mirror of
https://github.com/ClickHouse/ClickHouse.git
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839 lines
26 KiB
C++
839 lines
26 KiB
C++
#include <sstream>
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#include <boost/variant/static_visitor.hpp>
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#include <mysqlxx/Manip.h>
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#include <DB/IO/WriteBufferFromOStream.h>
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#include <DB/IO/WriteBufferFromString.h>
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#include <DB/IO/WriteHelpers.h>
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#include <DB/Core/Exception.h>
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#include <DB/Core/ErrorCodes.h>
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#include <DB/Core/NamesAndTypes.h>
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#include <DB/Parsers/formatAST.h>
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namespace DB
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{
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static const char * hilite_keyword = "\033[1;37m";
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static const char * hilite_identifier = "\033[0;36m";
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static const char * hilite_function = "\033[0;33m";
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static const char * hilite_operator = "\033[1;33m";
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static const char * hilite_alias = "\033[0;32m";
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static const char * hilite_none = "\033[0m";
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/// Квотировать идентификатор обратными кавычками, если это требуется.
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String backQuoteIfNeed(const String & x)
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{
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String res(x.size(), '\0');
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{
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WriteBufferFromString wb(res);
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writeProbablyBackQuotedString(x, wb);
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}
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return res;
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}
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void formatAST(const IAST & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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#define DISPATCH(NAME) \
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else if (const AST ## NAME * concrete = typeid_cast<const AST ## NAME *>(&ast)) \
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formatAST(*concrete, s, indent, hilite, one_line, need_parens);
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if (false) {}
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DISPATCH(SelectQuery)
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DISPATCH(InsertQuery)
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DISPATCH(CreateQuery)
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DISPATCH(DropQuery)
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DISPATCH(RenameQuery)
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DISPATCH(ShowTablesQuery)
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DISPATCH(UseQuery)
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DISPATCH(SetQuery)
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DISPATCH(OptimizeQuery)
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DISPATCH(ExistsQuery)
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DISPATCH(ShowCreateQuery)
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DISPATCH(DescribeQuery)
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DISPATCH(ExpressionList)
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DISPATCH(Function)
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DISPATCH(Identifier)
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DISPATCH(Literal)
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DISPATCH(NameTypePair)
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DISPATCH(Asterisk)
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DISPATCH(OrderByElement)
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DISPATCH(Subquery)
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DISPATCH(AlterQuery)
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DISPATCH(ShowProcesslistQuery)
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DISPATCH(Join)
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DISPATCH(CheckQuery)
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// DISPATCH(MultiQuery)
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else
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throw Exception("Unknown element in AST: " + ast.getID()
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+ ((ast.range.first && (ast.range.second > ast.range.first))
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? " '" + std::string(ast.range.first, ast.range.second - ast.range.first) + "'"
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: ""),
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ErrorCodes::UNKNOWN_ELEMENT_IN_AST);
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#undef DISPATCH
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}
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void formatAST(const ASTExpressionList & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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for (ASTs::const_iterator it = ast.children.begin(); it != ast.children.end(); ++it)
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{
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if (it != ast.children.begin())
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s << ", ";
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formatAST(**it, s, indent, hilite, one_line, need_parens);
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}
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}
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/** Вывести список выражений в секциях запроса SELECT - по одному выражению на строку.
