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From "Eric Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2409) Add INSERT support to CQL
Date Mon, 04 Apr 2011 19:29:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13015562#comment-13015562
] 

Eric Evans commented on CASSANDRA-2409:
---------------------------------------

If you raise a RuntimeException from the lexer or parser, it will not be propagated down to
the client (it's swallowed and turned into an internal server error).

If you look at the revised patch, I moved the size equality test and conversion to Map into
{{UpdateStatement.getColumns()}} where an {{InvalidRequestException}} can be raised (everything
that calls {{getColumns()}} already throws {{InvalidRequestException}}. 

> Add INSERT support to CQL
> -------------------------
>
>                 Key: CASSANDRA-2409
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2409
>             Project: Cassandra
>          Issue Type: Bug
>          Components: API
>            Reporter: Jonathan Ellis
>            Assignee: Pavel Yaskevich
>             Fix For: 0.8
>
>         Attachments: CASSANDRA-2409.patch, v1-0001-CASSANDRA-2409-CQL-INSERT-implementation.txt
>
>
> There are two reasons to support INSERT:
> - It helps new users feel comfortable (everyone's first statement will be to try to INSERT
something, we should make that a positive experience instead of slapping them)
> - Even though it is synonymous with update it is still useful in your code to have both
to help communicate intent, similar to choosing good variable names
> The only downside is explaining how INSERT isn't a "true" insert because it doesn't error
out if the row already exists -- but we already have to explain that same concept for UPDATE;
the cognitive load is extremely minor.

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