merge_many_buff.h File Reference

#include <algorithm>
#include "my_dbug.h"
#include "my_sys.h"
#include "sql/mysqld.h"
#include "sql/sql_base.h"
#include "sql/sql_sort.h"

Go to the source code of this file.

Functions
template<typename Merge_param >
bool	merge_many_buff (THD *thd, Merge_param *param, Sort_buffer sort_buffer, Merge_chunk_array chunk_array, size_t *p_num_chunks, IO_CACHE *t_file)
	Merges buffers to make < MERGEBUFF2 buffers. More...

Function Documentation

merge_many_buff()

template<typename Merge_param >

bool merge_many_buff	(	THD *	thd,
		Merge_param *	param,
		Sort_buffer	sort_buffer,
		Merge_chunk_array	chunk_array,
		size_t *	p_num_chunks,
		IO_CACHE *	t_file
	)

Merges buffers to make < MERGEBUFF2 buffers.

Parameters

	thd	thread context
	param	Sort parameters.
	sort_buffer	The main memory buffer.
	chunk_array	Array of chunk descriptors to merge.
[out]	p_num_chunks	The number of chunks left in the output file.
[out]	t_file	Where to store the result.

Returns

false if success, true if error