optimizer_trace.h File Reference

#include <array>
#include <cassert>
#include <deque>
#include <memory>
#include <ostream>
#include "sql/opt_trace_context.h"
#include "sql/sql_lex.h"

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Classes
class	TraceBuffer
	This class is used for storing unstructured optimizer trace text (as used by the Hypergraph optimizer). More...
class	UnstructuredTrace
	Trace in the form of plain text (i.e. More...

Functions
std::ostream &	Trace (THD *thd)
	Fetch the ostream that we write optimizer trace into. More...
bool	TraceStarted (THD *thd)

Function Documentation

Trace()

std::ostream & Trace ( THD *  thd )

inline

Fetch the ostream that we write optimizer trace into.

TraceStarted()

bool TraceStarted ( THD *  thd )

inline

Returns

'true' if unstructured optimizer trace (as used by Hypergraph) is started.