Re: [SQL NOTIFY Help] sending NOTIFY to the external program
| От | Richard Huxton |
|---|---|
| Тема | Re: [SQL NOTIFY Help] sending NOTIFY to the external program |
| Дата | |
| Msg-id | 459BB8FD.8030207@archonet.com обсуждение исходный текст |
| Ответ на | Re: [SQL NOTIFY Help] sending NOTIFY to the external program (<ramachandra.bhaskaram@wipro.com>) |
| Список | pgsql-sql |
ramachandra.bhaskaram@wipro.com wrote: > Hi Richard Huxton, > > Thank you for your kind response. > > Is there not any other way other than record the pkey in a > "process_these" table and have the application check there. We want > to minimise the database transactions to improve the DB performance. > > Can we send the exact data which has been changed using > db-notify to the application? So that, the application can continue > processing the data using the Notify message from the DB. Not via your database connection. With one of the untrusted languages (C, pl/perlu pl/pythonu etc) you could do anything you could make a separate connection / write to a file etc. Does your application need to know *immediately* that a change in the database has occurred? -- Richard Huxton Archonet Ltd
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