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Merge pull request #62922 from ClickHouse/more-cases-for-group-by-use-nulls
group_by_use_nulls strikes back
This commit is contained in:
Nikolai Kochetov
GitHub
commit
ebd0865fb0
@ -201,8 +201,11 @@ public:
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void convertToNullable() override
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{
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chassert(kind == FunctionKind::ORDINARY);
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wrap_with_nullable = true;
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/// Ignore other function kinds.
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/// We might try to convert aggregate/window function for invalid query
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/// before the validation happened.
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if (kind == FunctionKind::ORDINARY)
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wrap_with_nullable = true;
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}
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void dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, size_t indent) const override;
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@ -475,7 +475,7 @@ struct TableExpressionData
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class ExpressionsStack
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{
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public:
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void pushNode(const QueryTreeNodePtr & node)
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void push(const QueryTreeNodePtr & node)
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{
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if (node->hasAlias())
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{
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@ -492,7 +492,7 @@ public:
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expressions.emplace_back(node);
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}
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void popNode()
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void pop()
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{
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const auto & top_expression = expressions.back();
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const auto & top_expression_alias = top_expression->getAlias();
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@ -730,6 +730,8 @@ struct IdentifierResolveScope
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join_use_nulls = context->getSettingsRef().join_use_nulls;
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else if (parent_scope)
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join_use_nulls = parent_scope->join_use_nulls;
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alias_name_to_expression_node = &alias_name_to_expression_node_before_group_by;
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}
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QueryTreeNodePtr scope_node;
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@ -745,7 +747,10 @@ struct IdentifierResolveScope
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std::unordered_map<std::string, QueryTreeNodePtr> expression_argument_name_to_node;
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/// Alias name to query expression node
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std::unordered_map<std::string, QueryTreeNodePtr> alias_name_to_expression_node;
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std::unordered_map<std::string, QueryTreeNodePtr> alias_name_to_expression_node_before_group_by;
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std::unordered_map<std::string, QueryTreeNodePtr> alias_name_to_expression_node_after_group_by;
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std::unordered_map<std::string, QueryTreeNodePtr> * alias_name_to_expression_node = nullptr;
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/// Alias name to lambda node
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std::unordered_map<std::string, QueryTreeNodePtr> alias_name_to_lambda_node;
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@ -878,6 +883,22 @@ struct IdentifierResolveScope
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return it->second;
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}
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void pushExpressionNode(const QueryTreeNodePtr & node)
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{
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bool had_aggregate_function = expressions_in_resolve_process_stack.hasAggregateFunction();
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expressions_in_resolve_process_stack.push(node);
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if (group_by_use_nulls && had_aggregate_function != expressions_in_resolve_process_stack.hasAggregateFunction())
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alias_name_to_expression_node = &alias_name_to_expression_node_before_group_by;
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}
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void popExpressionNode()
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{
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bool had_aggregate_function = expressions_in_resolve_process_stack.hasAggregateFunction();
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expressions_in_resolve_process_stack.pop();
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if (group_by_use_nulls && had_aggregate_function != expressions_in_resolve_process_stack.hasAggregateFunction())
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alias_name_to_expression_node = &alias_name_to_expression_node_after_group_by;
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}
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/// Dump identifier resolve scope
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[[maybe_unused]] void dump(WriteBuffer & buffer) const
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{
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@ -894,8 +915,8 @@ struct IdentifierResolveScope
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for (const auto & [alias_name, node] : expression_argument_name_to_node)
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buffer << "Alias name " << alias_name << " node " << node->formatASTForErrorMessage() << '\n';
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buffer << "Alias name to expression node table size " << alias_name_to_expression_node.size() << '\n';
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for (const auto & [alias_name, node] : alias_name_to_expression_node)
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buffer << "Alias name to expression node table size " << alias_name_to_expression_node->size() << '\n';
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for (const auto & [alias_name, node] : *alias_name_to_expression_node)
