Function LoadOptRuleBlacklist

pkg/executor/opt_rule_blacklist.go:40–53

LoadOptRuleBlacklist loads the latest data from table mysql.opt_rule_blacklist.

(ctx context.Context, sctx sessionctx.Context)

// LoadOptRuleBlacklist loads the latest data from table mysql.opt_rule_blacklist.
func LoadOptRuleBlacklist(ctx context.Context, sctx sessionctx.Context) (err error) {
	exec := sctx.GetRestrictedSQLExecutor()
	rows, _, err := exec.ExecRestrictedSQL(ctx, nil, "select HIGH_PRIORITY name from mysql.opt_rule_blacklist")
	if err != nil {
		return err
	}
	newDisabledLogicalRules := set.NewStringSet()
	for _, row := range rows {
		name := row.GetString(0)
		newDisabledLogicalRules.Insert(name)
	}
	plannercore.DefaultDisabledLogicalRulesList.Store(newDisabledLogicalRules)
	return nil
}