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sql/sql_select.cc:
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2005-10-13 19:31:09 +05:00
parent 8b6ba46c2c 2e887f794a
commit 2a0183b54d
3 changed files with 131 additions and 1 deletions
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sql/sql_select.cc
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@ -4135,7 +4135,7 @@ eq_ref_table(JOIN *join, ORDER *start_order, JOIN_TAB *tab)
tab->cached_eq_ref_table=1;
if (tab->type == JT_CONST) // We can skip const tables
return (tab->eq_ref_table=1); /* purecov: inspected */
if (tab->type != JT_EQ_REF)
if (tab->type != JT_EQ_REF || tab->table->maybe_null)
return (tab->eq_ref_table=0); // We must use this
Item **ref_item=tab->ref.items;
Item **end=ref_item+tab->ref.key_parts;