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42 lines
1.0 KiB
C++
42 lines
1.0 KiB
C++
#pragma once
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#include <Common/FieldVisitors.h>
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#include <Common/SettingsChanges.h>
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#include <Parsers/IAST.h>
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namespace DB
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{
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/** SET query
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*/
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class ASTSetQuery : public IAST
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{
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public:
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bool is_standalone = true; /// If false, this AST is a part of another query, such as SELECT.
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SettingsChanges changes;
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/** Get the text that identifies this element. */
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String getID(char) const override { return "Set"; }
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ASTPtr clone() const override { return std::make_shared<ASTSetQuery>(*this); }
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void formatImpl(const FormatSettings & settings, FormatState &, FormatStateStacked) const override
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{
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if (is_standalone)
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settings.ostr << (settings.hilite ? hilite_keyword : "") << "SET " << (settings.hilite ? hilite_none : "");
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for (auto it = changes.begin(); it != changes.end(); ++it)
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{
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if (it != changes.begin())
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settings.ostr << ", ";
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settings.ostr << it->name << " = " << applyVisitor(FieldVisitorToString(), it->value);
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}
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}
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};
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}
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