mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-27 10:02:01 +00:00
allow to include virtual columns into DESCRIBE query
This commit is contained in:
Anton Popov
parent
e8d8c6dea5
commit
9b0e222cd2
@ -604,6 +604,8 @@ class IColumn;
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M(Bool, insert_null_as_default, true, "Insert DEFAULT values instead of NULL in INSERT SELECT (UNION ALL)", 0) \
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M(Bool, describe_extend_object_types, false, "Deduce concrete type of columns of type Object in DESCRIBE query", 0) \
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M(Bool, describe_include_subcolumns, false, "If true, subcolumns of all table columns will be included into result of DESCRIBE query", 0) \
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M(Bool, describe_include_virtual_columns, false, "If true, virtual columns of table will be included into result of DESCRIBE query", 0) \
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M(Bool, describe_compact_output, false, "If true, include only column names and types into result of DESCRIBE query", 0) \
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M(Bool, mutations_execute_nondeterministic_on_initiator, false, "If true nondeterministic function are executed on initiator and replaced to literals in UPDATE and DELETE queries", 0) \
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M(Bool, mutations_execute_subqueries_on_initiator, false, "If true scalar subqueries are executed on initiator and replaced to literals in UPDATE and DELETE queries", 0) \
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M(UInt64, mutations_max_literal_size_to_replace, 16384, "The maximum size of serialized literal in bytes to replace in UPDATE and DELETE queries", 0) \
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@ -21,7 +21,14 @@
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namespace DB
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{
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Block InterpreterDescribeQuery::getSampleBlock(bool include_subcolumns)
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InterpreterDescribeQuery::InterpreterDescribeQuery(const ASTPtr & query_ptr_, ContextPtr context_)
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: WithContext(context_)
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, query_ptr(query_ptr_)
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, settings(getContext()->getSettingsRef())
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{
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}
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Block InterpreterDescribeQuery::getSampleBlock(bool include_subcolumns, bool include_virtuals, bool compact)
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{
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Block block;
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@ -34,20 +41,23 @@ Block InterpreterDescribeQuery::getSampleBlock(bool include_subcolumns)
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col.name = "type";
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block.insert(col);
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col.name = "default_type";
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block.insert(col);
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if (!compact)
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{
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col.name = "default_type";
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block.insert(col);
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col.name = "default_expression";
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block.insert(col);
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col.name = "default_expression";
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block.insert(col);
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col.name = "comment";
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block.insert(col);
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col.name = "comment";
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block.insert(col);
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col.name = "codec_expression";
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block.insert(col);
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col.name = "codec_expression";
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block.insert(col);
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col.name = "ttl_expression";
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block.insert(col);
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col.name = "ttl_expression";
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block.insert(col);
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}
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if (include_subcolumns)
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{
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@ -57,141 +67,49 @@ Block InterpreterDescribeQuery::getSampleBlock(bool include_subcolumns)
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block.insert(col);
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}
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if (include_virtuals)
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{
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col.name = "is_virtual";
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col.type = std::make_shared<DataTypeUInt8>();
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col.column = col.type->createColumn();
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block.insert(col);
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}
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return block;
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}
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BlockIO InterpreterDescribeQuery::execute()
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{
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std::vector<ColumnDescription> columns;
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StorageSnapshotPtr storage_snapshot;
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const auto & ast = query_ptr->as<ASTDescribeQuery &>();
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const auto & table_expression = ast.table_expression->as<ASTTableExpression &>();
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const auto & settings = getContext()->getSettingsRef();
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if (table_expression.subquery)
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{
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NamesAndTypesList names_and_types;
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auto select_query = table_expression.subquery->children.at(0);
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auto current_context = getContext();
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if (settings.allow_experimental_analyzer)
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{
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SelectQueryOptions select_query_options;
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names_and_types = InterpreterSelectQueryAnalyzer(select_query, current_context, select_query_options).getSampleBlock().getNamesAndTypesList();
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}
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else
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{
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names_and_types = InterpreterSelectWithUnionQuery::getSampleBlock(select_query, current_context).getNamesAndTypesList();
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}
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for (auto && [name, type] : names_and_types)
