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MDEV#7383: engine-independent-stats column_stats has limited values for max/min values

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Patch from Daniel Black:
- Change the charset of mysql.column_stats.{min_value, max_value} from
  utf8_bin varchar to varbinary
- Adjust the code that saves/reads the data accordingly.
- Also provide upgrade statement in mysql_system_tables_fix.sql
This commit is contained in:
Sergei Petrunia
2015-11-09 17:58:35 +03:00
parent 1694d81399
commit 9f862ce026
5 changed files with 46 additions and 9 deletions
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scripts/mysql_system_tables_fix.sql
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@@ -711,3 +711,5 @@ flush privileges;
ALTER TABLE help_category MODIFY url TEXT NOT NULL;
ALTER TABLE help_topic MODIFY url TEXT NOT NULL;
# MDEV-7383 - varbinary on mix/max of column_stats
alter table column_stats modify min_value varbinary(255) DEFAULT NULL, modify max_value varbinary(255) DEFAULT NULL;