Support combined edge in match

The following grammer is not supported for now:

```plaintext
ym_age-# SELECT * FROM cypher('intellid', $$
ym_age$# MATCH p= (n1:Company)-[:Holder|:Branch]-()
ym_age$# where n1.name='Company_1'
ym_age$# RETURN p
ym_age$# $$) AS (p agtype)
ym_age-#
ym_age-# ;
ERROR: syntax error at or near "SELECT"
LINE 6: SELECT * FROM cypher('intellid', $$
^
```

The reason why it's not implemented yet?