mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-22 07:31:57 +00:00
344 lines
13 KiB
C++
344 lines
13 KiB
C++
#include <functional>
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#include <iostream>
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#include <string_view>
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#include <boost/program_options.hpp>
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#include <IO/copyData.h>
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#include <IO/ReadBufferFromFileDescriptor.h>
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#include <IO/ReadHelpers.h>
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#include <IO/WriteBufferFromFileDescriptor.h>
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#include <IO/WriteBufferFromOStream.h>
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#include <Interpreters/registerInterpreters.h>
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#include <Parsers/ASTInsertQuery.h>
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#include <Parsers/ParserQuery.h>
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#include <Parsers/formatAST.h>
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#include <Parsers/obfuscateQueries.h>
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#include <Parsers/parseQuery.h>
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#include <Common/ErrorCodes.h>
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#include <Common/StringUtils.h>
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#include <Common/TerminalSize.h>
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#include <Core/BaseSettingsProgramOptions.h>
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#include <Interpreters/Context.h>
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#include <Functions/FunctionFactory.h>
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#include <Databases/registerDatabases.h>
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#include <Functions/registerFunctions.h>
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#include <AggregateFunctions/AggregateFunctionFactory.h>
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#include <AggregateFunctions/registerAggregateFunctions.h>
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#include <TableFunctions/TableFunctionFactory.h>
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#include <TableFunctions/registerTableFunctions.h>
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#include <Storages/StorageFactory.h>
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#include <Storages/registerStorages.h>
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#include <Storages/MergeTree/MergeTreeSettings.h>
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#include <DataTypes/DataTypeFactory.h>
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#include <Formats/FormatFactory.h>
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#include <Formats/registerFormats.h>
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#include <Processors/Transforms/getSourceFromASTInsertQuery.h>
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namespace DB::ErrorCodes
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{
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extern const int NOT_IMPLEMENTED;
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}
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namespace
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{
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void skipSpacesAndComments(const char*& pos, const char* end, bool print_comments)
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{
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do
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{
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/// skip spaces to avoid throw exception after last query
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while (pos != end && std::isspace(*pos))
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++pos;
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const char * comment_begin = pos;
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/// for skip comment after the last query and to not throw exception
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if (end - pos > 2 && *pos == '-' && *(pos + 1) == '-')
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{
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pos += 2;
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/// skip until the end of the line
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while (pos != end && *pos != '\n')
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++pos;
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if (print_comments)
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std::cout << std::string_view(comment_begin, pos - comment_begin) << "\n";
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}
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/// need to parse next sql
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else
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break;
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} while (pos != end);
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}
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}
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#pragma clang diagnostic ignored "-Wunused-function"
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#pragma clang diagnostic ignored "-Wmissing-declarations"
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extern const char * auto_time_zones[];
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int mainEntryClickHouseFormat(int argc, char ** argv)
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{
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using namespace DB;
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try
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{
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boost::program_options::options_description desc = createOptionsDescription("Allowed options", getTerminalWidth());
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desc.add_options()
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("query", po::value<std::string>(), "query to format")
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("help,h", "produce help message")
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("comments", "keep comments in the output")
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("hilite", "add syntax highlight with ANSI terminal escape sequences")
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("oneline", "format in single line")
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("max_line_length", po::value<size_t>()->default_value(0), "format in single line queries with length less than specified")
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("quiet,q", "just check syntax, no output on success")
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("multiquery,n", "allow multiple queries in the same file")
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("obfuscate", "obfuscate instead of formatting")
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("backslash", "add a backslash at the end of each line of the formatted query")
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("allow_settings_after_format_in_insert", "Allow SETTINGS after FORMAT, but note, that this is not always safe")
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("seed", po::value<std::string>(), "seed (arbitrary string) that determines the result of obfuscation")
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;
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Settings cmd_settings;
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for (const auto & field : cmd_settings.all())
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{
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std::string_view name = field.getName();
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if (name == "max_parser_depth" || name == "max_query_size")
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addProgramOption(cmd_settings, desc, name, field);
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}
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boost::program_options::variables_map options;
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boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), options);
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po::notify(options);
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if (options.count("help"))
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{
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std::cout << "Usage: " << argv[0] << " [options] < query" << std::endl;
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std::cout << desc << std::endl;
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return 1;
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}
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bool hilite = options.count("hilite");
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bool oneline = options.count("oneline");
