[ https://issues.apache.org/jira/browse/SOLR-8588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joel Bernstein updated SOLR-8588: --------------------------------- Description: Topics are similar to Alerts (SOLR-8577) in that they return only new content. But Topics return *all* new documents for a query, where Alerts return the top N results. So where Alerts are designed to notify of very specific new content, Topics are primarily a syndication tool. When combined with the DaemonStream (SOLR-8550), Topics can provide continuous streaming. Sample syntax: {code} topic(checkpointCollection, dataCollection, q="awesome stuff") {code} The checkpoint collection will be used to persist the topic checkpoints. Example combined with the DaemonStream: {code} daemon(topic(...)...) {code} was: Topics are similar to Alerts (SOLR-8577) in that they return only new content. But Topics return *all* new documents for a query, where Alerts return the top N results. So where Alerts are designed to notify of very specific new content, Topics are primarily a syndication tool. When combined with DaemonStream (SOLR-8550), Topics can provide continuous streaming. Sample syntax: {code} topic(checkpointCollection, dataCollection, q="awesome stuff") {code} The checkpoint collection will be used to persist the topic checkpoints. Example combined with the DaemonStream: {code} daemon(topic(...)...) {code} > Add TopicStream to the streaming API > ------------------------------------ > > Key: SOLR-8588 > URL: https://issues.apache.org/jira/browse/SOLR-8588 > Project: Solr > Issue Type: New Feature > Reporter: Joel Bernstein > > Topics are similar to Alerts (SOLR-8577) in that they return only new > content. But Topics return *all* new documents for a query, where Alerts > return the top N results. So where Alerts are designed to notify of very > specific new content, Topics are primarily a syndication tool. > When combined with the DaemonStream (SOLR-8550), Topics can provide > continuous streaming. Sample syntax: > {code} > topic(checkpointCollection, dataCollection, q="awesome stuff") > {code} > The checkpoint collection will be used to persist the topic checkpoints. > Example combined with the DaemonStream: > {code} > daemon(topic(...)...) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org