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Viewing changes to drizzled/sql_select.h

  • Committer: Brian Aker
  • Date: 2010-11-08 18:24:58 UTC
  • mto: (1921.1.1 trunk)
  • mto: This revision was merged to the branch mainline in revision 1916.
  • Revision ID: brian@tangent.org-20101108182458-twv4hyix43ojno80
Merge in changes such that lock is now broken out into its own directory.

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drizzled/sql_select.h
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#define KEY_OPTIMIZE_EXISTS             1
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#define KEY_OPTIMIZE_REF_OR_NULL        2
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class JOIN;
 
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class Join;
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enum_nested_loop_state sub_select_cache(JOIN *join, JoinTable *join_tab, bool end_of_records);
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enum_nested_loop_state sub_select(JOIN *join,JoinTable *join_tab, bool end_of_records);
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enum_nested_loop_state end_send_group(JOIN *join, JoinTable *join_tab, bool end_of_records);
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enum_nested_loop_state end_write_group(JOIN *join, JoinTable *join_tab, bool end_of_records);
 
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enum_nested_loop_state sub_select_cache(Join *join, JoinTable *join_tab, bool end_of_records);
 
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enum_nested_loop_state sub_select(Join *join,JoinTable *join_tab, bool end_of_records);
 
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enum_nested_loop_state end_send_group(Join *join, JoinTable *join_tab, bool end_of_records);
 
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enum_nested_loop_state end_write_group(Join *join, JoinTable *join_tab, bool end_of_records);
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typedef struct st_rollup
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{
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  COND_CMP(Item *a,Item_func *b) :and_level(a),cmp_func(b) {}
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};
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void TEST_join(JOIN *join);
 
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void TEST_join(Join *join);
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/* Extern functions in sql_select.cc */
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bool store_val_in_field(Field *field, Item *val, enum_check_fields check_flag);
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Table *create_tmp_table(Session *session,Tmp_Table_Param *param,List<Item> &fields,
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                        order_st *group, bool distinct, bool save_sum_fields,
 
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                        Order *group, bool distinct, bool save_sum_fields,
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                        uint64_t select_options, ha_rows rows_limit,
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                        const char* alias);
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void free_tmp_table(Session *session, Table *entry);
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void count_field_types(Select_Lex *select_lex, Tmp_Table_Param *param,
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                       List<Item> &fields, bool reset_with_sum_func);
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bool setup_copy_fields(Session *session, Tmp_Table_Param *param,
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                                   const char *name, Table *table,
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                                   Item_field *item, uint32_t convert_blob_length);
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bool test_if_ref(Item_field *left_item,Item *right_item);
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COND *optimize_cond(JOIN *join, COND *conds, List<TableList> *join_list, Item::cond_result *cond_value);
 
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COND *optimize_cond(Join *join, COND *conds, List<TableList> *join_list, Item::cond_result *cond_value);
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COND *make_cond_for_table(COND *cond,table_map table, table_map used_table, bool exclude_expensive_cond);
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COND* substitute_for_best_equal_field(COND *cond, COND_EQUAL *cond_equal, void *table_join_idx);
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bool list_contains_unique_index(Table *table, bool (*find_func) (Field *, void *), void *data);
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bool find_field_in_order_list (Field *field, void *data);
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bool find_field_in_item_list (Field *field, void *data);
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bool test_if_skip_sort_order(JoinTable *tab,order_st *order,ha_rows select_limit, bool no_changes, const key_map *map);
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order_st *create_distinct_group(Session *session,
 
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bool test_if_skip_sort_order(JoinTable *tab,Order *order,ha_rows select_limit, bool no_changes, const key_map *map);
 
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Order *create_distinct_group(Session *session,
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                                Item **ref_pointer_array,
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                                order_st *order_list,
 
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                                Order *order_list,
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                                List<Item> &fields,
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                                List<Item> &,
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                                bool *all_order_by_fields_used);
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                                                List<Item> &res_all_fields,
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                                                uint32_t elements,
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                              List<Item> &all_fields);
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int do_select(JOIN *join, List<Item> *fields, Table *tmp_table);
 
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int do_select(Join *join, List<Item> *fields, Table *tmp_table);
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bool const_expression_in_where(COND *conds,Item *item, Item **comp_item);
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int create_sort_index(Session *session, JOIN *join, order_st *order, ha_rows filesort_limit, ha_rows select_limit, bool is_order_by);
 
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int create_sort_index(Session *session, Join *join, Order *order, ha_rows filesort_limit, ha_rows select_limit, bool is_order_by);
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void save_index_subquery_explain_info(JoinTable *join_tab, Item* where);
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Item *remove_additional_cond(Item* conds);
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bool setup_sum_funcs(Session *session, Item_sum **func_ptr);
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                               List<Item> &res_all_fields,
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                               uint32_t elements,
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                                                 List<Item> &all_fields);
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bool change_group_ref(Session *session, Item_func *expr, order_st *group_list, bool *changed);
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bool check_interleaving_with_nj(JoinTable *last, JoinTable *next);
 
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bool change_group_ref(Session *session, Item_func *expr, Order *group_list, bool *changed);
 
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bool check_interleaving_with_nj(JoinTable *next);
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int join_read_const_table(JoinTable *tab, optimizer::Position *pos);
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int join_read_system(JoinTable *tab);
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int join_read_key(JoinTable *tab);
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int join_read_always_key(JoinTable *tab);
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int join_read_last_key(JoinTable *tab);
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int join_no_more_records(READ_RECORD *info);
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int join_read_next(READ_RECORD *info);
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int join_read_next_different(READ_RECORD *info);
 
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int join_no_more_records(ReadRecord *info);
 
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int join_read_next(ReadRecord *info);
 
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int join_read_next_different(ReadRecord *info);
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int join_init_quick_read_record(JoinTable *tab);
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int init_read_record_seq(JoinTable *tab);
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int test_if_quick_select(JoinTable *tab);
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int join_init_read_record(JoinTable *tab);
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int join_read_first(JoinTable *tab);
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int join_read_next_same(READ_RECORD *info);
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int join_read_next_same_diff(READ_RECORD *info);
 
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int join_read_next_same(ReadRecord *info);
 
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int join_read_next_same_diff(ReadRecord *info);
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int join_read_last(JoinTable *tab);
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int join_read_prev_same(READ_RECORD *info);
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int join_read_prev(READ_RECORD *info);
 
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int join_read_prev_same(ReadRecord *info);
 
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int join_read_prev(ReadRecord *info);
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int join_read_always_key_or_null(JoinTable *tab);
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int join_read_next_same_or_null(READ_RECORD *info);
 
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int join_read_next_same_or_null(ReadRecord *info);
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void calc_used_field_length(Session *, JoinTable *join_tab);
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StoredKey *get_store_key(Session *session, 
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                         optimizer::KeyUse *keyuse,
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                         table_map used_tables,
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                         KEY_PART_INFO *key_part,
 
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                         KeyPartInfo *key_part,
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                         unsigned char *key_buff,
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                         uint32_t maybe_null);
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int join_tab_cmp(const void* ptr1, const void* ptr2);
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int join_tab_cmp_straight(const void* ptr1, const void* ptr2);
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void push_index_cond(JoinTable *tab, uint32_t keyno, bool other_tbls_ok);
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void add_not_null_conds(JOIN *join);
 
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void add_not_null_conds(Join *join);
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uint32_t max_part_bit(key_part_map bits);
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COND *add_found_match_trig_cond(JoinTable *tab, COND *cond, JoinTable *root_tab);
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order_st *create_distinct_group(Session *session,
 
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Order *create_distinct_group(Session *session,
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                                Item **ref_pointer_array,
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                                order_st *order,
 
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                                Order *order,
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                                List<Item> &fields,
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                                List<Item> &all_fields,
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                                bool *all_order_by_fields_used);
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bool eq_ref_table(JOIN *join, order_st *start_order, JoinTable *tab);
 
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bool eq_ref_table(Join *join, Order *start_order, JoinTable *tab);
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int remove_dup_with_compare(Session *session, Table *table, Field **first_field, uint32_t offset, Item *having);
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int remove_dup_with_hash_index(Session *session, 
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                               Table *table,
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                         Select_Lex *select_lex,
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                         std::vector<optimizer::SargableParam> &sargables);
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ha_rows get_quick_record_count(Session *session, optimizer::SqlSelect *select, Table *table, const key_map *keys,ha_rows limit);
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void optimize_keyuse(JOIN *join, DYNAMIC_ARRAY *keyuse_array);
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void add_group_and_distinct_keys(JOIN *join, JoinTable *join_tab);
 
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void optimize_keyuse(Join *join, DYNAMIC_ARRAY *keyuse_array);
 
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void add_group_and_distinct_keys(Join *join, JoinTable *join_tab);
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void read_cached_record(JoinTable *tab);
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bool mysql_select(Session *session, Item ***rref_pointer_array,
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                  TableList *tables, uint32_t wild_num,  List<Item> &list,
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                  COND *conds, uint32_t og_num, order_st *order, order_st *group,
 
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                  COND *conds, uint32_t og_num, Order *order, Order *group,
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                  Item *having, uint64_t select_type,
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                  select_result *result, Select_Lex_Unit *unit,
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                  Select_Lex *select_lex);
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// Create list for using with tempory table
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void init_tmptable_sum_functions(Item_sum **func);
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void update_tmptable_sum_func(Item_sum **func,Table *tmp_table);
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bool only_eq_ref_tables(JOIN *join, order_st *order, table_map tables);
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bool create_ref_for_key(JOIN *join, JoinTable *j, 
 
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bool only_eq_ref_tables(Join *join, Order *order, table_map tables);
 
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bool create_ref_for_key(Join *join, JoinTable *j, 
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                        optimizer::KeyUse *org_keyuse, 
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                        table_map used_tables);
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