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{
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ColumnDescription description;
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description.name = std::move(name);
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description.type = std::move(type);
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columns.emplace_back(std::move(description));
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}
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}
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fillColumnsFromSubquery(table_expression);
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else if (table_expression.table_function)
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{
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TableFunctionPtr table_function_ptr = TableFunctionFactory::instance().get(table_expression.table_function, getContext());
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auto table_function_column_descriptions = table_function_ptr->getActualTableStructure(getContext(), /*is_insert_query*/ true);
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for (const auto & table_function_column_description : table_function_column_descriptions)
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columns.emplace_back(table_function_column_description);
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}
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fillColumnsFromTableFunction(table_expression);
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else
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{
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auto table_id = getContext()->resolveStorageID(table_expression.database_and_table_name);
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getContext()->checkAccess(AccessType::SHOW_COLUMNS, table_id);
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auto table = DatabaseCatalog::instance().getTable(table_id, getContext());
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auto table_lock = table->lockForShare(getContext()->getInitialQueryId(), settings.lock_acquire_timeout);
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fillColumnsFromTable(table_expression);
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auto metadata_snapshot = table->getInMemoryMetadataPtr();
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storage_snapshot = table->getStorageSnapshot(metadata_snapshot, getContext());
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auto metadata_column_descriptions = metadata_snapshot->getColumns();
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for (const auto & metadata_column_description : metadata_column_descriptions)
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columns.emplace_back(metadata_column_description);
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}
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Block sample_block = getSampleBlock(
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settings.describe_include_subcolumns,
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settings.describe_include_virtual_columns,
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settings.describe_compact_output);
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bool extend_object_types = settings.describe_extend_object_types && storage_snapshot;
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bool include_subcolumns = settings.describe_include_subcolumns;
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Block sample_block = getSampleBlock(include_subcolumns);
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MutableColumns res_columns = sample_block.cloneEmptyColumns();
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for (const auto & column : columns)
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{
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res_columns[0]->insert(column.name);
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addColumn(column, false, res_columns);
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DataTypePtr type;
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if (extend_object_types)
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type = storage_snapshot->getConcreteType(column.name);
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else
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type = column.type;
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for (const auto & column : virtual_columns)
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addColumn(column, true, res_columns);
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if (getContext()->getSettingsRef().print_pretty_type_names)
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res_columns[1]->insert(type->getPrettyName());
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else
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res_columns[1]->insert(type->getName());
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if (column.default_desc.expression)
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{
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res_columns[2]->insert(toString(column.default_desc.kind));
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res_columns[3]->insert(queryToString(column.default_desc.expression));
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}
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else
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{
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res_columns[2]->insertDefault();
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res_columns[3]->insertDefault();
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}
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res_columns[4]->insert(column.comment);
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if (column.codec)
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res_columns[5]->insert(queryToString(column.codec->as<ASTFunction>()->arguments));
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else
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res_columns[5]->insertDefault();
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if (column.ttl)
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res_columns[6]->insert(queryToString(column.ttl));
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else
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res_columns[6]->insertDefault();
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if (include_subcolumns)
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res_columns[7]->insertDefault();
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}
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if (include_subcolumns)
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if (settings.describe_include_subcolumns)
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{
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for (const auto & column : columns)
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{
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auto type = extend_object_types ? storage_snapshot->getConcreteType(column.name) : column.type;
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addSubcolumns(column, false, res_columns);
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IDataType::forEachSubcolumn([&](const auto & path, const auto & name, const auto & data)
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{
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res_columns[0]->insert(Nested::concatenateName(column.name, name));
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res_columns[1]->insert(data.type->getName());
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/// It's not trivial to calculate default expression for subcolumn.
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/// So, leave it empty.
