#70 [QA Bug]orderby_num() doesn't work,when query statement like this 'select a,orderby_num() from t1 group by a order by a', csql crashed

[Jira Trac]

[Repro Steps]
1. on node1:
{noformat}
csql create global table t1 (a int) partition by hash(a) partitions 3 on node 'node1','node2','node3';
csql ;x

Current transaction has been committed.

1 command(s) successfully processed.
csql select a ,orderby_num() from t1 group by a order by a
csql ;x
Segmentation fault (core dumped)
[cluster@qa0 ~]$
{noformat}