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bool quiet = options.count("quiet");
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bool multiple = options.count("multiquery");
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bool print_comments = options.count("comments");
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size_t max_line_length = options["max_line_length"].as<size_t>();
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bool obfuscate = options.count("obfuscate");
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bool backslash = options.count("backslash");
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bool allow_settings_after_format_in_insert = options.count("allow_settings_after_format_in_insert");
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if (quiet && (hilite || oneline || obfuscate))
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{
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std::cerr << "Options 'hilite' or 'oneline' or 'obfuscate' have no sense in 'quiet' mode." << std::endl;
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return 2;
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}
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if (obfuscate && (hilite || oneline || quiet))
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{
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std::cerr << "Options 'hilite' or 'oneline' or 'quiet' have no sense in 'obfuscate' mode." << std::endl;
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return 2;
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}
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if (oneline && max_line_length)
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{
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std::cerr << "Options 'oneline' and 'max_line_length' are mutually exclusive." << std::endl;
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return 2;
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}
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if (max_line_length > 255)
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{
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std::cerr << "Option 'max_line_length' must be less than 256." << std::endl;
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return 2;
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}
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String query;
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if (options.count("query"))
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{
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query = options["query"].as<std::string>();
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}
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else
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{
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ReadBufferFromFileDescriptor in(STDIN_FILENO);
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readStringUntilEOF(query, in);
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}
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if (obfuscate)
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{
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WordMap obfuscated_words_map;
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WordSet used_nouns;
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SipHash hash_func;
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if (options.count("seed"))
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{
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hash_func.update(options["seed"].as<std::string>());
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}
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SharedContextHolder shared_context = Context::createShared();
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auto context = Context::createGlobal(shared_context.get());
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auto context_const = WithContext(context).getContext();
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context->makeGlobalContext();
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registerInterpreters();
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registerFunctions();
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registerAggregateFunctions();
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registerTableFunctions();
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registerDatabases();
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registerStorages();
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registerFormats();
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std::unordered_set<std::string> additional_names;
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auto all_known_storage_names = StorageFactory::instance().getAllRegisteredNames();
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auto all_known_data_type_names = DataTypeFactory::instance().getAllRegisteredNames();
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auto all_known_settings = Settings().getAllRegisteredNames();
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auto all_known_merge_tree_settings = MergeTreeSettings().getAllRegisteredNames();
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additional_names.insert(all_known_storage_names.begin(), all_known_storage_names.end());
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additional_names.insert(all_known_data_type_names.begin(), all_known_data_type_names.end());
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additional_names.insert(all_known_settings.begin(), all_known_settings.end());
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additional_names.insert(all_known_merge_tree_settings.begin(), all_known_merge_tree_settings.end());
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for (auto * it = auto_time_zones; *it; ++it)
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{
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String time_zone_name = *it;
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/// Example: Europe/Amsterdam
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Strings split;
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boost::split(split, time_zone_name, [](char c){ return c == '/'; });
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for (const auto & word : split)
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if (!word.empty())
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additional_names.insert(word);
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}
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KnownIdentifierFunc is_known_identifier = [&](std::string_view name)
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{
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std::string what(name);
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return FunctionFactory::instance().has(what)
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|| AggregateFunctionFactory::instance().isAggregateFunctionName(what)
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|| TableFunctionFactory::instance().isTableFunctionName(what)
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|| FormatFactory::instance().isOutputFormat(what)
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|| FormatFactory::instance().isInputFormat(what)
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|| additional_names.contains(what);
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};
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WriteBufferFromFileDescriptor out(STDOUT_FILENO);
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obfuscateQueries(query, out, obfuscated_words_map, used_nouns, hash_func, is_known_identifier);
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out.finalize();
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}
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else
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{
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const char * pos = query.data();
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const char * end = pos + query.size();
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skipSpacesAndComments(pos, end, print_comments);
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ParserQuery parser(end, allow_settings_after_format_in_insert);
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while (pos != end)
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{
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size_t approx_query_length = multiple ? find_first_symbols<';'>(pos, end) - pos : end - pos;
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ASTPtr res = parseQueryAndMovePosition(
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parser, pos, end, "query", multiple, cmd_settings.max_query_size, cmd_settings.max_parser_depth, cmd_settings.max_parser_backtracks);
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std::unique_ptr<ReadBuffer> insert_query_payload;
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/// If the query is INSERT ... VALUES, then we will try to parse the data.