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res_columns[2]->insertDefault();
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res_columns[3]->insertDefault();
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res_columns[4]->insert(column.comment);
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if (column.codec && ISerialization::isSpecialCompressionAllowed(path))
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res_columns[5]->insert(queryToString(column.codec->as<ASTFunction>()->arguments));
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else
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res_columns[5]->insertDefault();
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if (column.ttl)
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res_columns[6]->insert(queryToString(column.ttl));
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else
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res_columns[6]->insertDefault();
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res_columns[7]->insert(1u);
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}, ISerialization::SubstreamData(type->getDefaultSerialization()).withType(type));
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}
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for (const auto & column : virtual_columns)
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addSubcolumns(column, true, res_columns);
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}
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BlockIO res;
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@ -202,4 +120,155 @@ BlockIO InterpreterDescribeQuery::execute()
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return res;
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}
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void InterpreterDescribeQuery::fillColumnsFromSubquery(const ASTTableExpression & table_expression)
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{
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NamesAndTypesList names_and_types;
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auto select_query = table_expression.subquery->children.at(0);
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auto current_context = getContext();
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if (settings.allow_experimental_analyzer)
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{
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SelectQueryOptions select_query_options;
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names_and_types = InterpreterSelectQueryAnalyzer(select_query, current_context, select_query_options).getSampleBlock().getNamesAndTypesList();
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}
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else
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{
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names_and_types = InterpreterSelectWithUnionQuery::getSampleBlock(select_query, current_context).getNamesAndTypesList();
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}
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for (auto && [name, type] : names_and_types)
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columns.emplace_back(std::move(name), std::move(type));
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}
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void InterpreterDescribeQuery::fillColumnsFromTableFunction(const ASTTableExpression & table_expression)
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{
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auto current_context = getContext();
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TableFunctionPtr table_function_ptr = TableFunctionFactory::instance().get(table_expression.table_function, current_context);
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auto column_descriptions = table_function_ptr->getActualTableStructure(getContext(), /*is_insert_query*/ true);
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for (const auto & column : column_descriptions)
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columns.emplace_back(column);
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if (settings.describe_include_virtual_columns)
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{
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auto table = table_function_ptr->execute(table_expression.table_function, getContext(), table_function_ptr->getName());
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if (table)
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{
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for (const auto & column : table->getVirtuals())
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{
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if (!column_descriptions.has(column.name))
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virtual_columns.emplace_back(column.name, column.type);
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}
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}
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}
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}
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void InterpreterDescribeQuery::fillColumnsFromTable(const ASTTableExpression & table_expression)
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{
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auto table_id = getContext()->resolveStorageID(table_expression.database_and_table_name);
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getContext()->checkAccess(AccessType::SHOW_COLUMNS, table_id);
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auto table = DatabaseCatalog::instance().getTable(table_id, getContext());
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auto table_lock = table->lockForShare(getContext()->getInitialQueryId(), settings.lock_acquire_timeout);
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auto metadata_snapshot = table->getInMemoryMetadataPtr();
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const auto & column_descriptions = metadata_snapshot->getColumns();
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for (const auto & column : column_descriptions)
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columns.emplace_back(column);
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if (settings.describe_include_virtual_columns)
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{
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for (const auto & column : table->getVirtuals())
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{
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if (!column_descriptions.has(column.name))
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virtual_columns.emplace_back(column.name, column.type);
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}
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}
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if (settings.describe_extend_object_types)
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storage_snapshot = table->getStorageSnapshot(metadata_snapshot, getContext());
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}
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void InterpreterDescribeQuery::addColumn(const ColumnDescription & column, bool is_virtual, MutableColumns & res_columns)
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{
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size_t i = 0;
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res_columns[i++]->insert(column.name);
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auto type = storage_snapshot ? storage_snapshot->getConcreteType(column.name) : column.type;
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if (settings.print_pretty_type_names)
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res_columns[i++]->insert(type->getPrettyName());
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else
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res_columns[i++]->insert(type->getName());
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if (!settings.describe_compact_output)
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{
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if (column.default_desc.expression)
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{
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res_columns[i++]->insert(toString(column.default_desc.kind));
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res_columns[i++]->insert(queryToString(column.default_desc.expression));
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}
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else
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{
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res_columns[i++]->insertDefault();
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res_columns[i++]->insertDefault();
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}
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res_columns[i++]->insert(column.comment);
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if (column.codec)
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res_columns[i++]->insert(queryToString(column.codec->as<ASTFunction>()->arguments));
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else
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res_columns[i++]->insertDefault();
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if (column.ttl)
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res_columns[i++]->insert(queryToString(column.ttl));
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else
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res_columns[i++]->insertDefault();
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}
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if (settings.describe_include_subcolumns)
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res_columns[i++]->insertDefault();
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if (settings.describe_include_virtual_columns)
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res_columns[i++]->insert(is_virtual);
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}
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void InterpreterDescribeQuery::addSubcolumns(const ColumnDescription & column, bool is_virtual, MutableColumns & res_columns)
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{
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auto type = storage_snapshot ? storage_snapshot->getConcreteType(column.name) : column.type;
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IDataType::forEachSubcolumn([&](const auto & path, const auto & name, const auto & data)
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{
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size_t i = 0;
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res_columns[i++]->insert(Nested::concatenateName(column.name, name));
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if (settings.print_pretty_type_names)
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res_columns[i++]->insert(data.type->getPrettyName());
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else
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res_columns[i++]->insert(data.type->getName());
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if (!settings.describe_compact_output)
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{
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/// It's not trivial to calculate default expression for subcolumn.