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buffer << "Alias name " << alias_name << " expression node " << node->dumpTree() << '\n';
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buffer << "Alias name to function node table size " << alias_name_to_lambda_node.size() << '\n';
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@ -1023,7 +1044,7 @@ private:
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if (is_lambda_node)
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{
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if (scope.alias_name_to_expression_node.contains(alias))
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if (scope.alias_name_to_expression_node->contains(alias))
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scope.nodes_with_duplicated_aliases.insert(node);
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auto [_, inserted] = scope.alias_name_to_lambda_node.insert(std::make_pair(alias, node));
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@ -1036,7 +1057,7 @@ private:
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if (scope.alias_name_to_lambda_node.contains(alias))
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scope.nodes_with_duplicated_aliases.insert(node);
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auto [_, inserted] = scope.alias_name_to_expression_node.insert(std::make_pair(alias, node));
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auto [_, inserted] = scope.alias_name_to_expression_node->insert(std::make_pair(alias, node));
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if (!inserted)
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scope.nodes_with_duplicated_aliases.insert(node);
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@ -1838,7 +1859,7 @@ void QueryAnalyzer::collectScopeValidIdentifiersForTypoCorrection(
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if (allow_expression_identifiers)
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{
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for (const auto & [name, expression] : scope.alias_name_to_expression_node)
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for (const auto & [name, expression] : *scope.alias_name_to_expression_node)
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{
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assert(expression);
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auto expression_identifier = Identifier(name);
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@ -1868,7 +1889,7 @@ void QueryAnalyzer::collectScopeValidIdentifiersForTypoCorrection(
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{
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if (allow_function_identifiers)
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{
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for (const auto & [name, _] : scope.alias_name_to_expression_node)
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for (const auto & [name, _] : *scope.alias_name_to_expression_node)
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valid_identifiers_result.insert(Identifier(name));
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}
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@ -2768,7 +2789,7 @@ bool QueryAnalyzer::tryBindIdentifierToAliases(const IdentifierLookup & identifi
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auto get_alias_name_to_node_map = [&]() -> const std::unordered_map<std::string, QueryTreeNodePtr> &
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{
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if (identifier_lookup.isExpressionLookup())
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return scope.alias_name_to_expression_node;
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return *scope.alias_name_to_expression_node;
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else if (identifier_lookup.isFunctionLookup())
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return scope.alias_name_to_lambda_node;
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@ -2830,7 +2851,7 @@ QueryTreeNodePtr QueryAnalyzer::tryResolveIdentifierFromAliases(const Identifier
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auto get_alias_name_to_node_map = [&]() -> std::unordered_map<std::string, QueryTreeNodePtr> &
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{
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if (identifier_lookup.isExpressionLookup())
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return scope.alias_name_to_expression_node;
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return *scope.alias_name_to_expression_node;
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else if (identifier_lookup.isFunctionLookup())
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return scope.alias_name_to_lambda_node;
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@ -2868,7 +2889,7 @@ QueryTreeNodePtr QueryAnalyzer::tryResolveIdentifierFromAliases(const Identifier
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/// Resolve expression if necessary
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if (node_type == QueryTreeNodeType::IDENTIFIER)
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{
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scope.expressions_in_resolve_process_stack.pushNode(it->second);
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scope.pushExpressionNode(it->second);
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auto & alias_identifier_node = it->second->as<IdentifierNode &>();
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auto identifier = alias_identifier_node.getIdentifier();
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@ -2899,9 +2920,9 @@ QueryTreeNodePtr QueryAnalyzer::tryResolveIdentifierFromAliases(const Identifier
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if (identifier_lookup.isExpressionLookup())
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scope.alias_name_to_lambda_node.erase(identifier_bind_part);
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else if (identifier_lookup.isFunctionLookup())
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scope.alias_name_to_expression_node.erase(identifier_bind_part);
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scope.alias_name_to_expression_node->erase(identifier_bind_part);
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scope.expressions_in_resolve_process_stack.popNode();
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scope.popExpressionNode();
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}
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else if (node_type == QueryTreeNodeType::FUNCTION)
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{
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@ -4098,8 +4119,8 @@ IdentifierResolveResult QueryAnalyzer::tryResolveIdentifier(const IdentifierLook
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* SELECT id FROM ( SELECT ... ) AS subquery ARRAY JOIN [0] AS id INNER JOIN second_table USING (id)
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* In the example, identifier `id` should be resolved into one from USING (id) column.
