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MDEV-26519: Improved histograms: Better error reporting, test coverage

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Also report JSON histogram load errors into error log, like it is already
done with other histogram/statistics load errors.

Add test coverage to see what happens if one upgrades but does NOT run
mysql_upgrade.
This commit is contained in:
Sergei Petrunia
2021-12-02 20:47:08 +03:00
parent a0f93f433a
commit a0916cf5a2
5 changed files with 107 additions and 0 deletions
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mysql-test/main/statistics_json.test
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@ -16,6 +16,7 @@ drop table if exists t1;
set @save_histogram_type=@@histogram_type;
set @save_histogram_size=@@histogram_size;
call mtr.add_suppression("Failed to parse histogram for table .*");
create table ten(a int primary key);
insert into ten values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);