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Code Activity

Fix UNION

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New faster list iterators
Change list code to be simpler and faster
Optimize count(distinct)
New error messages for UNION
Make create_tmp_table more general to be usable by UNION


Docs/manual.texi:
  Changelog
include/mysqld_error.h:
  Add new error messages needed for UNION
mysql-test/r/union.result:
  New tests for UNION
mysql-test/t/analyse.test:
  Add missing drop table
mysql-test/t/union.test:
  new tests for UNION
sql/Makefile.am:
  Change name of sql_unions.cc to sql_union.cc
sql/item.cc:
  Use List_iterator_fast
sql/item_cmpfunc.cc:
  Use List_iterator_fast
sql/item_func.cc:
  Use List_iterator_fast
sql/item_sum.cc:
  Use List_iterator_fast
  Optimize count(distinct)
  Cleanup of indentation and comments
sql/item_sum.h:
  Optimize count(distinct)
sql/key.cc:
  Use List_iterator_fast
sql/mysql_priv.h:
  Add new option bits
sql/opt_sum.cc:
  Use List_iterator_fast
sql/share/Makefile.am:
  Add 'fix_errors' label
sql/share/czech/errmsg.txt:
  Add new error messages needed for UNION
sql/share/danish/errmsg.txt:
  Add new error messages needed for UNION
sql/share/dutch/errmsg.txt:
  Add new error messages needed for UNION
sql/share/english/errmsg.txt:
  Add new error messages needed for UNION
sql/share/estonian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/french/errmsg.txt:
  Add new error messages needed for UNION
sql/share/german/errmsg.txt:
  Add new error messages needed for UNION
sql/share/greek/errmsg.txt:
  Add new error messages needed for UNION
sql/share/hungarian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/italian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/japanese/errmsg.txt:
  Add new error messages needed for UNION
sql/share/korean/errmsg.txt:
  Add new error messages needed for UNION
sql/share/norwegian-ny/errmsg.txt:
  Add new error messages needed for UNION
sql/share/norwegian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/polish/errmsg.txt:
  Add new error messages needed for UNION
sql/share/portuguese/errmsg.txt:
  Add new error messages needed for UNION
sql/share/romanian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/russian/errmsg.txt:
  Add new error messages needed for UNION
sql/share/slovak/errmsg.txt:
  Add new error messages needed for UNION
sql/share/spanish/errmsg.txt:
  Add new error messages needed for UNION
sql/share/swedish/errmsg.txt:
  Add new error messages needed for UNION
sql/sql_analyse.cc:
  Use List_iterator_fast
sql/sql_base.cc:
  Use List_iterator_fast
  Add new argument to setup_fields
sql/sql_class.cc:
  Use List_iterator_fast
sql/sql_class.h:
  Create new class for UNION
sql/sql_handler.cc:
  Use List_iterator_fast
sql/sql_insert.cc:
  Use List_iterator_fast
sql/sql_lex.h:
  Cleanup
sql/sql_list.cc:
  Faster iteration of lists
sql/sql_list.h:
  Faster iterations of lists
sql/sql_load.cc:
  Use List_iterator_fast
sql/sql_parse.cc:
  Fix UNION code
sql/sql_select.cc:
  Use List_iterator_fast
  Make create_tmp_table more general to be usable by UNION
sql/sql_select.h:
  Changes to speed up copy_fields()
sql/sql_show.cc:
  Use List_iterator_fast
sql/sql_table.cc:
  Use List_iterator_fast
sql/sql_union.cc:
  Fix UNION code
sql/sql_update.cc:
  Use List_iterator_fast
sql/sql_yacc.yy:
  Fix UNION code
This commit is contained in:
unknown
2001-08-02 06:29:50 +03:00
parent 7c1e275715
commit 329e5f2f35
57 changed files with 798 additions and 472 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
sql/sql_class.h
View File

@ -413,6 +413,8 @@ public:
class JOIN;
void send_error(NET *net,uint sql_errno=0, const char *err=0);
class select_result :public Sql_alloc {
protected:
THD *thd;
@ -423,7 +425,10 @@ public:
virtual bool send_fields(List<Item> &list,uint flag)=0;
virtual bool send_data(List<Item> &items)=0;
virtual void initialize_tables (JOIN *join=0) {}
virtual void send_error(uint errcode,const char *err)=0;
virtual void send_error(uint errcode,const char *err)
{
::send_error(&thd->net,errcode,err);
}
virtual bool send_eof()=0;
virtual void abort() {}
};
@ -434,7 +439,6 @@ public:
select_send() {}
bool send_fields(List<Item> &list,uint flag);
bool send_data(List<Item> &items);
void send_error(uint errcode,const char *err);
bool send_eof();
};
@ -458,6 +462,7 @@ public:
bool send_eof();
};
class select_dump :public select_result {
sql_exchange *exchange;
File file;
@ -475,30 +480,31 @@ public:
void send_error(uint errcode,const char *err);
bool send_eof();
};
class select_insert :public select_result {
public:
TABLE *table;
List<Item> *fields;
uint save_time_stamp;
ulonglong last_insert_id;
COPY_INFO info;
bool unions;
uint save_time_stamp;
select_insert(TABLE *table_par,List<Item> *fields_par,enum_duplicates duplic, bool u=false)
:table(table_par),fields(fields_par), save_time_stamp(0),last_insert_id(0)
{
bzero((char*) &info,sizeof(info));
info.handle_duplicates=duplic; unions = u;
}
select_insert(TABLE *table_par,List<Item> *fields_par,enum_duplicates duplic)
:table(table_par),fields(fields_par), last_insert_id(0), save_time_stamp(0) {
bzero((char*) &info,sizeof(info));
info.handle_duplicates=duplic;
}
~select_insert();
int prepare(List<Item> &list);
bool send_fields(List<Item> &list,
uint flag) { return 0; }
bool send_fields(List<Item> &list, uint flag)
{ return 0; }
bool send_data(List<Item> &items);
void send_error(uint errcode,const char *err);
bool send_eof();
};
class select_create: public select_insert {
ORDER *group;
const char *db;
@ -513,8 +519,8 @@ public:
HA_CREATE_INFO *create_info_par,
List<create_field> &fields_par,
List<Key> &keys_par,
List<Item> &select_fields,enum_duplicates duplic, bool u=false)
:select_insert (NULL, &select_fields, duplic, u), db(db_name),
List<Item> &select_fields,enum_duplicates duplic)
:select_insert (NULL, &select_fields, duplic), db(db_name),
name(table_name), extra_fields(&fields_par),keys(&keys_par),
create_info(create_info_par),
lock(0)
@ -525,6 +531,22 @@ public:
void abort();
};
class select_union :public select_result {
public:
TABLE *table;
COPY_INFO info;
uint save_time_stamp;
select_union(TABLE *table_par);
~select_union();
int prepare(List<Item> &list);
bool send_fields(List<Item> &list, uint flag)
{ return 0; }
bool send_data(List<Item> &items);
bool send_eof();
bool flush();
};
/* Structs used when sorting */
typedef struct st_sort_field {