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mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00

Fix UNION

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

View File

@ -78,7 +78,8 @@ check_insert_fields(THD *thd,TABLE *table,List<Item> &fields,
table_list.grant=table->grant;
thd->dupp_field=0;
if (setup_tables(&table_list) || setup_fields(thd,&table_list,fields,1,0))
if (setup_tables(&table_list) ||
setup_fields(thd,&table_list,fields,1,0,0))
return -1;
if (thd->dupp_field)
{
@ -109,7 +110,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list, List<Item> &fields,
ulonglong id;
COPY_INFO info;
TABLE *table;
List_iterator<List_item> its(values_list);
List_iterator_fast<List_item> its(values_list);
List_item *values;
char *query=thd->query;
DBUG_ENTER("mysql_insert");
@ -151,7 +152,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list, List<Item> &fields,
save_time_stamp=table->time_stamp;
values= its++;
if (check_insert_fields(thd,table,fields,*values,1) ||
setup_tables(table_list) || setup_fields(thd,table_list,*values,0,0))
setup_tables(table_list) || setup_fields(thd,table_list,*values,0,0,0))
{
table->time_stamp=save_time_stamp;
goto abort;
@ -168,7 +169,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list, List<Item> &fields,
table->time_stamp=save_time_stamp;
goto abort;
}
if (setup_fields(thd,table_list,*values,0,0))
if (setup_fields(thd,table_list,*values,0,0,0))
{
table->time_stamp=save_time_stamp;
goto abort;
@ -1237,14 +1238,14 @@ select_insert::prepare(List<Item> &values)
restore_record(table,2); // Get empty record
table->next_number_field=table->found_next_number_field;
thd->count_cuted_fields=1; /* calc cuted fields */
thd->count_cuted_fields=1; // calc cuted fields
thd->cuted_fields=0;
if (info.handle_duplicates != DUP_REPLACE)
table->file->extra(HA_EXTRA_WRITE_CACHE);
if (info.handle_duplicates == DUP_IGNORE ||
info.handle_duplicates == DUP_REPLACE)
table->file->extra(HA_EXTRA_IGNORE_DUP_KEY);
table->file->deactivate_non_unique_index((ha_rows) 0);
if (info.handle_duplicates != DUP_REPLACE)
table->file->extra(HA_EXTRA_WRITE_CACHE);
if (info.handle_duplicates == DUP_IGNORE ||
info.handle_duplicates == DUP_REPLACE)
table->file->extra(HA_EXTRA_IGNORE_DUP_KEY);
table->file->deactivate_non_unique_index((ha_rows) 0);
DBUG_RETURN(0);
}
@ -1319,8 +1320,7 @@ bool select_insert::send_eof()
thd->cuted_fields);
if (last_insert_id)
thd->insert_id(last_insert_id); // For update log
if (!unions)
::send_ok(&thd->net,info.copied,last_insert_id,buff);
::send_ok(&thd->net,info.copied,last_insert_id,buff);
mysql_update_log.write(thd,thd->query,thd->query_length);
if (mysql_bin_log.is_open())
{
@ -1390,6 +1390,7 @@ bool select_create::send_data(List<Item> &values)
extern HASH open_cache;
bool select_create::send_eof()
{
bool tmp=select_insert::send_eof();
@ -1403,8 +1404,7 @@ bool select_create::send_eof()
if (!table->tmp_table)
hash_delete(&open_cache,(byte*) table);
lock=0;
if (!unions)
table=0;
table=0;
VOID(pthread_mutex_unlock(&LOCK_open));
}
return tmp;
@ -1436,7 +1436,7 @@ void select_create::abort()
*****************************************************************************/
#ifdef __GNUC__
template class List_iterator<List_item>;
template class List_iterator_fast<List_item>;
template class I_List<delayed_insert>;
template class I_List_iterator<delayed_insert>;
template class I_List<delayed_row>;