Synchronize inside a loop seems not working

We have the following statement that get the latest timestamp from a TransactionLines-table (synced from Exact Online by Invantive) from SQL Server for each division:

create or replace table timestamp_table@inmemorystorage
( last_timestamp Datetime
, division int
);
create or replace table to_insertupdate@inmemorystorage
as 
select * 
from   ExactOnlineREST.Sync.SyncTransactionLines@eol LIMIT 0
;
--
-- Get the max_timestamp per division from SQL Server.
--
Declare
  Max_timeStamp_dest Bigint;
  Records_to_insert_update int;
  Records_to_delete int;
  Records_inserted_updated int;
Begin
  for r in 
  (
    execute native 'select MAX(TimeStamp) as last_timestamp, Division as division from eol_rest_transactionlinesincremental group by division'
    datacontainer 'sqlServer'
  )
  loop
    insert into timestamp_table@inmemorystorage (last_timestamp, division) values (r.last_timestamp, r.division);
  end loop;
end;

To verify, the statement

select * 
from   timestamp_table@inmemorystorage

gives the following result:

Capture d’écran 2024-03-21 à 14.35.20

Then we run second statement that should insert into to_insertupdate@inmemorystorage
the records that have changed in Exact Online, based on the last timestamp value pulled from SQL Server:

Declare
  l_sql varchar2;
begin
for r in 
  ( select * 
    from   timestamp_table@inmemorystorage
  )
  loop
    create or replace table temp@inmemorystorage 
    as 
    select * 
    from   ExactOnlineREST.Sync.SyncTransactionLines@eol E
    where  E.timestamp > r.last_timestamp 
    and    E.division = r.division
    ;
    l_sql := sqlrowcount;
    dbms_output.put_line('found ' || l_sql || ' records for division ' || r.division || chr(10));
    synchronize temp@inmemorystorage to to_insertupdate@inmemorystorage with insert identified by id;
    l_sql := sqlerrm;
    dbms_output.put_line(l_sql || chr(10));
  end loop;
end;

We loop on the timestamp_tabletemp@inmemorystorage and call @eol to get the values modified/created since then, insert them in a temp@inmemorystorage by a create or replace, then synchronize with insert in the table to_insertupdate@inmemorystorage

Unfortunately, the synchronize does no write anything.

If the following statement is executed out of the loop, it saves values:

`synchronize temp@inmemorystorage to to_insertupdate@inmemorystorage with insert identified by id

We would like to use the synchronize with insert because it prevent to enumerate the fields and fields values in a insert stmt.

Well found!

This is a known issue on 24.0 for which, actually, this morning a bugfix was made. It is currently in test.

Synchronize currently is a no-operation when used within a PSQL-block. When executed directly from the SQL-context (so without beginend around it) it works as designed.

PS. Nice trick to query the sync* tables using timestamp as a filter. It is the sole server-side filter available on these tables.

The issue is resolved in release 24.0.104, available now through https://releasenotes.invantive.com.

It Works !
24.0.104 solves the issue.

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