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cleanup: move checksum code to handler class

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make live checksum to be returned in handler::info(),
and slow table-scan checksum to be calculated in handler::checksum().

part of
MDEV-16249 CHECKSUM TABLE for a spider table is not parallel and saves all data in memory in the spider head by default
This commit is contained in:
Sergei Golubchik
2019-05-02 13:09:27 +02:00
parent 651a43e0a0
commit ffb83ba650
10 changed files with 121 additions and 143 deletions
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30
sql/ha_partition.cc
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@@ -8202,8 +8202,9 @@ int ha_partition::info(uint flag)
stats.deleted= 0;
stats.data_file_length= 0;
stats.index_file_length= 0;
stats.check_time= 0;
stats.delete_length= 0;
stats.check_time= 0;
stats.checksum= 0;
for (i= bitmap_get_first_set(&m_part_info->read_partitions);
i < m_tot_parts;
i= bitmap_get_next_set(&m_part_info->read_partitions, i))
@@ -8217,6 +8218,7 @@ int ha_partition::info(uint flag)
stats.delete_length+= file->stats.delete_length;
if (file->stats.check_time > stats.check_time)
stats.check_time= file->stats.check_time;
stats.checksum+= file->stats.checksum;
}
if (stats.records && stats.records < 2 &&
!(m_file[0]->ha_table_flags() & HA_STATS_RECORDS_IS_EXACT))
@@ -8372,10 +8374,7 @@ void ha_partition::get_dynamic_partition_info(PARTITION_STATS *stat_info,
stat_info->create_time= file->stats.create_time;
stat_info->update_time= file->stats.update_time;
stat_info->check_time= file->stats.check_time;
stat_info->check_sum= 0;
if (file->ha_table_flags() & (HA_HAS_OLD_CHECKSUM | HA_HAS_NEW_CHECKSUM))
stat_info->check_sum= file->checksum();
return;
stat_info->check_sum= file->stats.checksum;
}
@@ -10563,27 +10562,6 @@ void ha_partition::init_table_handle_for_HANDLER()
}
/**
Return the checksum of the table (all partitions)
*/
uint ha_partition::checksum() const
{
ha_checksum sum= 0;
DBUG_ENTER("ha_partition::checksum");
if ((table_flags() & (HA_HAS_OLD_CHECKSUM | HA_HAS_NEW_CHECKSUM)))
{
handler **file= m_file;
do
{
sum+= (*file)->checksum();
} while (*(++file));
}
DBUG_RETURN(sum);
}
/****************************************************************************
MODULE enable/disable indexes
****************************************************************************/