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/// So, leave it empty.
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res_columns[i++]->insertDefault();
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res_columns[i++]->insertDefault();
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res_columns[i++]->insert(column.comment);
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if (column.codec && ISerialization::isSpecialCompressionAllowed(path))
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res_columns[i++]->insert(queryToString(column.codec->as<ASTFunction>()->arguments));
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else
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res_columns[i++]->insertDefault();
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if (column.ttl)
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res_columns[i++]->insert(queryToString(column.ttl));
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else
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res_columns[i++]->insertDefault();
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}
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res_columns[i++]->insert(1U);
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if (settings.describe_include_virtual_columns)
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res_columns[i++]->insert(is_virtual);
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}, ISerialization::SubstreamData(type->getDefaultSerialization()).withType(type));
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}
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}
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@ -1,25 +1,41 @@
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#pragma once
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#include <Interpreters/IInterpreter.h>
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#include <Storages/ColumnsDescription.h>
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#include <Storages/StorageSnapshot.h>
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#include <Parsers/IAST_fwd.h>
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namespace DB
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{
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struct ASTTableExpression;
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/** Return names, types and other information about columns in specified table.
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*/
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class InterpreterDescribeQuery : public IInterpreter, WithContext
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{
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public:
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InterpreterDescribeQuery(const ASTPtr & query_ptr_, ContextPtr context_) : WithContext(context_), query_ptr(query_ptr_) {}
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InterpreterDescribeQuery(const ASTPtr & query_ptr_, ContextPtr context_);
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BlockIO execute() override;
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static Block getSampleBlock(bool include_subcolumns);
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static Block getSampleBlock(bool include_subcolumns, bool include_virtuals, bool compact);
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private:
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void fillColumnsFromSubquery(const ASTTableExpression & table_expression);
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void fillColumnsFromTableFunction(const ASTTableExpression & table_expression);
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void fillColumnsFromTable(const ASTTableExpression & table_expression);
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void addColumn(const ColumnDescription & column, bool is_virtual, MutableColumns & res_columns);
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void addSubcolumns(const ColumnDescription & column, bool is_virtual, MutableColumns & res_columns);
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ASTPtr query_ptr;
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const Settings & settings;
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std::vector<ColumnDescription> columns;
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std::vector<ColumnDescription> virtual_columns;
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StorageSnapshotPtr storage_snapshot;
