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Fix for BUG#6276.
mysql-test/r/select.result: Test for BUG#6276. mysql-test/t/select.test: Test for BUG#6276. sql/sql_base.cc: Add a true ON condition for outer joins without common columns.
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@ -3851,6 +3851,11 @@ store_top_level_join_columns(THD *thd, TABLE_LIST *table_ref,
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*/
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table_ref_1->natural_join= table_ref_2->natural_join= NULL;
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/* Add a TRUE condition to outer joins that have no common columns. */
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if (table_ref_2->outer_join &&
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!table_ref_1->on_expr && !table_ref_2->on_expr)
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table_ref_2->on_expr= new Item_int((longlong) 1,1); /* Always true. */
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/* Change this table reference to become a leaf for name resolution. */
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if (left_neighbor)
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{
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