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[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring

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- Merge with current 10.0-base
This commit is contained in:
Sergey Petrunya
2013-08-24 00:46:49 +04:00
parent 97e640b9ae ef47cc1f09
commit 662bfed027
52 changed files with 2739 additions and 556 deletions
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42
sql/sql_select.h
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@@ -198,6 +198,12 @@ int rr_sequential(READ_RECORD *info);
int rr_sequential_and_unpack(READ_RECORD *info);
#include "opt_qpf.h"
/**************************************************************************************
* New EXPLAIN structures END
*************************************************************************************/
class JOIN_CACHE;
class SJ_TMP_TABLE;
class JOIN_TAB_RANGE;
@@ -252,7 +258,9 @@ typedef struct st_join_table {
JOIN_TAB_RANGE *bush_children;
/* Special content for EXPLAIN 'Extra' column or NULL if none */
const char *info;
enum Extra_tag info;
//const char *info;
/*
Bitmap of TAB_INFO_* bits that encodes special line for EXPLAIN 'Extra'
column, or 0 if there is no info.
@@ -1328,6 +1336,8 @@ public:
pre_sort_join_tab= NULL;
emb_sjm_nest= NULL;
sjm_lookup_tables= 0;
exec_qpf_saved= false;
/*
The following is needed because JOIN::cleanup(true) may be called for
joins for which JOIN::optimize was aborted with an error before a proper
@@ -1335,6 +1345,7 @@ public:
*/
table_access_tabs= NULL;
}
bool exec_qpf_saved;
int prepare(Item ***rref_pointer_array, TABLE_LIST *tables, uint wind_num,
COND *conds, uint og_num, ORDER *order, ORDER *group,
@@ -1460,11 +1471,8 @@ public:
{
return (unit->item && unit->item->is_in_predicate());
}
int print_explain(select_result_sink *result, uint8 explain_flags,
bool on_the_fly,
bool need_tmp_table, bool need_order,
bool distinct,const char *message);
int save_qpf(QPF_query *output, bool need_tmp_table, bool need_order,
bool distinct, const char *message);
private:
/**
TRUE if the query contains an aggregate function but has no GROUP
@@ -1834,6 +1842,28 @@ void push_index_cond(JOIN_TAB *tab, uint keyno);
#define OPT_LINK_EQUAL_FIELDS 1
/* EXPLAIN-related utility functions */
int print_explain_message_line(select_result_sink *result,
uint8 options,
uint select_number,
const char *select_type,
const char *message);
void explain_append_mrr_info(QUICK_RANGE_SELECT *quick, String *res);
int print_explain_row(select_result_sink *result,
uint8 options,
uint select_number,
const char *select_type,
const char *table_name,
//const char *partitions, (todo)
enum join_type jtype,
const char *possible_keys,
const char *index,
const char *key_len,
const char *ref,
ha_rows rows,
const char *extra);
void make_possible_keys_line(TABLE *table, key_map possible_keys, String *line);
/****************************************************************************
Temporary table support for SQL Runtime
***************************************************************************/