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};
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206
tests/queries/0_stateless/02890_describe_table_options.reference
Normal file
206
tests/queries/0_stateless/02890_describe_table_options.reference
Normal file
@ -0,0 +1,206 @@
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-- { echoOn }
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SET describe_compact_output = 0, describe_include_virtual_columns = 0, describe_include_subcolumns = 0;
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DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
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┌─name─┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┐
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│ id │ UInt64 │ │ │ index column │ │ │
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│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │
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│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │
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└──────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┘
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DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
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┌─name─┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┐
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│ id │ UInt64 │ │ │ index column │ │ │
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│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │
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│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │
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└──────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┘
|
||||
SET describe_compact_output = 0, describe_include_virtual_columns = 0, describe_include_subcolumns = 1;
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
┌─name──────┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┬─is_subcolumn─┐
|
||||
│ id │ UInt64 │ │ │ index column │ │ │ 0 │
|
||||
│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │ 0 │
|
||||
│ arr.size0 │ UInt64 │ │ │ │ │ │ 1 │
|
||||
│ t.a │ String │ │ │ │ ZSTD(1) │ │ 1 │
|
||||
│ t.b │ UInt64 │ │ │ │ ZSTD(1) │ │ 1 │
|
||||
└───────────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┴──────────────┘
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
┌─name──────┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┬─is_subcolumn─┐
|
||||
│ id │ UInt64 │ │ │ index column │ │ │ 0 │
|
||||
│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │ 0 │
|
||||
│ arr.size0 │ UInt64 │ │ │ │ │ │ 1 │
|
||||
│ t.a │ String │ │ │ │ ZSTD(1) │ │ 1 │
|
||||
│ t.b │ UInt64 │ │ │ │ ZSTD(1) │ │ 1 │
|
||||
└───────────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┴──────────────┘
|
||||
SET describe_compact_output = 0, describe_include_virtual_columns = 1, describe_include_subcolumns = 0;
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
┌─name─────────────┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┬─is_virtual─┐
|
||||
│ id │ UInt64 │ │ │ index column │ │ │ 0 │
|
||||
│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │ 0 │
|
||||
│ _part │ LowCardinality(String) │ │ │ │ │ │ 1 │
|
||||
│ _part_index │ UInt64 │ │ │ │ │ │ 1 │
|
||||
│ _part_uuid │ UUID │ │ │ │ │ │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ │ │ │ │ │ 1 │
|
||||
│ _partition_value │ UInt8 │ │ │ │ │ │ 1 │
|
||||
│ _sample_factor │ Float64 │ │ │ │ │ │ 1 │
|
||||
│ _part_offset │ UInt64 │ │ │ │ │ │ 1 │
|
||||
│ _row_exists │ UInt8 │ │ │ │ │ │ 1 │
|
||||
│ _block_number │ UInt64 │ │ │ │ │ │ 1 │
|
||||
└──────────────────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┴────────────┘
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
┌─name───────────┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┬─is_virtual─┐
|
||||
│ id │ UInt64 │ │ │ index column │ │ │ 0 │
|
||||
│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │ 0 │
|
||||
│ _table │ LowCardinality(String) │ │ │ │ │ │ 1 │
|
||||
│ _part │ LowCardinality(String) │ │ │ │ │ │ 1 │
|
||||
│ _part_index │ UInt64 │ │ │ │ │ │ 1 │
|
||||
│ _part_uuid │ UUID │ │ │ │ │ │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ │ │ │ │ │ 1 │
|
||||
│ _sample_factor │ Float64 │ │ │ │ │ │ 1 │
|
||||
│ _part_offset │ UInt64 │ │ │ │ │ │ 1 │
|
||||
│ _row_exists │ UInt8 │ │ │ │ │ │ 1 │
|
||||
│ _block_number │ UInt64 │ │ │ │ │ │ 1 │
|
||||
│ _shard_num │ UInt32 │ │ │ │ │ │ 1 │
|
||||
└────────────────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┴────────────┘
|
||||
SET describe_compact_output = 0, describe_include_virtual_columns = 1, describe_include_subcolumns = 1;
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
┌─name─────────────┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┬─is_subcolumn─┬─is_virtual─┐
|
||||
│ id │ UInt64 │ │ │ index column │ │ │ 0 │ 0 │
|
||||
│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │ 0 │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │ 0 │ 0 │
|
||||
│ _part │ LowCardinality(String) │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _part_index │ UInt64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _part_uuid │ UUID │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _partition_value │ UInt8 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _sample_factor │ Float64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _part_offset │ UInt64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _row_exists │ UInt8 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _block_number │ UInt64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ arr.size0 │ UInt64 │ │ │ │ │ │ 1 │ 0 │
|
||||
│ t.a │ String │ │ │ │ ZSTD(1) │ │ 1 │ 0 │
|
||||
│ t.b │ UInt64 │ │ │ │ ZSTD(1) │ │ 1 │ 0 │
|
||||
└──────────────────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┴──────────────┴────────────┘
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
┌─name───────────┬─type──────────────────────┬─default_type─┬─default_expression─┬─comment──────┬─codec_expression─┬─ttl_expression─┬─is_subcolumn─┬─is_virtual─┐
|
||||
│ id │ UInt64 │ │ │ index column │ │ │ 0 │ 0 │
|
||||
│ arr │ Array(UInt64) │ DEFAULT │ [10, 20] │ │ ZSTD(1) │ │ 0 │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ DEFAULT │ ('foo', 0) │ │ ZSTD(1) │ │ 0 │ 0 │
|
||||
│ _table │ LowCardinality(String) │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _part │ LowCardinality(String) │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _part_index │ UInt64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _part_uuid │ UUID │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _sample_factor │ Float64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _part_offset │ UInt64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _row_exists │ UInt8 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _block_number │ UInt64 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ _shard_num │ UInt32 │ │ │ │ │ │ 0 │ 1 │
|
||||
│ arr.size0 │ UInt64 │ │ │ │ │ │ 1 │ 0 │
|
||||
│ t.a │ String │ │ │ │ ZSTD(1) │ │ 1 │ 0 │
|
||||
│ t.b │ UInt64 │ │ │ │ ZSTD(1) │ │ 1 │ 0 │
|
||||
└────────────────┴───────────────────────────┴──────────────┴────────────────────┴──────────────┴──────────────────┴────────────────┴──────────────┴────────────┘
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 0, describe_include_subcolumns = 0;
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
┌─name─┬─type──────────────────────┐
|
||||
│ id │ UInt64 │
|
||||
│ arr │ Array(UInt64) │
|
||||
│ t │ Tuple(a String, b UInt64) │
|
||||
└──────┴───────────────────────────┘
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
┌─name─┬─type──────────────────────┐
|
||||
│ id │ UInt64 │
|
||||
│ arr │ Array(UInt64) │
|
||||
│ t │ Tuple(a String, b UInt64) │
|
||||
└──────┴───────────────────────────┘
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 0, describe_include_subcolumns = 1;
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
┌─name──────┬─type──────────────────────┬─is_subcolumn─┐
|
||||
│ id │ UInt64 │ 0 │
|
||||
│ arr │ Array(UInt64) │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ 0 │
|
||||
│ arr.size0 │ UInt64 │ 1 │
|
||||
│ t.a │ String │ 1 │
|
||||
│ t.b │ UInt64 │ 1 │
|
||||
└───────────┴───────────────────────────┴──────────────┘
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
┌─name──────┬─type──────────────────────┬─is_subcolumn─┐
|
||||
│ id │ UInt64 │ 0 │
|
||||
│ arr │ Array(UInt64) │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ 0 │
|
||||
│ arr.size0 │ UInt64 │ 1 │
|
||||
│ t.a │ String │ 1 │
|
||||
│ t.b │ UInt64 │ 1 │
|
||||
└───────────┴───────────────────────────┴──────────────┘
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 1, describe_include_subcolumns = 0;
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
┌─name─────────────┬─type──────────────────────┬─is_virtual─┐
|
||||
│ id │ UInt64 │ 0 │
|
||||
│ arr │ Array(UInt64) │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ 0 │
|
||||
│ _part │ LowCardinality(String) │ 1 │
|
||||
│ _part_index │ UInt64 │ 1 │
|
||||
│ _part_uuid │ UUID │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ 1 │
