Phantom DSL does not generate the right alter CQL statement when adding several columns.

[livius-ungureanu]

If several columns are wanted to be added to an existing table using the DSL :

recipesTable.alter().add("likes",  "int").add("img", "blob")

the DSL will generate:

ALTER TABLE  recipes ADD  likes int  ADD  img  blob;

which is not CQL valid.

Note:
C* started to support multiple columns addition only starting with C* 3.6(See https://issues.apache.org/jira/browse/CASSANDRA-10411).

But even after 3.6 the new CQL would be:
ALTER TABLE recipes ADD (likes int, img blob)

Thank you in advance.

[alexflav23]

@livius-ungureanu Fixed in #888, pending release.