Re: Refactoring: Use soft error reporting for *_opt_error functions

From: Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Amul Sul <sulamul(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Refactoring: Use soft error reporting for *_opt_error functions
Date: 2025-09-03 07:34:45
Message-ID: CAEZATCUqTBXrPZb6+FK2dGNdO2i1GHVGsPGSKAz=VK9mu2adBg@mail.gmail.com
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On Wed, 3 Sept 2025 at 07:47, Michael Paquier <michael(at)paquier(dot)xyz> wrote:
>
> The same error message is repeated twice. How about using some gotos
> and one single ereport instead of two? The same can be said for
> numeric_div_safe() and numeric_mod_safe(), for the division-by-0
> messages.

In numeric_div_safe() and numeric_mod_safe():

- * If "have_error" is provided, check for division by zero here
+ * If "escontext" is provided, raise division by zero soft error here
*/
- if (have_error && (arg2.ndigits == 0 || arg2.digits[0] == 0))
- {
- *have_error = true;
- return NULL;
- }
+ if (escontext && (arg2.ndigits == 0 || arg2.digits[0] == 0))
+ ereturn(escontext, NULL,
+ errcode(ERRCODE_DIVISION_BY_ZERO),
+ errmsg("division by zero"));

This might as well now be made to check for division-by-zero even if
escontext is NULL.

Regards,
Dean

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