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*/
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static void formatExpressionListMultiline(const ASTExpressionList & ast, std::ostream & s, size_t indent, bool hilite)
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{
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std::string indent_str = "\n" + std::string(4 * (indent + 1), ' ');
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for (ASTs::const_iterator it = ast.children.begin(); it != ast.children.end(); ++it)
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{
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if (it != ast.children.begin())
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s << ", ";
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if (ast.children.size() > 1)
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s << indent_str;
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formatAST(**it, s, indent + 1, hilite, false);
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}
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}
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void formatAST(const ASTSelectQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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std::string nl_or_nothing = one_line ? "" : "\n";
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std::string indent_str = one_line ? "" : std::string(4 * indent, ' ');
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std::string nl_or_ws = one_line ? " " : "\n";
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s << (hilite ? hilite_keyword : "") << indent_str << "SELECT " << (ast.distinct ? "DISTINCT " : "") << (hilite ? hilite_none : "");
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one_line
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? formatAST(*ast.select_expression_list, s, indent, hilite, one_line)
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: formatExpressionListMultiline(typeid_cast<const ASTExpressionList &>(*ast.select_expression_list), s, indent, hilite);
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if (ast.table)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "FROM " << (hilite ? hilite_none : "");
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if (ast.database)
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{
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formatAST(*ast.database, s, indent, hilite, one_line);
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s << ".";
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}
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if (typeid_cast<const ASTSelectQuery *>(&*ast.table))
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{
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if (one_line)
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s << " (";
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else
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s << "\n" << indent_str << "(\n";
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formatAST(*ast.table, s, indent + 1, hilite, one_line);
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if (one_line)
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s << ")";
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else
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s << "\n" << indent_str << ")";
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}
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else
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formatAST(*ast.table, s, indent, hilite, one_line);
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}
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if (ast.array_join_expression_list)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "ARRAY JOIN " << (hilite ? hilite_none : "");
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one_line
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? formatAST(*ast.array_join_expression_list, s, indent, hilite, one_line)
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: formatExpressionListMultiline(typeid_cast<const ASTExpressionList &>(*ast.array_join_expression_list), s, indent, hilite);
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}
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if (ast.join)
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{
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s << " ";
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formatAST(*ast.join, s, indent, hilite, one_line);
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}
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if (ast.final)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "FINAL" << (hilite ? hilite_none : "");
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}
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if (ast.sample_size)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "SAMPLE " << (hilite ? hilite_none : "");
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formatAST(*ast.sample_size, s, indent, hilite, one_line);
