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System Versioning pre0.12

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Merge remote-tracking branch 'origin/archive/2017-10-17' into 10.3
This commit is contained in:
Aleksey Midenkov
2017-11-07 00:37:49 +03:00
parent 835cbbcc7b ce66d5b2a5
commit d8d7251019
354 changed files with 20615 additions and 1638 deletions
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61
sql/sql_delete.cc
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@ -217,6 +217,13 @@ void Update_plan::save_explain_data_intern(MEM_ROOT *mem_root,
static bool record_should_be_deleted(THD *thd, TABLE *table, SQL_SELECT *sel,
Explain_delete *explain)
{
if (table->versioned())
{
bool row_is_alive= table->vers_end_field()->is_max();
if (table->pos_in_table_list->vers_conditions ? row_is_alive : !row_is_alive)
return false;
}
explain->tracker.on_record_read();
thd->inc_examined_row_count(1);
if (table->vfield)
@ -230,6 +237,18 @@ static bool record_should_be_deleted(THD *thd, TABLE *table, SQL_SELECT *sel,
}
inline
int TABLE::delete_row()
{
if (!versioned_by_sql() || !vers_end_field()->is_max())
return file->ha_delete_row(record[0]);
store_record(this, record[1]);
vers_end_field()->set_time();
return file->ha_update_row(record[1], record[0]);
}
/**
Implement DELETE SQL word.
@ -273,6 +292,23 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
if (open_and_lock_tables(thd, table_list, TRUE, 0))
DBUG_RETURN(TRUE);
bool truncate_history= table_list->vers_conditions;
if (truncate_history)
{
TABLE *table= table_list->table;
DBUG_ASSERT(table);
DBUG_ASSERT(!conds);
if (vers_setup_select(thd, table_list, &conds, select_lex))
DBUG_RETURN(TRUE);
// trx_sees() in InnoDB reads sys_trx_start
if (!table->versioned_by_sql()) {
DBUG_ASSERT(table_list->vers_conditions.type == FOR_SYSTEM_TIME_BEFORE);
bitmap_set_bit(table->read_set, table->vers_end_field()->field_index);
}
}
if (mysql_handle_list_of_derived(thd->lex, table_list, DT_MERGE_FOR_INSERT))
DBUG_RETURN(TRUE);
if (mysql_handle_list_of_derived(thd->lex, table_list, DT_PREPARE))
@ -365,7 +401,8 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
*/
if (!with_select && !using_limit && const_cond_result &&
(!thd->is_current_stmt_binlog_format_row() &&
!(table->triggers && table->triggers->has_delete_triggers())))
!(table->triggers && table->triggers->has_delete_triggers()))
&& !table->versioned_by_sql())
{
/* Update the table->file->stats.records number */
table->file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK);
@ -620,7 +657,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
delete_record= record_should_be_deleted(thd, table, select, explain);
if (delete_record)
{
if (table->triggers &&
if (!truncate_history && table->triggers &&
table->triggers->process_triggers(thd, TRG_EVENT_DELETE,
TRG_ACTION_BEFORE, FALSE))
{
@ -634,10 +671,11 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
break;
}
if (!(error= table->file->ha_delete_row(table->record[0])))
error= table->delete_row();
if (!error)
{
deleted++;
if (table->triggers &&
if (!truncate_history && table->triggers &&
table->triggers->process_triggers(thd, TRG_EVENT_DELETE,
TRG_ACTION_AFTER, FALSE))
{
@ -723,6 +761,8 @@ cleanup:
else
errcode= query_error_code(thd, killed_status == NOT_KILLED);
ScopedStatementReplication scoped_stmt_rpl(
table->versioned_by_engine() ? thd : NULL);
/*
[binlog]: If 'handler::delete_all_rows()' was called and the
storage engine does not inject the rows itself, we replicate
@ -1104,6 +1144,11 @@ int multi_delete::send_data(List<Item> &values)
if (table->status & (STATUS_NULL_ROW | STATUS_DELETED))
continue;
if (table->versioned() && !table->vers_end_field()->is_max())
{
continue;
}
table->file->position(table->record[0]);
found++;
@ -1116,7 +1161,9 @@ int multi_delete::send_data(List<Item> &values)
TRG_ACTION_BEFORE, FALSE))
DBUG_RETURN(1);
table->status|= STATUS_DELETED;
if (!(error=table->file->ha_delete_row(table->record[0])))
error= table->delete_row();
if (!error)
{
deleted++;
if (!table->file->has_transactions())
@ -1295,8 +1342,8 @@ int multi_delete::do_table_deletes(TABLE *table, SORT_INFO *sort_info,
local_error= 1;
break;
}
local_error= table->file->ha_delete_row(table->record[0]);
local_error= table->delete_row();
if (local_error && !ignore)
{
table->file->print_error(local_error, MYF(0));