[Buildroot] [PATCH] package/systemd: needs glibc

Nicolas Cavallari Nicolas.Cavallari at green-communications.fr
Tue Dec 4 11:17:37 UTC 2018

On 04/12/2018 12:02, Arnout Vandecappelle wrote:
> On 04/12/2018 11:32, Nicolas Cavallari wrote:
>> Adding an index on result_id helps:
>> MariaDB [brautobuild]> create index resid on symbol_per_result (result_id);
>> MariaDB [brautobuild]> select A.result_id from symbol_per_result A,
>> symbol_per_result B where A.result_id = B.result_id and A.symbol_id = (select id
>> from config_symbol where name = "BR2_INIT_SYSTEMD" and value = "y") and
>> B.symbol_id = (select id from config_symbol where name =
>> "BR2_TOOLCHAIN_USES_UCLIBC" and value = "y");
>> Empty set (9.55 sec)
>  Maybe it would be even better to make (result_id, symbol_id) the primary key of
> symbol_per_result? Or do I misunderstand the implications of primary key?

i was a bit confused about the various id in symbol_per_result.  If
symbol_per_result.id is unused, then yes, remove it and make (result_id,
symbol_id) the primary key.

(i'm assuming that mysql can use an (a,b) index to search for a, it should be
the case now in 2018)

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