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Merge with 4.1
BitKeeper/etc/ignore: auto-union client/mysqltest.c: Auto merged extra/my_print_defaults.c: Auto merged extra/perror.c: Auto merged extra/resolve_stack_dump.c: Auto merged include/help_end.h: Auto merged include/help_start.h: Auto merged myisam/myisamlog.c: Auto merged mysql-test/r/group_by.result: Auto merged mysql-test/r/heap_hash.result: Auto merged BitKeeper/deleted/.del-pack_isam.c~43801f0df7504834: Auto merged mysql-test/r/subselect.result: Auto merged mysql-test/r/user_var.result: Auto merged mysql-test/t/subselect.test: Auto merged ndb/src/kernel/vm/FastScheduler.cpp: Auto merged netware/mysql_test_run.c: Auto merged sql/item.cc: Auto merged sql/item.h: Auto merged sql/mysqld.cc: Auto merged sql/sql_list.h: Auto merged sql/sql_select.cc: Auto merged netware/BUILD/nwbootstrap: merge: keep local scripts/make_binary_distribution.sh: merge: keep local sql/ha_heap.cc: Trivial merge sql/ha_innodb.cc: Auto merge (Code already existed in 5.0) sql/item_cmpfunc.cc: Simple merge sql/item_func.cc: Simple merge sql/item_row.cc: Simple merge sql/item_strfunc.cc: Simple merge sql/item_subselect.cc: Merge with sanjas optimzation patch, but keep old code withing ifdef as a reference until this is fixed
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@ -355,3 +355,13 @@ id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t3 ref a a 44 const,const 6 Using where
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1 SIMPLE t1 ref heap_idx heap_idx 22 const 7 Using where
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drop table t1, t2, t3;
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create temporary table t1 ( a int, index (a) ) engine=memory;
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insert into t1 values (1),(2),(3),(4),(5);
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select a from t1 where a in (1,3);
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a
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1
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3
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explain select a from t1 where a in (1,3);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 range a a 5 NULL 2 Using where
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drop table t1;
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