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*/
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auto alias_it = scope.alias_name_to_expression_node.find(identifier_lookup.identifier.getFullName());
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if (alias_it != scope.alias_name_to_expression_node.end() && alias_it->second->getNodeType() == QueryTreeNodeType::COLUMN)
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auto alias_it = scope.alias_name_to_expression_node->find(identifier_lookup.identifier.getFullName());
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if (alias_it != scope.alias_name_to_expression_node->end() && alias_it->second->getNodeType() == QueryTreeNodeType::COLUMN)
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{
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const auto & column_node = alias_it->second->as<ColumnNode &>();
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if (column_node.getColumnSource()->getNodeType() == QueryTreeNodeType::ARRAY_JOIN)
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@ -5203,10 +5224,14 @@ ProjectionNames QueryAnalyzer::resolveLambda(const QueryTreeNodePtr & lambda_nod
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for (size_t i = 0; i < lambda_arguments_nodes_size; ++i)
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{
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auto & lambda_argument_node = lambda_arguments_nodes[i];
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auto & lambda_argument_node_typed = lambda_argument_node->as<IdentifierNode &>();
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const auto & lambda_argument_name = lambda_argument_node_typed.getIdentifier().getFullName();
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const auto * lambda_argument_identifier = lambda_argument_node->as<IdentifierNode>();
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const auto * lambda_argument_column = lambda_argument_node->as<ColumnNode>();
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if (!lambda_argument_identifier && !lambda_argument_column)
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throw Exception(ErrorCodes::LOGICAL_ERROR, "Expected IDENTIFIER or COLUMN as lambda argument, got {}", lambda_node->dumpTree());
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const auto & lambda_argument_name = lambda_argument_identifier ? lambda_argument_identifier->getIdentifier().getFullName()
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: lambda_argument_column->getColumnName();
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bool has_expression_node = scope.alias_name_to_expression_node.contains(lambda_argument_name);
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bool has_expression_node = scope.alias_name_to_expression_node->contains(lambda_argument_name);
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bool has_alias_node = scope.alias_name_to_lambda_node.contains(lambda_argument_name);
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if (has_expression_node || has_alias_node)
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@ -5214,7 +5239,7 @@ ProjectionNames QueryAnalyzer::resolveLambda(const QueryTreeNodePtr & lambda_nod
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throw Exception(ErrorCodes::BAD_ARGUMENTS,
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"Alias name '{}' inside lambda {} cannot have same name as lambda argument. In scope {}",
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lambda_argument_name,
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lambda_argument_node_typed.formatASTForErrorMessage(),
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lambda_argument_node->formatASTForErrorMessage(),
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scope.scope_node->formatASTForErrorMessage());
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}
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@ -6233,8 +6258,8 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(QueryTreeNodePtr & node, Id
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*
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* To resolve b we need to resolve a.
