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111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
#include <Parsers/ASTSelectWithUnionQuery.h>
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#include <Parsers/ASTSubquery.h>
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#include <Common/typeid_cast.h>
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#include <Parsers/SelectUnionMode.h>
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#include <IO/Operators.h>
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#include <Parsers/ASTSelectQuery.h>
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namespace DB
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{
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ASTPtr ASTSelectWithUnionQuery::clone() const
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{
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auto res = std::make_shared<ASTSelectWithUnionQuery>(*this);
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res->children.clear();
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res->list_of_selects = list_of_selects->clone();
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res->children.push_back(res->list_of_selects);
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res->union_mode = union_mode;
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res->list_of_modes = list_of_modes;
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res->set_of_modes = set_of_modes;
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cloneOutputOptions(*res);
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return res;
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}
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void ASTSelectWithUnionQuery::formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
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{
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std::string indent_str = settings.one_line ? "" : std::string(4 * frame.indent, ' ');
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auto mode_to_str = [&](auto mode)
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{
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if (mode == SelectUnionMode::UNION_DEFAULT)
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return "UNION";
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else if (mode == SelectUnionMode::UNION_ALL)
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return "UNION ALL";
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else if (mode == SelectUnionMode::UNION_DISTINCT)
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return "UNION DISTINCT";
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else if (mode == SelectUnionMode::EXCEPT_DEFAULT)
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return "EXCEPT";
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else if (mode == SelectUnionMode::EXCEPT_ALL)
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return "EXCEPT ALL";
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else if (mode == SelectUnionMode::EXCEPT_DISTINCT)
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return "EXCEPT DISTINCT";
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else if (mode == SelectUnionMode::INTERSECT_DEFAULT)
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return "INTERSECT";
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else if (mode == SelectUnionMode::INTERSECT_ALL)
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return "INTERSECT ALL";
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else if (mode == SelectUnionMode::INTERSECT_DISTINCT)
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return "INTERSECT DISTINCT";
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return "";
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};
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for (ASTs::const_iterator it = list_of_selects->children.begin(); it != list_of_selects->children.end(); ++it)
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{
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if (it != list_of_selects->children.begin())
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settings.ostr << settings.nl_or_ws << indent_str << (settings.hilite ? hilite_keyword : "")
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<< mode_to_str((is_normalized) ? union_mode : list_of_modes[it - list_of_selects->children.begin() - 1])
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<< (settings.hilite ? hilite_none : "");
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if (auto * node = (*it)->as<ASTSelectWithUnionQuery>())
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{
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if (it != list_of_selects->children.begin())
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settings.ostr << settings.nl_or_ws;
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settings.ostr << indent_str;
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auto sub_query = std::make_shared<ASTSubquery>(*it);
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sub_query->formatImpl(settings, state, frame);
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}
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else
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{
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if (it != list_of_selects->children.begin())
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settings.ostr << settings.nl_or_ws;
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(*it)->formatImpl(settings, state, frame);
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}
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}
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}
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bool ASTSelectWithUnionQuery::hasNonDefaultUnionMode() const
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{
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return set_of_modes.contains(SelectUnionMode::UNION_DISTINCT) || set_of_modes.contains(SelectUnionMode::INTERSECT_DISTINCT)
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|| set_of_modes.contains(SelectUnionMode::EXCEPT_DISTINCT);
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}
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bool ASTSelectWithUnionQuery::hasQueryParameters() const
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{
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if (!has_query_parameters.has_value())
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{
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for (const auto & child : list_of_selects->children)
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{
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if (auto * select_node = child->as<ASTSelectQuery>())
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{
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if (select_node->hasQueryParameters())
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{
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has_query_parameters = true;
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return has_query_parameters.value();
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}
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}
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}
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has_query_parameters = false;
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}
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return has_query_parameters.value();
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}
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}
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