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Bug#30573: Ordered range scan over partitioned tables returns some rows twice

Browse Source 
and
Bug#33555: Group By Query does not correctly aggregate partitions

Backport of bug-33257 which is the same bug.

read_range_*() calls was not passed to the partition handlers,
but was translated to index_read/next family calls.
Resulting in duplicates rows and wrong aggregations.

mysql-test/r/partition_range.result:
  Bug#30573: Ordered range scan over partitioned tables returns some rows twice
  
  Updated result file
mysql-test/t/partition_range.test:
  Bug#30573: Ordered range scan over partitioned tables returns some rows twice
  
  Re-enabled the test
sql/ha_partition.cc:
  Bug#30573: Ordered range scan over partitioned tables returns some rows twice
  
  backport of bug-33257, correct handling of read_range_* calls,
  without converting them to index_read/next calls
sql/ha_partition.h:
  Bug#30573: Ordered range scan over partitioned tables returns some rows twice
  
  backport of bug-33257, correct handling of read_range_* calls,
  without converting them to index_read/next calls
This commit is contained in:
Mattias Jonsson
2008-09-18 22:49:34 +03:00
parent 14ce62ffbb
commit 3e1d88d188
4 changed files with 157 additions and 88 deletions
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36
mysql-test/t/partition_range.test
View File

@ -807,24 +807,24 @@ DROP TABLE t1;
#
# BUG#30573: get wrong result with "group by" on PARTITIONed table
#
#create table t1 (a int);
#insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
#CREATE TABLE t2 (
# defid int(10) unsigned NOT NULL,
# day int(10) unsigned NOT NULL,
# count int(10) unsigned NOT NULL,
# filler char(200),
# KEY (defid,day)
#)
#PARTITION BY RANGE (day) (
# PARTITION p7 VALUES LESS THAN (20070401) ,
# PARTITION p8 VALUES LESS THAN (20070501));
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
CREATE TABLE t2 (
defid int(10) unsigned NOT NULL,
day int(10) unsigned NOT NULL,
count int(10) unsigned NOT NULL,
filler char(200),
KEY (defid,day)
)
PARTITION BY RANGE (day) (
PARTITION p7 VALUES LESS THAN (20070401) ,
PARTITION p8 VALUES LESS THAN (20070501));
#insert into t2 select 20, 20070311, 1, 'filler' from t1 A, t1 B;
#insert into t2 select 20, 20070411, 1, 'filler' from t1 A, t1 B;
#insert into t2 values(52, 20070321, 123, 'filler') ;
#insert into t2 values(52, 20070322, 456, 'filler') ;
insert into t2 select 20, 20070311, 1, 'filler' from t1 A, t1 B;
insert into t2 select 20, 20070411, 1, 'filler' from t1 A, t1 B;
insert into t2 values(52, 20070321, 123, 'filler') ;
insert into t2 values(52, 20070322, 456, 'filler') ;
#select sum(count) from t2 ch where ch.defid in (50,52) and ch.day between 20070320 and 20070401 group by defid;
#drop table t1, t2;
select sum(count) from t2 ch where ch.defid in (50,52) and ch.day between 20070320 and 20070401 group by defid;
drop table t1, t2;