|
||||
│ _partition_value │ UInt8 │ 1 │
|
||||
│ _sample_factor │ Float64 │ 1 │
|
||||
│ _part_offset │ UInt64 │ 1 │
|
||||
│ _row_exists │ UInt8 │ 1 │
|
||||
│ _block_number │ UInt64 │ 1 │
|
||||
└──────────────────┴───────────────────────────┴────────────┘
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
┌─name───────────┬─type──────────────────────┬─is_virtual─┐
|
||||
│ id │ UInt64 │ 0 │
|
||||
│ arr │ Array(UInt64) │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ 0 │
|
||||
│ _table │ LowCardinality(String) │ 1 │
|
||||
│ _part │ LowCardinality(String) │ 1 │
|
||||
│ _part_index │ UInt64 │ 1 │
|
||||
│ _part_uuid │ UUID │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ 1 │
|
||||
│ _sample_factor │ Float64 │ 1 │
|
||||
│ _part_offset │ UInt64 │ 1 │
|
||||
│ _row_exists │ UInt8 │ 1 │
|
||||
│ _block_number │ UInt64 │ 1 │
|
||||
│ _shard_num │ UInt32 │ 1 │
|
||||
└────────────────┴───────────────────────────┴────────────┘
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 1, describe_include_subcolumns = 1;
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
┌─name─────────────┬─type──────────────────────┬─is_subcolumn─┬─is_virtual─┐
|
||||
│ id │ UInt64 │ 0 │ 0 │
|
||||
│ arr │ Array(UInt64) │ 0 │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ 0 │ 0 │
|
||||
│ _part │ LowCardinality(String) │ 0 │ 1 │
|
||||
│ _part_index │ UInt64 │ 0 │ 1 │
|
||||
│ _part_uuid │ UUID │ 0 │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ 0 │ 1 │
|
||||
│ _partition_value │ UInt8 │ 0 │ 1 │
|
||||
│ _sample_factor │ Float64 │ 0 │ 1 │
|
||||
│ _part_offset │ UInt64 │ 0 │ 1 │
|
||||
│ _row_exists │ UInt8 │ 0 │ 1 │
|
||||
│ _block_number │ UInt64 │ 0 │ 1 │
|
||||
│ arr.size0 │ UInt64 │ 1 │ 0 │
|
||||
│ t.a │ String │ 1 │ 0 │
|
||||
│ t.b │ UInt64 │ 1 │ 0 │
|
||||
└──────────────────┴───────────────────────────┴──────────────┴────────────┘
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
┌─name───────────┬─type──────────────────────┬─is_subcolumn─┬─is_virtual─┐
|
||||
│ id │ UInt64 │ 0 │ 0 │
|
||||
│ arr │ Array(UInt64) │ 0 │ 0 │
|
||||
│ t │ Tuple(a String, b UInt64) │ 0 │ 0 │
|
||||
│ _table │ LowCardinality(String) │ 0 │ 1 │
|
||||
│ _part │ LowCardinality(String) │ 0 │ 1 │
|
||||
│ _part_index │ UInt64 │ 0 │ 1 │
|
||||
│ _part_uuid │ UUID │ 0 │ 1 │
|
||||
│ _partition_id │ LowCardinality(String) │ 0 │ 1 │
|
||||
│ _sample_factor │ Float64 │ 0 │ 1 │
|
||||
│ _part_offset │ UInt64 │ 0 │ 1 │
|
||||
│ _row_exists │ UInt8 │ 0 │ 1 │
|
||||
│ _block_number │ UInt64 │ 0 │ 1 │
|
||||
│ _shard_num │ UInt32 │ 0 │ 1 │
|
||||
│ arr.size0 │ UInt64 │ 1 │ 0 │
|
||||
│ t.a │ String │ 1 │ 0 │
|
||||
│ t.b │ UInt64 │ 1 │ 0 │
|
||||
└────────────────┴───────────────────────────┴──────────────┴────────────┘
|
||||
54
tests/queries/0_stateless/02890_describe_table_options.sql
Normal file
54
tests/queries/0_stateless/02890_describe_table_options.sql
Normal file
@ -0,0 +1,54 @@
|
||||
DROP TABLE IF EXISTS t_describe_options;
|
||||
|
||||
CREATE TABLE t_describe_options (
|
||||
id UInt64 COMMENT 'index column',
|
||||
arr Array(UInt64) DEFAULT [10, 20] CODEC(ZSTD),
|
||||
t Tuple(a String, b UInt64) DEFAULT ('foo', 0) CODEC(ZSTD))
|
||||
ENGINE = MergeTree
|
||||
ORDER BY id;
|
||||
|
||||
-- { echoOn }
|
||||
|
||||
SET describe_compact_output = 0, describe_include_virtual_columns = 0, describe_include_subcolumns = 0;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
SET describe_compact_output = 0, describe_include_virtual_columns = 0, describe_include_subcolumns = 1;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
SET describe_compact_output = 0, describe_include_virtual_columns = 1, describe_include_subcolumns = 0;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
SET describe_compact_output = 0, describe_include_virtual_columns = 1, describe_include_subcolumns = 1;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 0, describe_include_subcolumns = 0;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 0, describe_include_subcolumns = 1;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 1, describe_include_subcolumns = 0;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
SET describe_compact_output = 1, describe_include_virtual_columns = 1, describe_include_subcolumns = 1;
|
||||
|
||||
DESCRIBE TABLE t_describe_options FORMAT PrettyCompactNoEscapes;
|
||||
DESCRIBE remote(default, currentDatabase(), t_describe_options) FORMAT PrettyCompactNoEscapes;
|
||||
|
||||
-- { echoOff }
|
||||
|
||||
DROP TABLE t_describe_options;
|
||||
Loading…
Reference in New Issue
Block a user