1. Want to know if there is any different with following syntax to create proxy table for ase 12.5:
CREATE TABLE dbo.my_proxy_table
(
id int not null,
....
)
LOCK DATAPAGES
external table at 'loopback.mydb..myproc'
go
create existing table my_proxy_table (
id int not null,
....
) on 'default'
external procedure
at 'loopback.mydb..myproc'
go
2. How to change segment or data cache for a proxy table, or no segment or data cache for proxy table?
3. I have performance problem with a query to use this proxy table like
SELECT * FROM tab1, tab2, my_proxy_table
WHERE tab1.id = tab2.id and tab2.id2 *= my_proxy_table.id2
....
but If I run myproc, there is no performance problem. check with sp_lock, find out there is remote I/O. but this remote is actually local server(identify with loopback). Not sure how to identify the problem