From kislenok.roman at gmail.com  Mon Apr 13 07:36:13 2015
From: kislenok.roman at gmail.com (=?UTF-8?B?0KDQvtC80LDQvSDQmtC40YHQu9C10L3QvtC6?=)
Date: Mon, 13 Apr 2015 15:36:13 +1000
Subject: [MonetDB.R] MONTH_INTERVAL
Message-ID: <CAEo1rGsGUqrQTz6zSm48FnQnV=++f_9kWviVGO6EkRbFJooVOw@mail.gmail.com>

Got an error from MonetDB.R on select:
<simpleError in monetdbRtype(info$types[i]): Unknown DB type MONTH_INTERVAL>

You can get this just by doing:
dbGetQuery(conn, "select cast('2015-03-02' as date) - cast('2015-03-01' as
date)")

May be it should be integer number:
dbGetQuery(conn, "select cast(cast('2015-03-02' as date) -
cast('2015-03-01' as date) as integer)")


-- 
Roman Kislenok
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From Hannes.Muehleisen at cwi.nl  Mon Apr 13 19:24:28 2015
From: Hannes.Muehleisen at cwi.nl (=?utf-8?Q?Hannes_M=C3=BChleisen?=)
Date: Mon, 13 Apr 2015 19:24:28 +0200
Subject: [MonetDB.R] MONTH_INTERVAL
In-Reply-To: <CAEo1rGsGUqrQTz6zSm48FnQnV=++f_9kWviVGO6EkRbFJooVOw@mail.gmail.com>
References: <CAEo1rGsGUqrQTz6zSm48FnQnV=++f_9kWviVGO6EkRbFJooVOw@mail.gmail.com>
Message-ID: <E73F9059-5CFB-430B-92A3-2603D944BCCA@cwi.nl>

Hi Roman,

> On 13 Apr 2015, at 07:36, ????? ???????? <kislenok.roman at gmail.com> wrote:
> 
> Got an error from MonetDB.R on select:
> <simpleError in monetdbRtype(info$types[i]): Unknown DB type MONTH_INTERVAL>
> 
> You can get this just by doing:
> dbGetQuery(conn, "select cast('2015-03-02' as date) - cast('2015-03-01' as date)")
> 
> May be it should be integer number:
> dbGetQuery(conn, "select cast(cast('2015-03-02' as date) - cast('2015-03-01' as date) as integer)")

You are correct, this is not supported yet. But it should be, this is why I have added it to the connector just now. Let me know how it goes

Here is the corresponding NEWS entry:
- Added support for esoteric data types such as MONTH_INTERVAL (Thanks, Roman)
- Cleaned up SQL to R type mapping (we had this twice)
- Now creating actual R integers if SQL data fits

You can download the 0.9.8 pre-release there:
http://homepages.cwi.nl/~hannes/R/MonetDB.R_0.9.8-0427ba916f4a.tar.gz


Best,

Hannes
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