Re: [sqlite] Why this LIMIT
2018-03-11 9:49 GMT+01:00 Clemens Ladisch : > Cecil Westerhof wrote: > > I see that in certain older queries I use: > > LIMIT (SELECT COUNT(*) FROM TABLE) > > > > It looks like this has no use (limiting the selected records to the > > number of records there are). Anyone an idea what could be a reason for > > this? > > Trying to put some table data into the cache? > > Reading into a fixed-sized array, and protecting against concurrent > inserts (from inside the same transaction)? > > Needing the LIMIT clause for some reason (disabling subquery flattening?) > but not knowing about "LIMIT -1"? > None ring a bell. -- Cecil Westerhof ___ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Why this LIMIT
Cecil Westerhof wrote: > I see that in certain older queries I use: > LIMIT (SELECT COUNT(*) FROM TABLE) > > It looks like this has no use (limiting the selected records to the > number of records there are). Anyone an idea what could be a reason for > this? Trying to put some table data into the cache? Reading into a fixed-sized array, and protecting against concurrent inserts (from inside the same transaction)? Needing the LIMIT clause for some reason (disabling subquery flattening?) but not knowing about "LIMIT -1"? Regards, Clemens ___ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
