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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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4
sql/opt_histogram_json.cc
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@@ -696,6 +696,10 @@ err:
ER_THD(thd, ER_JSON_HISTOGRAM_PARSE_FAILED),
db_name, table_name,
err, (je.s.c_str - (const uchar*)hist_data));
sql_print_error(ER_THD(thd, ER_JSON_HISTOGRAM_PARSE_FAILED),
db_name, table_name, err,
(je.s.c_str - (const uchar*)hist_data));
DBUG_RETURN(true);
}