2016-01-28 01:00:27 +00:00
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#include <DB/Parsers/ASTAlterQuery.h>
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#include <mysqlxx/Manip.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int UNEXPECTED_AST_STRUCTURE;
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}
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ASTAlterQuery::Parameters::Parameters() : type(NO_TYPE) {}
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void ASTAlterQuery::Parameters::clone(Parameters & p) const
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{
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p = *this;
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if (col_decl) p.col_decl = col_decl->clone();
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if (column) p.column = column->clone();
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if (partition) p.partition = partition->clone();
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if (last_partition) p.last_partition = last_partition->clone();
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if (weighted_zookeeper_paths) p.weighted_zookeeper_paths = weighted_zookeeper_paths->clone();
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2016-01-28 01:00:42 +00:00
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if (sharding_key_expr) p.sharding_key_expr = sharding_key_expr->clone();
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2016-03-01 17:47:53 +00:00
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if (coordinator) p.coordinator = coordinator->clone();
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2016-01-28 01:00:27 +00:00
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}
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void ASTAlterQuery::addParameters(const Parameters & params)
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{
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parameters.push_back(params);
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if (params.col_decl)
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children.push_back(params.col_decl);
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if (params.column)
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children.push_back(params.column);
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if (params.partition)
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children.push_back(params.partition);
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if (params.last_partition)
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children.push_back(params.last_partition);
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if (params.weighted_zookeeper_paths)
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children.push_back(params.weighted_zookeeper_paths);
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2016-01-28 01:00:42 +00:00
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if (params.sharding_key_expr)
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children.push_back(params.sharding_key_expr);
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2016-03-01 17:47:53 +00:00
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if (params.coordinator)
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children.push_back(params.coordinator);
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2016-01-28 01:00:27 +00:00
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}
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ASTAlterQuery::ASTAlterQuery(StringRange range_) : IAST(range_)
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{
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}
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/** Получить текст, который идентифицирует этот элемент. */
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String ASTAlterQuery::getID() const
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{
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return ("AlterQuery_" + database + "_" + table);
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}
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ASTPtr ASTAlterQuery::clone() const
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{
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ASTAlterQuery * res = new ASTAlterQuery(*this);
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for (ParameterContainer::size_type i = 0; i < parameters.size(); ++i)
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parameters[i].clone(res->parameters[i]);
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return res;
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}
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void ASTAlterQuery::formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
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{
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frame.need_parens = false;
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std::string indent_str = settings.one_line ? "" : std::string(4 * frame.indent, ' ');
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "ALTER TABLE " << (settings.hilite ? hilite_none : "");
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if (!table.empty())
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{
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if (!database.empty())
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{
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settings.ostr << indent_str << database;
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settings.ostr << ".";
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}
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settings.ostr << indent_str << table;
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}
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settings.ostr << settings.nl_or_ws;
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for (size_t i = 0; i < parameters.size(); ++i)
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{
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const ASTAlterQuery::Parameters & p = parameters[i];
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if (p.type == ASTAlterQuery::ADD_COLUMN)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "ADD COLUMN " << (settings.hilite ? hilite_none : "");
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p.col_decl->formatImpl(settings, state, frame);
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/// AFTER
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if (p.column)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << " AFTER " << (settings.hilite ? hilite_none : "");
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p.column->formatImpl(settings, state, frame);
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}
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}
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else if (p.type == ASTAlterQuery::DROP_COLUMN)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "DROP COLUMN " << (settings.hilite ? hilite_none : "");
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p.column->formatImpl(settings, state, frame);
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}
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else if (p.type == ASTAlterQuery::MODIFY_COLUMN)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "MODIFY COLUMN " << (settings.hilite ? hilite_none : "");
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p.col_decl->formatImpl(settings, state, frame);
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}
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else if (p.type == ASTAlterQuery::DROP_PARTITION)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << (p.detach ? "DETACH" : "DROP") << " PARTITION "
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<< (settings.hilite ? hilite_none : "");
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p.partition->formatImpl(settings, state, frame);
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}
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else if (p.type == ASTAlterQuery::ATTACH_PARTITION)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "ATTACH " << (p.unreplicated ? "UNREPLICATED " : "")
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<< (p.part ? "PART " : "PARTITION ") << (settings.hilite ? hilite_none : "");
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p.partition->formatImpl(settings, state, frame);
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}
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else if (p.type == ASTAlterQuery::FETCH_PARTITION)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "FETCH " << (p.unreplicated ? "UNREPLICATED " : "")
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<< "PARTITION " << (settings.hilite ? hilite_none : "");
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p.partition->formatImpl(settings, state, frame);
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settings.ostr << (settings.hilite ? hilite_keyword : "")
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<< " FROM " << (settings.hilite ? hilite_none : "") << mysqlxx::quote << p.from;
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}
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else if (p.type == ASTAlterQuery::FREEZE_PARTITION)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "FREEZE PARTITION " << (settings.hilite ? hilite_none : "");
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p.partition->formatImpl(settings, state, frame);
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}
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else if (p.type == ASTAlterQuery::RESHARD_PARTITION)
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "RESHARD ";
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if (p.partition)
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settings.ostr << "PARTITION ";
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settings.ostr << (settings.hilite ? hilite_none : "");
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if (p.partition)
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p.partition->formatImpl(settings, state, frame);
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if (p.partition && p.last_partition)
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settings.ostr << "..";
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if (p.last_partition)
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p.last_partition->formatImpl(settings, state, frame);
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std::string ws = p.partition ? " " : "";
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settings.ostr << (settings.hilite ? hilite_keyword : "") << ws
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<< "TO " << (settings.hilite ? hilite_none : "");
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FormatStateStacked frame_with_indent = frame;
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++frame_with_indent.indent;
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p.weighted_zookeeper_paths->formatImpl(settings, state, frame_with_indent);
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settings.ostr << settings.nl_or_ws;
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str
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2016-01-28 01:00:42 +00:00
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<< "USING " << (settings.hilite ? hilite_none : "");
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p.sharding_key_expr->formatImpl(settings, state, frame);
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2016-03-01 17:47:53 +00:00
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if (p.coordinator)
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{
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settings.ostr << settings.nl_or_ws;
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str
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<< "COORDINATE WITH " << (settings.hilite ? hilite_none : "");
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p.coordinator->formatImpl(settings, state, frame);
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}
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2016-01-28 01:00:27 +00:00
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}
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else
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throw Exception("Unexpected type of ALTER", ErrorCodes::UNEXPECTED_AST_STRUCTURE);
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std::string comma = (i < (parameters.size() -1) ) ? "," : "";
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settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << comma << (settings.hilite ? hilite_none : "");
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settings.ostr << settings.nl_or_ws;
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}
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}
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}
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