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}
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if (ast.prewhere_expression)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "PREWHERE " << (hilite ? hilite_none : "");
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formatAST(*ast.prewhere_expression, s, indent, hilite, one_line);
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}
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if (ast.where_expression)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "WHERE " << (hilite ? hilite_none : "");
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formatAST(*ast.where_expression, s, indent, hilite, one_line);
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}
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if (ast.group_expression_list)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "GROUP BY " << (hilite ? hilite_none : "");
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one_line
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? formatAST(*ast.group_expression_list, s, indent, hilite, one_line)
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: formatExpressionListMultiline(typeid_cast<const ASTExpressionList &>(*ast.group_expression_list), s, indent, hilite);
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}
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if (ast.group_by_with_totals)
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << (one_line ? "" : " ") << "WITH TOTALS" << (hilite ? hilite_none : "");
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if (ast.having_expression)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "HAVING " << (hilite ? hilite_none : "");
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formatAST(*ast.having_expression, s, indent, hilite, one_line);
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}
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if (ast.order_expression_list)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "ORDER BY " << (hilite ? hilite_none : "");
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one_line
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? formatAST(*ast.order_expression_list, s, indent, hilite, one_line)
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: formatExpressionListMultiline(typeid_cast<const ASTExpressionList &>(*ast.order_expression_list), s, indent, hilite);
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}
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if (ast.limit_length)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "LIMIT " << (hilite ? hilite_none : "");
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if (ast.limit_offset)
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{
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formatAST(*ast.limit_offset, s, indent, hilite, one_line);
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s << ", ";
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}
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formatAST(*ast.limit_length, s, indent, hilite, one_line);
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}
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if (ast.format)
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{
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "FORMAT " << (hilite ? hilite_none : "");
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formatAST(*ast.format, s, indent, hilite, one_line);
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}
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}
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void formatAST(const ASTSubquery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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std::string indent_str = one_line ? "" : std::string(4 * indent, ' ');
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std::string nl_or_nothing = one_line ? "" : "\n";
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s << nl_or_nothing << indent_str << "(" << nl_or_nothing;
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formatAST(*ast.children[0], s, indent + 1, hilite, one_line);
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s << nl_or_nothing << indent_str << ")";
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}
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void formatAST(const ASTCreateQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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std::string nl_or_ws = one_line ? " " : "\n";
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if (!ast.database.empty() && ast.table.empty())
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{
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s << (hilite ? hilite_keyword : "") << (ast.attach ? "ATTACH DATABASE " : "CREATE DATABASE ") << (ast.if_not_exists ? "IF NOT EXISTS " : "") << (hilite ? hilite_none : "")
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<< backQuoteIfNeed(ast.database);
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return;