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if (auto * insert_query = res->as<ASTInsertQuery>(); insert_query && insert_query->data)
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{
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if ("Values" != insert_query->format)
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throw Exception(DB::ErrorCodes::NOT_IMPLEMENTED, "Can't format INSERT query with data format '{}'", insert_query->format);
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/// Reset format to default to have `INSERT INTO table VALUES` instead of `INSERT INTO table VALUES FORMAT Values`
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insert_query->format = {};
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/// We assume that data ends with a newline character (same as client does)
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const char * this_query_end = find_first_symbols<'\n'>(insert_query->data, end);
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insert_query->end = this_query_end;
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pos = this_query_end;
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insert_query_payload = getReadBufferFromASTInsertQuery(res);
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}
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if (!quiet)
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{
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if (!backslash)
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{
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WriteBufferFromOwnString str_buf;
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formatAST(*res, str_buf, hilite, oneline || approx_query_length < max_line_length);
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if (insert_query_payload)
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{
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str_buf.write(' ');
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copyData(*insert_query_payload, str_buf);
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}
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String res_string = str_buf.str();
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const char * s_pos = res_string.data();
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const char * s_end = s_pos + res_string.size();
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/// remove trailing spaces
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while (s_end > s_pos && isWhitespaceASCIIOneLine(*(s_end - 1)))
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--s_end;
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WriteBufferFromOStream res_cout(std::cout, 4096);
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/// For multiline queries we print ';' at new line,
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/// but for single line queries we print ';' at the same line
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bool has_multiple_lines = false;
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while (s_pos != s_end)
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{
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if (*s_pos == '\n')
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has_multiple_lines = true;
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res_cout.write(*s_pos++);
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}
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res_cout.finalize();
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if (multiple && !insert_query_payload)
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{
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if (oneline || !has_multiple_lines)
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std::cout << ";\n";
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else
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std::cout << "\n;\n";
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}
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else if (multiple && insert_query_payload)
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/// Do not need to add ; because it's already in the insert_query_payload
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std::cout << "\n";
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std::cout << std::endl;
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}
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/// add additional '\' at the end of each line;
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else
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{
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WriteBufferFromOwnString str_buf;
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formatAST(*res, str_buf, hilite, oneline);
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auto res_string = str_buf.str();
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WriteBufferFromOStream res_cout(std::cout, 4096);
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const char * s_pos= res_string.data();
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const char * s_end = s_pos + res_string.size();
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while (s_pos != s_end)
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{
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if (*s_pos == '\n')
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res_cout.write(" \\", 2);
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res_cout.write(*s_pos++);
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}
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res_cout.finalize();
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if (multiple)
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std::cout << " \\\n;\n";
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std::cout << std::endl;
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}
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}
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skipSpacesAndComments(pos, end, print_comments);
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if (!multiple)
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break;
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}
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}
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}
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catch (...)
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{
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std::cerr << getCurrentExceptionMessage(true) << '\n';
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return getCurrentExceptionCode();
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}
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return 0;
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}
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