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*/
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auto it = scope.alias_name_to_expression_node.find(node_alias);
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if (it != scope.alias_name_to_expression_node.end())
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auto it = scope.alias_name_to_expression_node->find(node_alias);
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if (it != scope.alias_name_to_expression_node->end())
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node = it->second;
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if (allow_lambda_expression)
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@ -6245,7 +6270,7 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(QueryTreeNodePtr & node, Id
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}
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}
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scope.expressions_in_resolve_process_stack.pushNode(node);
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scope.pushExpressionNode(node);
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auto node_type = node->getNodeType();
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@ -6274,7 +6299,7 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(QueryTreeNodePtr & node, Id
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resolved_identifier_node = tryResolveIdentifier({unresolved_identifier, IdentifierLookupContext::FUNCTION}, scope).resolved_identifier;
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if (resolved_identifier_node && !node_alias.empty())
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scope.alias_name_to_expression_node.erase(node_alias);
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scope.alias_name_to_expression_node->erase(node_alias);
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}
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if (!resolved_identifier_node && allow_table_expression)
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@ -6490,13 +6515,23 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(QueryTreeNodePtr & node, Id
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validateTreeSize(node, scope.context->getSettingsRef().max_expanded_ast_elements, node_to_tree_size);
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if (!scope.expressions_in_resolve_process_stack.hasAggregateFunction())
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/// Lambda can be inside the aggregate function, so we should check parent scopes.
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/// Most likely only the root scope can have an arrgegate function, but let's check all just in case.
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bool in_aggregate_function_scope = false;
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for (const auto * scope_ptr = &scope; scope_ptr; scope_ptr = scope_ptr->parent_scope)
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in_aggregate_function_scope = in_aggregate_function_scope || scope_ptr->expressions_in_resolve_process_stack.hasAggregateFunction();
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if (!in_aggregate_function_scope)
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{
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auto it = scope.nullable_group_by_keys.find(node);
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if (it != scope.nullable_group_by_keys.end())
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for (const auto * scope_ptr = &scope; scope_ptr; scope_ptr = scope_ptr->parent_scope)
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{
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node = it->node->clone();
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node->convertToNullable();
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auto it = scope_ptr->nullable_group_by_keys.find(node);
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if (it != scope_ptr->nullable_group_by_keys.end())
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{
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node = it->node->clone();
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node->convertToNullable();
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break;
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}
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}
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}
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@ -6505,8 +6540,8 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(QueryTreeNodePtr & node, Id
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*/
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if (!node_alias.empty() && use_alias_table && !scope.group_by_use_nulls)
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{
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auto it = scope.alias_name_to_expression_node.find(node_alias);
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if (it != scope.alias_name_to_expression_node.end())
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auto it = scope.alias_name_to_expression_node->find(node_alias);
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if (it != scope.alias_name_to_expression_node->end())
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it->second = node;
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if (allow_lambda_expression)
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@ -6519,7 +6554,7 @@ ProjectionNames QueryAnalyzer::resolveExpressionNode(QueryTreeNodePtr & node, Id
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resolved_expressions.emplace(node, result_projection_names);
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scope.expressions_in_resolve_process_stack.popNode();
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scope.popExpressionNode();
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bool expression_was_root = scope.expressions_in_resolve_process_stack.empty();
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if (expression_was_root)
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scope.non_cached_identifier_lookups_during_expression_resolve.clear();
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@ -6863,11 +6898,11 @@ void QueryAnalyzer::initializeQueryJoinTreeNode(QueryTreeNodePtr & join_tree_nod
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*/
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resolve_settings.allow_to_resolve_subquery_during_identifier_resolution = false;
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scope.expressions_in_resolve_process_stack.pushNode(current_join_tree_node);
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scope.pushExpressionNode(current_join_tree_node);
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auto table_identifier_resolve_result = tryResolveIdentifier(table_identifier_lookup, scope, resolve_settings);
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scope.expressions_in_resolve_process_stack.popNode();