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}
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{
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std::string what = "TABLE";
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if (ast.is_view)
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what = "VIEW";
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if (ast.is_materialized_view)
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what = "MATERIALIZED VIEW";
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s << (hilite ? hilite_keyword : "") << (ast.attach ? "ATTACH " : "CREATE ") << (ast.is_temporary ? "TEMPORARY " : "") << what << " " << (ast.if_not_exists ? "IF NOT EXISTS " : "") << (hilite ? hilite_none : "")
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<< (!ast.database.empty() ? backQuoteIfNeed(ast.database) + "." : "") << backQuoteIfNeed(ast.table);
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}
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if (!ast.as_table.empty())
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{
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s << (hilite ? hilite_keyword : "") << " AS " << (hilite ? hilite_none : "")
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<< (!ast.as_database.empty() ? backQuoteIfNeed(ast.as_database) + "." : "") << backQuoteIfNeed(ast.as_table);
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}
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if (ast.columns)
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{
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s << (one_line ? " (" : "\n(");
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formatAST(*ast.columns, s, indent + 1, hilite, one_line);
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s << (one_line ? ")" : "\n)");
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}
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if (ast.storage && !ast.is_materialized_view && !ast.is_view)
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{
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s << (hilite ? hilite_keyword : "") << " ENGINE" << (hilite ? hilite_none : "") << " = ";
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formatAST(*ast.storage, s, indent, hilite, one_line);
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}
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if (ast.inner_storage)
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{
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s << (hilite ? hilite_keyword : "") << " ENGINE" << (hilite ? hilite_none : "") << " = ";
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formatAST(*ast.inner_storage, s, indent, hilite, one_line);
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}
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if (ast.is_populate)
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{
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s << (hilite ? hilite_keyword : "") << " POPULATE" << (hilite ? hilite_none : "");
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}
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if (ast.select)
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{
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s << (hilite ? hilite_keyword : "") << " AS" << nl_or_ws << (hilite ? hilite_none : "");
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formatAST(*ast.select, s, indent, hilite, one_line);
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}
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}
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void formatAST(const ASTDropQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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if (ast.table.empty() && !ast.database.empty())
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{
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s << (hilite ? hilite_keyword : "") << (ast.detach ? "DETACH DATABASE " : "DROP DATABASE ") << (ast.if_exists ? "IF EXISTS " : "") << (hilite ? hilite_none : "") << backQuoteIfNeed(ast.database);
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return;
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}
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s << (hilite ? hilite_keyword : "") << (ast.detach ? "DETACH TABLE " : "DROP TABLE ") << (ast.if_exists ? "IF EXISTS " : "") << (hilite ? hilite_none : "")
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<< (!ast.database.empty() ? backQuoteIfNeed(ast.database) + "." : "") << backQuoteIfNeed(ast.table);
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}
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void formatAST(const ASTOptimizeQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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s << (hilite ? hilite_keyword : "") << "OPTIMIZE TABLE " << (hilite ? hilite_none : "")
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<< (!ast.database.empty() ? backQuoteIfNeed(ast.database) + "." : "") << backQuoteIfNeed(ast.table);
