From: | Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com> |
---|---|
To: | Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com> |
Cc: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: postgres_fdw - should we tighten up batch_size, fetch_size options against non-numeric values? |
Date: | 2021-05-19 11:32:04 |
Message-ID: | c2c29752-8ac2-63be-9080-f8063fd852d1@oss.nttdata.com |
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Lists: | pgsql-hackers |
On 2021/05/19 14:34, Bharath Rupireddy wrote:
> On Wed, May 19, 2021 at 8:28 AM Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com> wrote:
>>>>> I agree with throwing an error for non-numeric junk though.
>>>>> Allowing that on the grounds of backwards compatibility
>>>>> seems like too much of a stretch.
>>>>
>>>> +1.
>>>
>>> +1.
>>
>> +1
>
> Thanks all for your inputs. PSA which uses parse_int for
> batch_size/fech_size and parse_real for fdw_startup_cost and
> fdw_tuple_cost.
Thanks for updating the patch! It basically looks good to me.
- val = strtod(defGetString(def), &endp);
- if (*endp || val < 0)
+ is_parsed = parse_real(defGetString(def), &val, 0, NULL);
+ if (!is_parsed || val < 0)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("%s requires a non-negative numeric value",
Isn't it better to check "!is_parsed" and "val < 0" separately like
reloptions.c does? That is, we should throw different error messages
for them?
ERRCODE_SYNTAX_ERROR seems strange for this type of error?
ERRCODE_INVALID_PARAMETER_VALUE is better and more proper?
Regards,
--
Fujii Masao
Advanced Computing Technology Center
Research and Development Headquarters
NTT DATA CORPORATION
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