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https://issues.apache.org/jira/browse/CASSANDRA-7740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Stupp updated CASSANDRA-7740:
------------------------------------
Attachment: 7740.txt
New patch with just the {{Cql.g}} and {{cql3handling.py}} changes.
No C* code changes necessary.
> Parsing of UDF body is broken
> -----------------------------
>
> Key: CASSANDRA-7740
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7740
> Project: Cassandra
> Issue Type: Bug
> Reporter: Sylvain Lebresne
> Assignee: Robert Stupp
> Fix For: 3.0
>
> Attachments: 7740.txt
>
>
> The parsing of function body introduced by CASSANDRA-7395 is somewhat broken.
> It blindly parse everything up to {{END_BODY}}, which as 2 problems:
> # it parse function body as if it was part of the CQL syntax, so anything
> that don't happen to be a valid CQL token won't even parse.
> # something like
> {noformat}
> CREATE FUNCTION foo() RETURNS text LANGUAGE JAVA BODY return "END_BODY";
> END_BODY;
> {noformat}
> will not parse correctly.
> I don't think we can accept random syntax like that. A better solution (which
> is the one Postgresql uses) is to pass the function body as a normal string.
> And in fact I'd be in favor of reusing Postgresql syntax (because why not),
> that is to have:
> {noformat}
> CREATE FUNCTION foo() RETURNS text LANGUAGE JAVA AS 'return "END_BODY"';
> {noformat}
> One minor annoyance might be, for certain languages, the necessity to double
> every quote inside the string. But in a separate ticket we could introduce
> Postregsql solution of adding an [alternate syntax for string
> constants|http://www.postgresql.org/docs/9.1/static/sql-syntax-lexical.html#SQL-SYNTAX-DOLLAR-QUOTING].
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