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}
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void formatAST(const ASTQueryWithTableAndOutput & ast, std::string name, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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s << (hilite ? hilite_keyword : "") << name << " " << (hilite ? hilite_none : "")
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<< (!ast.database.empty() ? backQuoteIfNeed(ast.database) + "." : "") << backQuoteIfNeed(ast.table);
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if (ast.format)
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{
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std::string indent_str = one_line ? "" : std::string(4 * indent, ' ');
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std::string nl_or_ws = one_line ? " " : "\n";
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "FORMAT " << (hilite ? hilite_none : "");
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formatAST(*ast.format, s, indent, hilite, one_line);
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}
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}
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void formatAST(const ASTExistsQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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formatAST(static_cast<const ASTQueryWithTableAndOutput &>(ast), "EXISTS TABLE", s, indent, hilite, one_line);
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}
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void formatAST(const ASTDescribeQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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formatAST(static_cast<const ASTQueryWithTableAndOutput &>(ast), "DESCRIBE TABLE", s, indent, hilite, one_line);
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}
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void formatAST(const ASTShowCreateQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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formatAST(static_cast<const ASTQueryWithTableAndOutput &>(ast), "SHOW CREATE TABLE", s, indent, hilite, one_line);
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}
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void formatAST(const ASTRenameQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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s << (hilite ? hilite_keyword : "") << "RENAME TABLE " << (hilite ? hilite_none : "");
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for (ASTRenameQuery::Elements::const_iterator it = ast.elements.begin(); it != ast.elements.end(); ++it)
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{
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if (it != ast.elements.begin())
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s << ", ";
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s << (!it->from.database.empty() ? backQuoteIfNeed(it->from.database) + "." : "") << backQuoteIfNeed(it->from.table)
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<< (hilite ? hilite_keyword : "") << " TO " << (hilite ? hilite_none : "")
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<< (!it->to.database.empty() ? backQuoteIfNeed(it->to.database) + "." : "") << backQuoteIfNeed(it->to.table);
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}
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}
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void formatAST(const ASTSetQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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s << (hilite ? hilite_keyword : "") << "SET " << (ast.global ? "GLOBAL " : "") << (hilite ? hilite_none : "");
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for (ASTSetQuery::Changes::const_iterator it = ast.changes.begin(); it != ast.changes.end(); ++it)
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{
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if (it != ast.changes.begin())
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s << ", ";
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s << it->name << " = " << apply_visitor(FieldVisitorToString(), it->value);
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}
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}
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void formatAST(const ASTShowTablesQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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if (ast.databases)
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{
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s << (hilite ? hilite_keyword : "") << "SHOW DATABASES" << (hilite ? hilite_none : "");
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}
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else
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{
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s << (hilite ? hilite_keyword : "") << "SHOW TABLES" << (hilite ? hilite_none : "");
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if (!ast.from.empty())
