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35 lines
847 B
C++
35 lines
847 B
C++
#pragma once
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#include <Parsers/IAST.h>
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namespace DB
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{
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/// Common AST for TCL queries
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class ASTTransactionControl : public IAST
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{
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public:
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enum QueryType
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{
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BEGIN,
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COMMIT,
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ROLLBACK,
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SET_SNAPSHOT,
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};
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QueryType action;
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UInt64 snapshot; /// For SET TRANSACTION SNAPSHOT ...
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explicit ASTTransactionControl(QueryType action_) : action(action_) {}
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String getID(char /*delimiter*/) const override { return "ASTTransactionControl"; }
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ASTPtr clone() const override { return std::make_shared<ASTTransactionControl>(*this); }
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void formatImpl(const FormatSettings & format, FormatState & /*state*/, FormatStateStacked /*frame*/) const override;
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void updateTreeHashImpl(SipHash & hash_state, bool ignore_aliases) const override;
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QueryKind getQueryKind() const override;
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};
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}
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