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5.3 merge

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This commit is contained in:
Sergei Golubchik
2012-01-13 15:50:02 +01:00
parent 8c2bcdf85f 6ca4ca7d37
commit 4f435bddfd
750 changed files with 17402 additions and 7153 deletions
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22
sql/opt_subselect.h
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@ -10,6 +10,8 @@ int check_and_do_in_subquery_rewrites(JOIN *join);
bool convert_join_subqueries_to_semijoins(JOIN *join);
int pull_out_semijoin_tables(JOIN *join);
bool optimize_semijoin_nests(JOIN *join, table_map all_table_map);
bool setup_jtbm_semi_joins(JOIN *join, List<TABLE_LIST> *join_list,
Item **join_where);
// used by Loose_scan_opt
ulonglong get_bound_sj_equalities(TABLE_LIST *sj_nest,
@ -40,7 +42,6 @@ ulonglong get_bound_sj_equalities(TABLE_LIST *sj_nest,
class Loose_scan_opt
{
public:
/* All methods must check this before doing anything else */
bool try_loosescan;
@ -71,6 +72,7 @@ public:
uint best_max_loose_keypart;
public:
Loose_scan_opt():
try_loosescan(FALSE),
bound_sj_equalities(0),
@ -263,8 +265,8 @@ public:
{
pos->records_read= best_loose_scan_records;
pos->key= best_loose_scan_start_key;
pos->loosescan_key= best_loose_scan_key;
pos->loosescan_parts= best_max_loose_keypart + 1;
pos->loosescan_picker.loosescan_key= best_loose_scan_key;
pos->loosescan_picker.loosescan_parts= best_max_loose_keypart + 1;
pos->use_join_buffer= FALSE;
pos->table= tab;
// todo need ref_depend_map ?
@ -277,8 +279,7 @@ public:
};
void advance_sj_state(JOIN *join, const table_map remaining_tables,
const JOIN_TAB *new_join_tab, uint idx,
void advance_sj_state(JOIN *join, const table_map remaining_tables, uint idx,
double *current_record_count, double *current_read_time,
POSITION *loose_scan_pos);
void restore_prev_sj_state(const table_map remaining_tables,
@ -289,10 +290,6 @@ void fix_semijoin_strategies_for_picked_join_order(JOIN *join);
bool setup_sj_materialization_part1(JOIN_TAB *sjm_tab);
bool setup_sj_materialization_part2(JOIN_TAB *sjm_tab);
TABLE *create_duplicate_weedout_tmp_table(THD *thd, uint uniq_tuple_length_arg,
SJ_TMP_TABLE *sjtbl);
int do_sj_reset(SJ_TMP_TABLE *sj_tbl);
int do_sj_dups_weedout(THD *thd, SJ_TMP_TABLE *sjtbl);
/*
Temporary table used by semi-join DuplicateElimination strategy
@ -359,8 +356,11 @@ public:
ENGINE_COLUMNDEF *start_recinfo;
ENGINE_COLUMNDEF *recinfo;
/* Pointer to next table (next->start_idx > this->end_idx) */
SJ_TMP_TABLE *next;
SJ_TMP_TABLE *next_flush_table;
int sj_weedout_delete_rows();
int sj_weedout_check_row(THD *thd);
bool create_sj_weedout_tmp_table(THD *thd);
};
int setup_semijoin_dups_elimination(JOIN *join, ulonglong options,