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s << (hilite ? hilite_keyword : "") << " FROM " << (hilite ? hilite_none : "")
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<< backQuoteIfNeed(ast.from);
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if (!ast.like.empty())
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s << (hilite ? hilite_keyword : "") << " LIKE " << (hilite ? hilite_none : "")
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<< mysqlxx::quote << ast.like;
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}
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if (ast.format)
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{
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std::string indent_str = one_line ? "" : std::string(4 * indent, ' ');
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std::string nl_or_ws = one_line ? " " : "\n";
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s << (hilite ? hilite_keyword : "") << nl_or_ws << indent_str << "FORMAT " << (hilite ? hilite_none : "");
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formatAST(*ast.format, s, indent, hilite, one_line);
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}
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}
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void formatAST(const ASTUseQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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s << (hilite ? hilite_keyword : "") << "USE " << (hilite ? hilite_none : "") << backQuoteIfNeed(ast.database);
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return;
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}
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void formatAST(const ASTShowProcesslistQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
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{
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s << (hilite ? hilite_keyword : "") << "SHOW PROCESSLIST" << (hilite ? hilite_none : "");
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return;
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}
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||
void formatAST(const ASTInsertQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << "INSERT INTO " << (hilite ? hilite_none : "")
|
||
<< (!ast.database.empty() ? backQuoteIfNeed(ast.database) + "." : "") << backQuoteIfNeed(ast.table);
|
||
|
||
if (!ast.insert_id.empty())
|
||
s << (hilite ? hilite_keyword : "") << " ID = " << (hilite ? hilite_none : "")
|
||
<< mysqlxx::quote << ast.insert_id;
|
||
|
||
if (ast.columns)
|
||
{
|
||
s << " (";
|
||
formatAST(*ast.columns, s, indent, hilite, one_line);
|
||
s << ")";
|
||
}
|
||
|
||
if (ast.select)
|
||
{
|
||
s << " ";
|
||
formatAST(*ast.select, s, indent, hilite, one_line);
|
||
}
|
||
else
|
||
{
|
||
if (!ast.format.empty())
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << " FORMAT " << (hilite ? hilite_none : "") << ast.format;
|
||
}
|
||
else
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << " VALUES" << (hilite ? hilite_none : "");
|
||
}
|
||
}
|
||
}
|
||
|
||
static void writeAlias(const String & name, std::ostream & s, bool hilite, bool one_line)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << " AS " << (hilite ? hilite_alias : "");
|
||
|
||
WriteBufferFromOStream wb(s, 32);
|
||
writeProbablyBackQuotedString(name, wb);
|
||
wb.next();
|
||
|
||
s << (hilite ? hilite_none : "");
|
||
}
|
||
|
||
void formatAST(const ASTFunction & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
/// Если есть алиас, то требуются скобки вокруг всего выражения, включая алиас. Потому что запись вида 0 AS x + 0 синтаксически некорректна.
|
||
if (need_parens && !ast.alias.empty())
|
||
s << '(';
|
||
|
||
/// Стоит ли записать эту функцию в виде оператора?
|
||
bool written = false;
|
||
if (ast.arguments && !ast.parameters)
|
||
{
|
||
if (ast.arguments->children.size() == 1)
|
||
{
|
||
const char * operators[] =
|
||
{
|
||
"negate", "-",
|
||
"not", "NOT ",
|
||
nullptr
|
||
};
|
||
|
||
for (const char ** func = operators; *func; func += 2)
|
||
{
|
||
if (0 == strcmp(ast.name.c_str(), func[0]))
|
||
{
|
||
s << (hilite ? hilite_operator : "") << func[1] << (hilite ? hilite_none : "");
|
||
formatAST(*ast.arguments, s, indent, hilite, one_line, true);
|
||
written = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
/** need_parens - нужны ли скобки вокруг выражения с оператором.
|
||
* Они нужны, только если это выражение входит в другое выражение с оператором.
|
||
*/
|
||
|
||
if (!written && ast.arguments->children.size() == 2)
|
||
{
|
||
const char * operators[] =
|
||
{
|
||
"multiply", " * ",
|
||
"divide", " / ",
|
||
"modulo", " % ",
|
||
"plus", " + ",
|
||
"minus", " - ",
|
||
"notEquals", " != ",
|
||
"lessOrEquals", " <= ",
|
||
"greaterOrEquals", " >= ",
|
||
"less", " < ",
|
||
"greater", " > ",
|
||
"equals", " = ",
|
||
"like", " LIKE ",
|
||
"notLike", " NOT LIKE ",
|
||
"in", " IN ",
|
||
"notIn", " NOT IN ",
|
||
"globalIn", " GLOBAL IN ",
|
||
"globalNotIn", " GLOBAL NOT IN ",
