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0.1: SQL-level System Versioning

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This commit is contained in:
Daniel Fiala
2016-06-19 07:38:28 +01:00
committed by Aleksey Midenkov
parent 14bdfa8541
commit be6f2d302c
115 changed files with 4055 additions and 1101 deletions
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49
sql/sql_delete.cc
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@ -343,7 +343,8 @@ 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())
{
/* Update the table->file->stats.records number */
table->file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK);
@ -559,6 +560,12 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
while (!(error=info.read_record(&info)) && !thd->killed &&
! thd->is_error())
{
if (table->versioned() &&
!table->vers_end_field()->is_max_timestamp())
{
continue;
}
explain->tracker.on_record_read();
thd->inc_examined_row_count(1);
if (table->vfield)
@ -580,7 +587,16 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
break;
}
if (!(error= table->file->ha_delete_row(table->record[0])))
if (!table->versioned())
error= table->file->ha_delete_row(table->record[0]);
else
{
store_record(table,record[1]);
table->vers_end_field()->set_time();
error= table->file->ha_update_row(table->record[1],
table->record[0]);
}
if (!error)
{
deleted++;
if (table->triggers &&
@ -1052,6 +1068,12 @@ 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_timestamp())
{
continue;
}
table->file->position(table->record[0]);
found++;
@ -1064,7 +1086,16 @@ 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])))
if (!table->versioned())
error= table->file->ha_delete_row(table->record[0]);
else
{
store_record(table,record[1]);
table->vers_end_field()->set_time();
error= table->file->ha_update_row(table->record[1],
table->record[0]);
}
if (!error)
{
deleted++;
if (!table->file->has_transactions())
@ -1243,8 +1274,16 @@ 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]);
if (!table->versioned())
local_error= table->file->ha_delete_row(table->record[0]);
else
{
store_record(table,record[1]);
table->vers_end_field()->set_time();
local_error= table->file->ha_update_row(table->record[1],
table->record[0]);
}
if (local_error && !ignore)
{
table->file->print_error(local_error, MYF(0));