Patrick Hatcher wrote:
> Sorry. I didn't realize there was a setting besides the Global one. Here
> you go:
> (See attached file: psqlodbc_5360.log)
Thanks.
AFAIC the merits to use DECLARE/FETCH mode are
1. You can suppress the memory consumption at some level.
2. you can get first rows fast in some cases.
Looking at the log you sent me, probably the query in question is
declare "SQL_CUR02D9FB78" cursor for select amc_Week_id,
lpad(zl_divn_nbr::text,2,0) as zl_divn_nbr,
lpad(dept::text,4,0) as dept, .............
As for the merit 1), though the query returns 156673 records , you can
get them successfully even when
your machine has pretty small size of memory.
As for the merit 2), you don't get first rows first for the query
unfortunately.
According to the Commlog
declare "SQL_ ... 0.282sec
fetch the 1st 1000 rows 431.453sec
fetch the rest of the rows 29.89sec
Total throughput 461.625sec may be longer than that of the same query
without
using DECLARE/FETCH mode.
regards,
Hiroshi Inoue
