Bug #26527 LOAD DATA INFILE extremely slow with partitioned table

mysql_load calls hander::start_bulk_insert(0) to prepare caches
for big inserts. As ha_partition didn't allow these caches
for underlaying tables, the inserts were much slower
parent bcc5499b
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......@@ -2865,12 +2865,7 @@ void ha_partition::start_bulk_insert(ha_rows rows)
handler **file;
DBUG_ENTER("ha_partition::start_bulk_insert");
if (!rows)
{
/* Avoid allocation big caches in all underlaying handlers */
DBUG_VOID_RETURN;
}
rows= rows/m_tot_parts + 1;
rows= rows ? rows/m_tot_parts + 1 : 0;
file= m_file;
do
{
......
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