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#pragma once
#include <Interpreters/IInterpreter.h>
#include <Parsers/IAST_fwd.h>
namespace DB
{
/** Return list of all engines
*/
class InterpreterShowEnginesQuery : public IInterpreter, WithMutableContext
{
public:
InterpreterShowEnginesQuery(const ASTPtr & query_ptr_, ContextMutablePtr context_)
: WithMutableContext(context_), query_ptr(query_ptr_) {}
BlockIO execute() override;
/// We ignore the quota and limits here because execute() will rewrite a show query as a SELECT query and then
/// the SELECT query will check the quota and limits.
bool ignoreQuota() const override { return true; }
bool ignoreLimits() const override { return true; }
private:
ASTPtr query_ptr;
};
}
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