|
||
nullptr
|
||
};
|
||
|
||
for (const char ** func = operators; *func; func += 2)
|
||
{
|
||
if (0 == strcmp(ast.name.c_str(), func[0]))
|
||
{
|
||
if (need_parens)
|
||
s << '(';
|
||
formatAST(*ast.arguments->children[0], s, indent, hilite, one_line, true);
|
||
s << (hilite ? hilite_operator : "") << func[1] << (hilite ? hilite_none : "");
|
||
formatAST(*ast.arguments->children[1], s, indent, hilite, one_line, true);
|
||
if (need_parens)
|
||
s << ')';
|
||
written = true;
|
||
}
|
||
}
|
||
|
||
if (!written && 0 == strcmp(ast.name.c_str(), "arrayElement"))
|
||
{
|
||
formatAST(*ast.arguments->children[0], s, indent, hilite, one_line, true);
|
||
s << (hilite ? hilite_operator : "") << '[' << (hilite ? hilite_none : "");
|
||
formatAST(*ast.arguments->children[1], s, indent, hilite, one_line, true);
|
||
s << (hilite ? hilite_operator : "") << ']' << (hilite ? hilite_none : "");
|
||
written = true;
|
||
}
|
||
|
||
if (!written && 0 == strcmp(ast.name.c_str(), "tupleElement"))
|
||
{
|
||
formatAST(*ast.arguments->children[0], s, indent, hilite, one_line, true);
|
||
s << (hilite ? hilite_operator : "") << "." << (hilite ? hilite_none : "");
|
||
formatAST(*ast.arguments->children[1], s, indent, hilite, one_line, true);
|
||
written = true;
|
||
}
|
||
}
|
||
|
||
if (!written && ast.arguments->children.size() >= 2)
|
||
{
|
||
const char * operators[] =
|
||
{
|
||
"and", " AND ",
|
||
"or", " OR ",
|
||
nullptr
|
||
};
|
||
|
||
for (const char ** func = operators; *func; func += 2)
|
||
{
|
||
if (0 == strcmp(ast.name.c_str(), func[0]))
|
||
{
|
||
if (need_parens)
|
||
s << '(';
|
||
for (size_t i = 0; i < ast.arguments->children.size(); ++i)
|
||
{
|
||
if (i != 0)
|
||
s << (hilite ? hilite_operator : "") << func[1] << (hilite ? hilite_none : "");
|
||
formatAST(*ast.arguments->children[i], s, indent, hilite, one_line, true);
|
||
}
|
||
if (need_parens)
|
||
s << ')';
|
||
written = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!written && ast.arguments->children.size() >= 1 && 0 == strcmp(ast.name.c_str(), "array"))
|
||
{
|
||
s << (hilite ? hilite_operator : "") << '[' << (hilite ? hilite_none : "");
|
||
for (size_t i = 0; i < ast.arguments->children.size(); ++i)
|
||
{
|
||
if (i != 0)
|
||
s << ", ";
|
||
formatAST(*ast.arguments->children[i], s, indent, hilite, one_line, false);
|
||
}
|
||
s << (hilite ? hilite_operator : "") << ']' << (hilite ? hilite_none : "");
|
||
written = true;
|
||
}
|
||
|
||
if (!written && ast.arguments->children.size() >= 2 && 0 == strcmp(ast.name.c_str(), "tuple"))
|
||
{
|
||
s << (hilite ? hilite_operator : "") << '(' << (hilite ? hilite_none : "");
|
||
for (size_t i = 0; i < ast.arguments->children.size(); ++i)
|
||
{
|
||
if (i != 0)
|
||
s << ", ";
|
||
formatAST(*ast.arguments->children[i], s, indent, hilite, one_line, false);
|
||
}
|
||
s << (hilite ? hilite_operator : "") << ')' << (hilite ? hilite_none : "");
|
||
written = true;
|
||
}
|
||
}
|
||
|
||
if (!written)
|
||
{
|
||
s << (hilite ? hilite_function : "") << ast.name;
|
||
|
||
if (ast.parameters)
|
||
{
|
||
s << '(' << (hilite ? hilite_none : "");
|
||
formatAST(*ast.parameters, s, indent, hilite, one_line);
|
||
s << (hilite ? hilite_function : "") << ')';
|
||
}
|
||
|
||
if (ast.arguments)
|
||
{
|
||
s << '(' << (hilite ? hilite_none : "");
|
||
formatAST(*ast.arguments, s, indent, hilite, one_line);
|
||
s << (hilite ? hilite_function : "") << ')';
|
||
}
|
||
|
||
s << (hilite ? hilite_none : "");
|
||
}
|
||
|
||
if (!ast.alias.empty())
|
||
{
|
||
writeAlias(ast.alias, s, hilite, one_line);
|
||
if (need_parens)
|
||
s << ')';
|
||
}
|
||
}
|
||
|
||
void formatAST(const ASTIdentifier & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
if (need_parens && !ast.alias.empty())
|
||
s << '(';
|
||
|
||
s << (hilite ? hilite_identifier : "");
|
||
|
||
WriteBufferFromOStream wb(s, 32);
|
||
writeProbablyBackQuotedString(ast.name, wb);
|
||
wb.next();
|
||
|
||
s << (hilite ? hilite_none : "");
|
||
|
||
if (!ast.alias.empty())
|
||
{
|
||
writeAlias(ast.alias, s, hilite, one_line);
|
||
if (need_parens)
|
||
s << ')';
|
||
}
|
||
}
|
||
|
||
void formatAST(const ASTLiteral & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
if (need_parens && !ast.alias.empty())
|
||
s << '(';
|
||
|
||
s << apply_visitor(FieldVisitorToString(), ast.value);
|
||
|
||
if (!ast.alias.empty())
|
||
{
|
||
writeAlias(ast.alias, s, hilite, one_line);
|
||
if (need_parens)
|
||
s << ')';
|
||
}
|
||
}
|
||
|
||
void formatAST(const ASTNameTypePair & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
std::string indent_str = one_line ? "" : std::string(4 * indent, ' ');
|
||
std::string nl_or_ws = one_line ? " " : "\n";
|
||
|
||
s << nl_or_ws << indent_str << backQuoteIfNeed(ast.name) << " ";
|
||
formatAST(*ast.type, s, indent, hilite, one_line);
|
||
}
|
||
|
||
void formatAST(const ASTAsterisk & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
s << "*";
|
||
}
|
||
|
||
void formatAST(const ASTOrderByElement & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
formatAST(*ast.children.front(), s, indent, hilite, one_line);
