On Thu, Jul 31, 2014 at 10:42 AM, Simon Michael <[email protected]> wrote:

> On 7/30/14 8:03 PM, Martin Blais wrote:
>
>>     As I understand it, you are always matching postings, but the payee
>>     is propagated to each posting. I think of it as "postings with given
>>     account and payee," but you may be more comfortable if you say
>>     "postings with a given account and in a transaction with given
>>     payee." (Although this might also be less correct because you can
>>     override the payee per posting in a transaction.)
>>
>> That seems like an odd choice. If it was constrained to only select
>> subsets of transactions, then you'd have a claim to balance the reports.
>> Any subset of transactions will balance (because each of them
>> individually does). So for instance, my view of what "account = X"
>> should mean is "match all transactions that have at least one posting
>> with account X". You should never be able to isolate postings from their
>> transactions, it breaks the DE system.
>>
>> Then if you want to restrict what you end up printing out, that's fine,
>> but that's an entirely different operation, one that only filters what
>> gets rendered, and that would depend only on the report type, it would
>> never affect any calculations.
>>
>
> As I see it, the print command prints whole transactions and filters by
> transaction, but register prints individual postings and filters by
> posting, so there's no expectation of it showing you balanced data.
>
> I haven't needed or wanted more than one kind of filtering (eg --limit and
> --display in ledger). Sometimes (not often) I'll do a multi-step filter by
> using print to select the transactions I want and pipe the result into
> register.


It would be really nice if the Ledger manual was updated to reflect its
filtering semantics more clearly.
I don't think I've come across this detail.

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