNS_QUERIED);
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const auto columns_map = getColumnsMap(available_columns);
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auto unique_names = initUniqueStrings();
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for (const auto & name : column_names)
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{
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if (columns_map.end() == columns_map.find(name))
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throw Exception(
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"There is no column with name " + backQuote(name) + " in table " + storage_id.getNameForLogs() + ". There are columns: " + list_of_columns,
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ErrorCodes::NO_SUCH_COLUMN_IN_TABLE);
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if (unique_names.end() != unique_names.find(name))
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throw Exception("Column " + name + " queried more than once", ErrorCodes::COLUMN_QUERIED_MORE_THAN_ONCE);
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unique_names.insert(name);
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}
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}
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void StorageInMemoryMetadata::check(const NamesAndTypesList & provided_columns) const
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{
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const NamesAndTypesList & available_columns = getColumns().getAllPhysical();
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const auto columns_map = getColumnsMap(available_columns);
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auto unique_names = initUniqueStrings();
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for (const NameAndTypePair & column : provided_columns)
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{
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auto it = columns_map.find(column.name);
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if (columns_map.end() == it)
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throw Exception(
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"There is no column with name " + column.name + ". There are columns: " + listOfColumns(available_columns),
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ErrorCodes::NO_SUCH_COLUMN_IN_TABLE);
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if (!column.type->equals(*it->second))
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throw Exception(
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"Type mismatch for column " + column.name + ". Column has type " + it->second->getName() + ", got type "
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+ column.type->getName(),
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ErrorCodes::TYPE_MISMATCH);
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if (unique_names.end() != unique_names.find(column.name))
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throw Exception("Column " + column.name + " queried more than once", ErrorCodes::COLUMN_QUERIED_MORE_THAN_ONCE);
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unique_names.insert(column.name);
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}
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}
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void StorageInMemoryMetadata::check(const NamesAndTypesList & provided_columns, const Names & column_names) const
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{
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const NamesAndTypesList & available_columns = getColumns().getAllPhysical();
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const auto available_columns_map = getColumnsMap(available_columns);
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const auto & provided_columns_map = getColumnsMap(provided_columns);
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if (column_names.empty())
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throw Exception(
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"Empty list of columns queried. There are columns: " + listOfColumns(available_columns),
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ErrorCodes::EMPTY_LIST_OF_COLUMNS_QUERIED);
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auto unique_names = initUniqueStrings();
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for (const String & name : column_names)
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{
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auto it = provided_columns_map.find(name);
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if (provided_columns_map.end() == it)
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continue;
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auto jt = available_columns_map.find(name);
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if (available_columns_map.end() == jt)
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throw Exception(
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"There is no column with name " + name + ". There are columns: " + listOfColumns(available_columns),
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ErrorCodes::NO_SUCH_COLUMN_IN_TABLE);
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if (!it->second->equals(*jt->second))
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throw Exception(
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"Type mismatch for column " + name + ". Column has type " + jt->second->getName() + ", got type " + it->second->getName(),
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ErrorCodes::TYPE_MISMATCH);
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if (unique_names.end() != unique_names.find(name))
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throw Exception("Column " + name + " queried more than once", ErrorCodes::COLUMN_QUERIED_MORE_THAN_ONCE);
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unique_names.insert(name);
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}
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}
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void StorageInMemoryMetadata::check(const Block & block, bool need_all) const
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{
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const NamesAndTypesList & available_columns = getColumns().getAllPhysical();
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const auto columns_map = getColumnsMap(available_columns);
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NameSet names_in_block;
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block.checkNumberOfRows();
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for (const auto & column : block)
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{
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if (names_in_block.count(column.name))
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throw Exception("Duplicate column " + column.name + " in block", ErrorCodes::DUPLICATE_COLUMN);
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names_in_block.insert(column.name);
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auto it = columns_map.find(column.name);
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if (columns_map.end() == it)
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throw Exception(
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"There is no column with name " + column.name + ". There are columns: " + listOfColumns(available_columns),
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ErrorCodes::NO_SUCH_COLUMN_IN_TABLE);
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if (!column.type->equals(*it->second))
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throw Exception(
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"Type mismatch for column " + column.name + ". Column has type " + it->second->getName() + ", got type "
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+ column.type->getName(),
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ErrorCodes::TYPE_MISMATCH);
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}
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if (need_all && names_in_block.size() < columns_map.size())
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{
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for (const auto & available_column : available_columns)
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{
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if (!names_in_block.count(available_column.name))
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throw Exception("Expected column " + available_column.name, ErrorCodes::NOT_FOUND_COLUMN_IN_BLOCK);
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}
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}
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}
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}
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