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scope.popExpressionNode();
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bool expression_was_root = scope.expressions_in_resolve_process_stack.empty();
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if (expression_was_root)
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scope.non_cached_identifier_lookups_during_expression_resolve.clear();
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@ -7453,7 +7488,7 @@ void QueryAnalyzer::resolveArrayJoin(QueryTreeNodePtr & array_join_node, Identif
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for (auto & array_join_expression : array_join_nodes)
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{
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auto array_join_expression_alias = array_join_expression->getAlias();
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if (!array_join_expression_alias.empty() && scope.alias_name_to_expression_node.contains(array_join_expression_alias))
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if (!array_join_expression_alias.empty() && scope.alias_name_to_expression_node->contains(array_join_expression_alias))
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throw Exception(ErrorCodes::MULTIPLE_EXPRESSIONS_FOR_ALIAS,
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"ARRAY JOIN expression {} with duplicate alias {}. In scope {}",
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array_join_expression->formatASTForErrorMessage(),
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@ -7547,8 +7582,8 @@ void QueryAnalyzer::resolveArrayJoin(QueryTreeNodePtr & array_join_node, Identif
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array_join_nodes = std::move(array_join_column_expressions);
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for (auto & array_join_column_expression : array_join_nodes)
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{
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auto it = scope.alias_name_to_expression_node.find(array_join_column_expression->getAlias());
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if (it != scope.alias_name_to_expression_node.end())
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auto it = scope.alias_name_to_expression_node->find(array_join_column_expression->getAlias());
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if (it != scope.alias_name_to_expression_node->end())
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{
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auto & array_join_column_expression_typed = array_join_column_expression->as<ColumnNode &>();
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auto array_join_column = std::make_shared<ColumnNode>(array_join_column_expression_typed.getColumn(),
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@ -8077,8 +8112,10 @@ void QueryAnalyzer::resolveQuery(const QueryTreeNodePtr & query_node, Identifier
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/// Clone is needed cause aliases share subtrees.
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/// If not clone, the same (shared) subtree could be resolved again with different (Nullable) type
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/// See 03023_group_by_use_nulls_analyzer_crashes
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for (auto & [_, node] : scope.alias_name_to_expression_node)
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node = node->clone();
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for (auto & [key, node] : scope.alias_name_to_expression_node_before_group_by)
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scope.alias_name_to_expression_node_after_group_by[key] = node->clone();
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scope.alias_name_to_expression_node = &scope.alias_name_to_expression_node_after_group_by;
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}
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if (query_node_typed.hasHaving())
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@ -8158,8 +8195,8 @@ void QueryAnalyzer::resolveQuery(const QueryTreeNodePtr & query_node, Identifier
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||||
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bool has_node_in_alias_table = false;
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auto it = scope.alias_name_to_expression_node.find(node_alias);
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if (it != scope.alias_name_to_expression_node.end())
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auto it = scope.alias_name_to_expression_node->find(node_alias);
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if (it != scope.alias_name_to_expression_node->end())
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||||
{
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has_node_in_alias_table = true;
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@ -8218,7 +8255,7 @@ void QueryAnalyzer::resolveQuery(const QueryTreeNodePtr & query_node, Identifier
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/// Remove aliases from expression and lambda nodes
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for (auto & [_, node] : scope.alias_name_to_expression_node)
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for (auto & [_, node] : *scope.alias_name_to_expression_node)
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node->removeAlias();
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for (auto & [_, node] : scope.alias_name_to_lambda_node)
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@ -66,3 +66,61 @@ a a
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a a
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a a
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0 0
|
||||
0 \N
|
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1 2
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1 \N
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2 4
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2 \N
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\N 0
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\N 2
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\N 4
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\N \N
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0 0 nan
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2 4 nan
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1 2 nan
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2 \N nan
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||||
0 \N nan
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||||
1 \N nan
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||||
\N 2 nan
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||||
\N 0 nan
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||||
\N 4 nan
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\N \N nan
|
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[]
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['.']
