[jira] [Commented] (METAMODEL-113) Queries ALIAS and LEFT JOIN

["Francisco Javier Cano (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/METAMODEL-113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14343105#comment-14343105 ] 

Francisco Javier Cano commented on METAMODEL-113:
-------------------------------------------------

SELECT l.name as language, COUNT(f.film_id) as films FROM language l LEFT JOIN sakila.film f USING (language_id) GROUP BY l.name
=>
SELECT l.name as language, COUNT(f.film_id) as films FROM language l LEFT JOIN sakila.film f ON l.language_id=f.language_id GROUP BY l.name;

It wortks perfect, thanks a lot (SQL syntax)
----
Regarding literal (it is not column name with digits) in select statement, I found this:

http://www.firstsql.com/tutor3.htm#exp

I would like to perform queries similar to:

{code}
mysql> SELECT "language", l.name as language, COUNT(f.film_id) as films FROM language l LEFT JOIN sakila.film f ON l.language_id=f.language_id GROUP BY l.name;
+----------+----------+-------+
| language | language | films |
+----------+----------+-------+
| language | English  |  1000 |
| language | French   |     0 |
| language | German   |     0 |
| language | Italian  |     0 |
| language | Japanese |     0 |
| language | Mandarin |     0 |
+----------+----------+-------+
{code}

But it looks like an extended release. 

Thanks,

> Queries ALIAS and LEFT JOIN
> ---------------------------
>
>                 Key: METAMODEL-113
>                 URL: https://issues.apache.org/jira/browse/METAMODEL-113
>             Project: Apache MetaModel
>          Issue Type: Bug
>    Affects Versions: 4.3.2
>            Reporter: Francisco Javier Cano
>
> DataSet:  http://dev.mysql.com/doc/sakila/en/
> Does MM support these queries? We get an error:
> ----
> {code}
> SELECT l.name as language, COUNT(f.film_id) as films FROM language l LEFT JOIN sakila.film f USING (language_id) GROUP BY l.name
> {code}
> {code}
> org.apache.metamodel.query.parser.QueryParserException: Not capable of parsing FROM token: language l LEFT JOIN sakila.film f USING (language_id). Expected parenthesis to start at first character.
> {code}
> ----
> ----
> {code}
> SELECT l.name as name, 2 as dos FROM language l
> {code}
> {code}
> org.apache.metamodel.query.parser.QueryParserException: Not capable of parsing SELECT token: 2
> {code}
> ----
> Thanks a lot,



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