Hi Varun, On Sat, Feb 03, 2018 at 06:37:21PM +0530, Varun wrote: > revision-id: f4f32ab71d5c96fbec87f8b6a5c057af2bc2398b > (mariadb-10.2.5-413-gf4f32ab71d5) > parent(s): 9390ff53fc39e34976cf051ce33649f9316bb8e6 > author: Varun Gupta > committer: Varun Gupta > timestamp: 2018-02-03 18:24:49 +0530 > message: > > MDEV-9744: session optimizer_use_condition_selectivity=5 causing SQL Error > (1918): > Encountered illegal value '' when converting to DECIMAL > > The issue was that EITS data was allocated but then not read for some reason > (one being to avoid a deadlock), > then the optimizer was using these bzero'ed buffers as EITS statistics. > This should not be allowed, we should use statistcs for a table only when we > have successfully loaded/read > the stats from the statistical tables. > > --- > mysql-test/r/statistics.result | 16 ++++++++++++++++ > mysql-test/t/statistics.test | 19 +++++++++++++++++++ > sql/sql_statistics.cc | 23 ++++++++++++++++------- > 3 files changed, 51 insertions(+), 7 deletions(-) > > diff --git a/mysql-test/r/statistics.result b/mysql-test/r/statistics.result > index ffaaf09acc8..1486a8ab5e6 100644 > --- a/mysql-test/r/statistics.result > +++ b/mysql-test/r/statistics.result > @@ -1716,5 +1716,21 @@ b > > 0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.004,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.004,0.000,0.000,0.004,0.000,0.004,0.000,0.004,0.000,0.004,0.004,0.004,0.000,0.004,0.000,0.004,0.004,0.004,0.004,0.004,0.000,0.004,0.004,0.004,0.004,0.004,0.004,0.008,0.004,0.008,0.008,0.008,0.008,0.020,0.004,0.016,0.020,0.016,0.016,0.051,0.031,0.027,0.031,0.043,0.047,0.043,0.043,0.055,0.051,0.071,0.043,0.043,0.043,0.020,0.024,0.024,0.020,0.016,0.016,0.008,0.008,0.012,0.000 > DROP TABLE t1; > # > +# MDEB-9744: session optimizer_use_condition_selectivity=5 causing SQL Error > (1918): Please change to "MDEV"
> +# Encountered illegal value '' when converting to DECIMAL > +# > +set @save_optimizer_use_condition_selectivity= > @@optimizer_use_condition_selectivity; > +set optimizer_use_condition_selectivity=3, use_stat_tables=preferably; > +create table a (id int(10),cost decimal(9,2)) engine=innodb; > +ANALYZE TABLE a PERSISTENT FOR ALL; > +Table Op Msg_type Msg_text > +test.a analyze status Engine-independent statistics collected > +test.a analyze status OK > +create temporary table b (id int); > +insert into b (id) select id from a where cost > 0; > +drop table a,b; Please follow the convention and use table names t1,t2,... Ok to push after this is addressed. BR Sergei -- Sergei Petrunia, Software Developer MariaDB Corporation | Skype: sergefp | Blog: http://s.petrunia.net/blog _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp