| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Greg Stark <stark(at)mit(dot)edu>, Bruce Momjian <bruce(at)momjian(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, premanand <kottiprem(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: MySQL search query is not executing in Postgres DB |
| Date: | 2012-11-21 22:10:01 |
| Message-ID: | 50AD5139.10607@gmx.net |
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| Lists: | pgsql-hackers |
On 11/21/12 9:42 AM, Robert Haas wrote:
> On Mon, Nov 19, 2012 at 6:19 PM, Peter Eisentraut <peter_e(at)gmx(dot)net> wrote:
>> On Tue, 2012-11-06 at 10:57 -0500, Robert Haas wrote:
>>> But, with the attached patch:
>>>
>>> rhaas=# create function xyz(smallint) returns smallint as $$select
>>> $1$$ language sql;
>>> CREATE FUNCTION
>>> rhaas=# select xyz(5);
>>> xyz
>>> -----
>>> 5
>>> (1 row)
>>>
>>> rhaas=# create table abc (a int);
>>> CREATE TABLE
>>> rhaas=# select lpad(a, 5, '0') from abc;
>>> lpad
>>> ------
>>> (0 rows)
>>
>> I continue to be of the opinion that allowing this second case to work
>> is not desirable.
>
> 1. Why?
Because a strongly-typed system should not cast numbers to strings
implicitly. Does the equivalent of the lpad case work in any other
strongly-typed programming language?
> 2. What's your counter-proposal?
Leave things as they are.
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