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Fix for BUG#8371: wrong rec_per_key value for hash index on temporary table

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mysql-test/r/heap_hash.result:
  Testcase for BUG#8371: wrong rec_per_key value for hash index on temporary table
mysql-test/t/heap_hash.test:
  Testcase for BUG#8371: wrong rec_per_key value for hash index on temporary table
sql/ha_heap.cc:
  Fix for BUG#8371: wrong rec_per_key value for hash index on temporary table:
  Don't assume that table->rec_per_key==NULL if table->tmp_table != NO_TMP_TABLE, 
  this is not true for tables created with "CREATE TEMPORARY TABLE" (while it holds
  for temporary tables created during query execution)
sql/sql_select.cc:
  Initialize rec_per_key for all keys in temporary table.
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unknown
2005-02-08 23:44:51 +03:00
parent ffe417fdde
commit 37e2873fe3
4 changed files with 24 additions and 6 deletions
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mysql-test/r/heap_hash.result
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@ -355,3 +355,13 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref heap_idx heap_idx 20 const 7 Using where
1 SIMPLE t3 ref a a 40 func,const 6 Using where
drop table t1, t2, t3;
create temporary table t1 ( a int, index (a) ) engine=memory;
insert into t1 values (1),(2),(3),(4),(5);
select a from t1 where a in (1,3);
a
1
3
explain select a from t1 where a in (1,3);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 5 NULL 2 Using where
drop table t1;