|
||
s << (hilite ? hilite_keyword : "") << (ast.direction == -1 ? " DESC" : " ASC") << (hilite ? hilite_none : "");
|
||
if (!ast.collator.isNull())
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << " COLLATE " << (hilite ? hilite_none : "")
|
||
<< "'" << ast.collator->getLocale() << "'";
|
||
}
|
||
}
|
||
|
||
void formatAST(const ASTAlterQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
std::string nl_or_nothing = one_line ? "" : "\n";
|
||
|
||
std::string indent_str = one_line ? "" : std::string(4 * indent, ' ');
|
||
std::string nl_or_ws = one_line ? " " : "\n";
|
||
|
||
s << (hilite ? hilite_keyword : "") << indent_str << "ALTER TABLE " << (hilite ? hilite_none : "");
|
||
|
||
if (!ast.table.empty())
|
||
{
|
||
if (!ast.database.empty())
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << ast.database << (hilite ? hilite_none : "");
|
||
s << ".";
|
||
}
|
||
s << (hilite ? hilite_keyword : "") << indent_str << ast.table << (hilite ? hilite_none : "");
|
||
}
|
||
s << nl_or_ws;
|
||
|
||
for (size_t i = 0; i < ast.parameters.size(); ++i)
|
||
{
|
||
const ASTAlterQuery::Parameters &p = ast.parameters[i];
|
||
|
||
if (p.type == ASTAlterQuery::ADD_COLUMN)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << "ADD COLUMN " << (hilite ? hilite_none : "");
|
||
formatAST(*p.name_type, s, indent, hilite, true);
|
||
|
||
/// AFTER
|
||
if (p.column)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << " AFTER " << (hilite ? hilite_none : "");
|
||
formatAST(*p.column, s, indent, hilite, one_line);
|
||
}
|
||
}
|
||
else if (p.type == ASTAlterQuery::DROP_COLUMN)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << "DROP COLUMN " << (hilite ? hilite_none : "");
|
||
formatAST(*p.column, s, indent, hilite, true);
|
||
}
|
||
else if (p.type == ASTAlterQuery::MODIFY_COLUMN)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << "MODIFY COLUMN " << (hilite ? hilite_none : "");
|
||
formatAST(*p.name_type, s, indent, hilite, true);
|
||
}
|
||
else if (p.type == ASTAlterQuery::DROP_PARTITION)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << (p.detach ? "DETACH" : "DROP") << " PARTITION "
|
||
<< (hilite ? hilite_none : "");
|
||
formatAST(*p.partition, s, indent, hilite, true);
|
||
}
|
||
else if (p.type == ASTAlterQuery::ATTACH_PARTITION)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << "ATTACH " << (p.unreplicated ? "UNREPLICATED" : "")
|
||
<< (p.part ? " PART " : " PARTITION ") << (hilite ? hilite_none : "");
|
||
formatAST(*p.partition, s, indent, hilite, true);
|
||
}
|
||
else
|
||
throw Exception("Unexpected type of ALTER", ErrorCodes::UNEXPECTED_AST_STRUCTURE);
|
||
|
||
std::string comma = (i < (ast.parameters.size() -1) ) ? "," : "";
|
||
s << (hilite ? hilite_keyword : "") << indent_str << comma << (hilite ? hilite_none : "");
|
||
|
||
s << nl_or_ws;
|
||
}
|
||
}
|
||
|
||
void formatAST(const ASTJoin & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
s << (hilite ? hilite_keyword : "")
|
||
<< (ast.locality == ASTJoin::Global ? "GLOBAL " : "")
|
||
<< (ast.strictness == ASTJoin::Any ? "ANY " : "ALL ")
|
||
<< (ast.kind == ASTJoin::Inner ? "INNER " : "LEFT ")
|
||
<< "JOIN"
|
||
<< (hilite ? hilite_none : "");
|
||
|
||
formatAST(*ast.table, s, indent, hilite, one_line, need_parens);
|
||
|
||
s << (hilite ? hilite_keyword : "") << " USING " << (hilite ? hilite_none : "");
|
||
|
||
formatAST(*ast.using_expr_list, s, indent, hilite, one_line, need_parens);
|
||
}
|
||
|
||
void formatAST(const ASTCheckQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
std::string nl_or_nothing = one_line ? "" : "\n";
|
||
|
||
std::string indent_str = one_line ? "" : std::string(4 * indent, ' ');
|
||
std::string nl_or_ws = one_line ? " " : "\n";
|
||
|
||
s << (hilite ? hilite_keyword : "") << indent_str << "CHECK TABLE " << (hilite ? hilite_none : "");
|
||
|
||
if (!ast.table.empty())
|
||
{
|
||
if (!ast.database.empty())
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << indent_str << ast.database << (hilite ? hilite_none : "");
|
||
s << ".";
|
||
}
|
||
s << (hilite ? hilite_keyword : "") << indent_str << ast.table << (hilite ? hilite_none : "");
|
||
}
|
||
s << nl_or_ws;
|
||
}
|
||
|
||
/*
|
||
void formatAST(const ASTMultiQuery & ast, std::ostream & s, size_t indent, bool hilite, bool one_line, bool need_parens)
|
||
{
|
||
s << (hilite ? hilite_keyword : "") << "{" << (hilite ? hilite_none : "");
|
||
|
||
for (const auto & child : ast.children)
|
||
{
|
||
s << "\n";
|
||
formatAST(*child, s, indent + 1, hilite, one_line, need_parens);
|
||
s << ";\n";
|
||
}
|
||
|
||
s << (hilite ? hilite_keyword : "") << "}" << (hilite ? hilite_none : "");
|
||
}*/
|
||
|
||
|
||
String formatColumnsForCreateQuery(NamesAndTypesList & columns)
|
||
{
|
||
std::string res;
|
||
res += "(";
|
||
for (NamesAndTypesList::iterator it = columns.begin(); it != columns.end(); ++it)
|
||
{
|
||
if (it != columns.begin())
|
||
res += ", ";
|
||
res += backQuoteIfNeed(it->name);
|
||
res += " ";
|
||
res += it->type->getName();
|
||
}
|
||
res += ")";
|
||
return res;
|
||
}
|
||
|
||
}
|
||
|