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Code Activity

New status variables: Rows_tmp_read, Handler_tmp_update and Handler_tmp_write

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Split status variable Rows_read to Rows_read and Rows_tmp_read so that one can see how much real data is read.
Same was done with with Handler_update and Handler_write.
Fixed bug in MEMORY tables where some variables was counted twice.
Added new internal handler call 'ha_close()' to have one place to gather statistics.
Fixed bug where thd->open_options was set to wrong value when doing admin_recreate_table()


mysql-test/r/status.result:
  Updated test results and added new tests
mysql-test/r/status_user.result:
  Udated test results
mysql-test/t/status.test:
  Added new test for temporary table status variables
sql/ha_partition.cc:
  Changed to call ha_close() instead of close()
sql/handler.cc:
  Added internal_tmp_table variable for easy checking of temporary tables.
  Added new internal handler call 'ha_close()' to have one place to gather statistics.
  Gather statistics for internal temporary tables.
sql/handler.h:
  Added handler variables internal_tmp_table, rows_tmp_read.
  Split function update_index_statistics() to two.
  Added ha_update_tmp_row() for faster tmp table handling with more statistics.
sql/item_sum.cc:
  ha_write_row() -> ha_write_tmp_row()
sql/multi_range_read.cc:
  close() -> ha_close()
sql/mysqld.cc:
  New status variables: Rows_tmp_read, Handler_tmp_update and Handler_tmp_write
sql/opt_range.cc:
  close() -> ha_close()
sql/sql_base.cc:
  close() -> ha_close()
sql/sql_class.cc:
  Added handling of rows_tmp_read
sql/sql_class.h:
  Added new satistics variables.
  rows_read++  ->  update_rows_read() to be able to correctly count reads to internal temp tables.
  Added handler::ha_update_tmp_row()
sql/sql_connect.cc:
  Added comment
sql/sql_expression_cache.cc:
  ha_write_row() -> ha_write_tmp_row()
sql/sql_select.cc:
  close() -> ha_close()
  ha_update_row() -> ha_update_tmp_row()
sql/sql_show.cc:
  ha_write_row() -> ha_write_tmp_row()
sql/sql_table.cc:
  Fixed bug where thd->open_options was set to wrong value when doing admin_recreate_table()
sql/sql_union.cc:
  ha_write_row() -> ha_write_tmp_row()
sql/sql_update.cc:
  ha_write_row() -> ha_write_tmp_row()
sql/table.cc:
  close() -> ha_close()
storage/heap/ha_heap.cc:
  Removed double counting of statistic variables.
  close -> ha_close() to get tmp table statistics.
storage/maria/ha_maria.cc:
  close -> ha_close() to get tmp table statistics.
This commit is contained in:
Michael Widenius
2011-06-27 19:07:24 +03:00
parent a6542a13ab
commit ba9a890f0c
23 changed files with 166 additions and 57 deletions
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8
sql/sql_table.cc
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@@ -4681,6 +4681,7 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
int result_code;
bool need_repair_or_alter= 0;
DBUG_ENTER("mysql_admin_table");
DBUG_PRINT("enter", ("extra_open_options: %u", extra_open_options));
if (end_active_trans(thd))
DBUG_RETURN(1);
@@ -4705,9 +4706,7 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
bool fatal_error=0;
DBUG_PRINT("admin", ("table: '%s'.'%s'", table->db, table->table_name));
DBUG_PRINT("admin", ("extra_open_options: %u", extra_open_options));
strxmov(table_name, db, ".", table->table_name, NullS);
thd->open_options|= extra_open_options;
table->lock_type= lock_type;
/* open only one table from local list of command */
{
@@ -4734,12 +4733,13 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
lex->sql_command == SQLCOM_ANALYZE ||
lex->sql_command == SQLCOM_OPTIMIZE)
thd->prepare_derived_at_open= TRUE;
thd->open_options|= extra_open_options;
open_and_lock_tables(thd, table);
thd->open_options&= ~extra_open_options;
thd->prepare_derived_at_open= FALSE;
thd->no_warnings_for_error= 0;
table->next_global= save_next_global;
table->next_local= save_next_local;
thd->open_options&= ~extra_open_options;
#ifdef WITH_PARTITION_STORAGE_ENGINE
if (table->table)
{
@@ -4923,7 +4923,7 @@ static bool mysql_admin_table(THD* thd, TABLE_LIST* tables,
/* We use extra_open_options to be able to open crashed tables */
thd->open_options|= extra_open_options;
result_code= admin_recreate_table(thd, table);
thd->open_options= ~extra_open_options;
thd->open_options&= ~extra_open_options;
goto send_result;
}
if (check_old_types || check_for_upgrade)