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||||
['.','.']
|
||||
['.','.','.']
|
||||
['.','.','.','.']
|
||||
['.','.','.','.','.']
|
||||
['.','.','.','.','.','.']
|
||||
['.','.','.','.','.','.','.']
|
||||
['.','.','.','.','.','.','.','.']
|
||||
['.','.','.','.','.','.','.','.','.']
|
||||
[]
|
||||
[]
|
||||
[]
|
||||
[]
|
||||
[]
|
||||
[]
|
||||
[]
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
1
|
||||
10
|
||||
|
||||
@ -21,3 +21,39 @@ SELECT tuple(number + 1) AS x FROM numbers(10) GROUP BY number + 1, toString(x)
|
||||
SELECT tuple(tuple(number)) AS x FROM numbers(10) WHERE toString(toUUID(tuple(number), NULL), x) GROUP BY number, (toString(x), number) WITH CUBE SETTINGS group_by_use_nulls = 1 FORMAT Null;
|
||||
|
||||
SELECT materialize('a'), 'a' AS key GROUP BY key WITH CUBE WITH TOTALS SETTINGS group_by_use_nulls = 1;
|
||||
|
||||
EXPLAIN QUERY TREE
|
||||
SELECT a, b
|
||||
FROM numbers(3)
|
||||
GROUP BY number as a, (number + number) as b WITH CUBE
|
||||
ORDER BY a, b format Null;
|
||||
|
||||
SELECT a, b
|
||||
FROM numbers(3)
|
||||
GROUP BY number as a, (number + number) as b WITH CUBE
|
||||
ORDER BY a, b;
|
||||
|
||||
SELECT
|
||||
a,
|
||||
b,
|
||||
cramersVBiasCorrected(a, b)
|
||||
FROM numbers(3)
|
||||
GROUP BY
|
||||
number AS a,
|
||||
number + number AS b
|
||||
WITH CUBE
|
||||
SETTINGS group_by_use_nulls = 1;
|
||||
|
||||
SELECT arrayMap(x -> '.', range(number % 10)) AS k FROM remote('127.0.0.{2,3}', numbers(10)) GROUP BY GROUPING SETS ((k)) ORDER BY k settings group_by_use_nulls=1;
|
||||
|
||||
SELECT count('Lambda as function parameter') AS c FROM (SELECT ignore(ignore('Lambda as function parameter', 28, 28, 28, 28, 28, 28), 28), materialize('Lambda as function parameter'), 28, 28, 'world', 5 FROM system.numbers WHERE ignore(materialize('Lambda as function parameter'), materialize(toLowCardinality(28)), 28, 28, 28, 28, toUInt128(28)) LIMIT 2) GROUP BY GROUPING SETS ((toLowCardinality(0)), (toLowCardinality(toNullable(28))), (1)) HAVING nullIf(c, 10) < 50 ORDER BY c ASC NULLS FIRST settings group_by_use_nulls=1; -- { serverError ILLEGAL_AGGREGATION }
|
||||
|
||||
SELECT arraySplit(x -> 0, []) WHERE materialize(1) GROUP BY (0, ignore('a')) WITH ROLLUP SETTINGS group_by_use_nulls = 1;
|
||||
|
||||
SELECT arraySplit(x -> toUInt8(number), []) from numbers(1) GROUP BY toUInt8(number) WITH ROLLUP SETTINGS group_by_use_nulls = 1;
|
||||
|
||||
SELECT arraySplit(number -> toUInt8(number), []) from numbers(1) GROUP BY toUInt8(number) WITH ROLLUP SETTINGS group_by_use_nulls = 1;
|
||||
|
||||
SELECT count(arraySplit(number -> toUInt8(number), [arraySplit(x -> toUInt8(number), [])])) FROM numbers(10) GROUP BY number, [number] WITH ROLLUP settings group_by_use_nulls=1; -- {serverError ILLEGAL_TYPE_OF_ARGUMENT}
|
||||
|
||||
SELECT count(arraySplit(x -> toUInt8(number), [])) FROM numbers(10) GROUP BY number, [number] WITH ROLLUP settings group_by_use_nulls=1;
|
||||
Loading…
Reference in New Issue
Block a user