On 09/21/2016 08:30 AM, Michael Paquier wrote: > On Sat, Sep 17, 2016 at 2:04 AM, Masahiko Sawada <sawada.m...@gmail.com> > wrote: >> Since we already released 9.6RC1, I understand that it's quite hard to >> change syntax of 9.6. >> But considering that we support the quorum commit, this could be one >> of the solutions in order to avoid breaking backward compatibility and >> to provide useful user interface. >> So I attached these patches. > > standby_config: > - standby_list { $$ = create_syncrep_config("1", $1); } > - | FIRST NUM '(' standby_list ')' { $$ = > create_syncrep_config($1, $4); } > + standby_list { $$ = > create_syncrep_config("1", $1, SYNC_REP_PRIORITY); } > + | ANY NUM '(' standby_list ')' { $$ = > create_syncrep_config($2, $4, SYNC_REP_QUORUM); } > + | FIRST NUM '(' standby_list ')' { $$ = > create_syncrep_config($2, $4, SYNC_REP_PRIORITY); } > > Reading again the thread, it seems that my previous post [1] was a bit > misunderstood. My position is to not introduce any new behavior > changes in 9.6, so we could just make the FIRST NUM grammar equivalent > to NUM. > > [1]: > https://www.postgresql.org/message-id/CAB7nPqRDvJn18e54ccNpOP1A2_iUN6-iU=4njgmmgiagvcs...@mail.gmail.com
I misunderstood your intent, then. But I still stand by what I did understand, namely that 'k (...)' should mean 'any k (...)'. It's much more natural than having it mean 'first k (...)' and I also think it will be more frequent in practice. -- Vik Fearing +33 6 46 75 15 36 http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers