Thread: Compatibility modes supported in ECPG

Hi All,

As per the documentation of ecpg, currently we support only two types
of compatibility modes with ecpg and they are 1) INFORMIX and 2)
INFORMIX_SE. However, it does accept any compatibility mode option
that starts with INFORMIX*. For e.g. let us say, if i pass
'INFORMIX_BAD_COMPAT_MODE' as a compatibility mode, it still accepts
it.

[ashu@localhost bin]$ ./ecpg -C INFORMIX_BAD_COMPAT_MODE test_compat_modes.pc
[ashu@localhost bin]$

Shouldn't we throw an error for this, instead of accepting it and
assuming it as INFORMIX_SE mode. Thoughts?

--
With Regards,
Ashutosh Sharma
EnterpriseDB:http://www.enterprisedb.com

Hi,

> Shouldn't we throw an error for this, instead of accepting it and
> assuming it as INFORMIX_SE mode. Thoughts?

Yes, I'd say that would be better. :)

Michael
--
Michael Meskes
Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
Meskes at (Debian|Postgresql) dot Org
Jabber: michael at xmpp dot meskes dot org
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On Wed, Jan 10, 2018 at 5:59 PM, Michael Meskes <meskes@postgresql.org> wrote:
> Hi,
>
>> Shouldn't we throw an error for this, instead of accepting it and
>> assuming it as INFORMIX_SE mode. Thoughts?
>
> Yes, I'd say that would be better. :)
>

Thanks Michael. Shall i submit a patch for it. Also, what about making
the compatibility modes case insensitive. Currently, ecpg accepts
compatibility mode only in capital letters. In case if the INFORMIX or
INFORMIX_SE is entered in small or mixed type letter, ecpg throws an
error. Shouldn't that be handled as well?

--
With Regards,
Ashutosh Sharma
EnterpriseDB:http://www.enterprisedb.com

> Michael
> --
> Michael Meskes
> Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
> Meskes at (Debian|Postgresql) dot Org
> Jabber: michael at xmpp dot meskes dot org
> VfL Borussia! Força Barça! Go SF 49ers! Use Debian GNU/Linux, PostgreSQL

> Thanks Michael. Shall i submit a patch for it. Also, what about

Yes, please.

> making
> the compatibility modes case insensitive. Currently, ecpg accepts
> compatibility mode only in capital letters. In case if the INFORMIX
> or
> INFORMIX_SE is entered in small or mixed type letter, ecpg throws an
> error. Shouldn't that be handled as well?

Actually I don't mind either way. There is definitely an advantage of
having it case insensitive, but then options are known to be case
sensitive often enough.

Michael
--
Michael Meskes
Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
Meskes at (Debian|Postgresql) dot Org
Jabber: michael at xmpp dot meskes dot org
VfL Borussia! Força Barça! SF 49ers! Use Debian GNU/Linux, PostgreSQL

On Thu, Jan 11, 2018 at 4:34 PM, Michael Meskes <meskes@postgresql.org> wrote:
>> Thanks Michael. Shall i submit a patch for it. Also, what about
>
> Yes, please.
>

Thanks. Attached are the patches
'Allow_ecpg_to_throw_error_for_wrong_compat_modes_v1' and
'Allow_ecpg_to_throw_error_for_wrong_compat_modes_v2' that fixes the
reported issues.

>> making
>> the compatibility modes case insensitive. Currently, ecpg accepts
>> compatibility mode only in capital letters. In case if the INFORMIX
>> or
>> INFORMIX_SE is entered in small or mixed type letter, ecpg throws an
>> error. Shouldn't that be handled as well?
>
> Actually I don't mind either way. There is definitely an advantage of
> having it case insensitive, but then options are known to be case
> sensitive often enough.
>

I feel we should make them case insensitive. The reason being, other
embedded SQL programming languages for e.g. Pro*C accepts case
insensitive options. So, why can't we make our ecpg options case
insensitive as well. Thoughts?

--
With Regards,
Ashutosh Sharma
EnterpriseDB:http://www.enterprisedb.com

> Michael
> --
> Michael Meskes
> Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
> Meskes at (Debian|Postgresql) dot Org
> Jabber: michael at xmpp dot meskes dot org
> VfL Borussia! Força Barça! SF 49ers! Use Debian GNU/Linux, PostgreSQL
>

> Thanks. Attached are the patches
> 'Allow_ecpg_to_throw_error_for_wrong_compat_modes_v1' and
> 'Allow_ecpg_to_throw_error_for_wrong_compat_modes_v2' that fixes the
> reported issues.

Thanks, I just committed the case insensitive version.

Michael
--
Michael Meskes
Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
Meskes at (Debian|Postgresql) dot Org
Jabber: michael at xmpp dot meskes dot org
VfL Borussia! Força Barça! SF 49ers! Use Debian GNU/Linux, PostgreSQL