getTopicProcessedOffset

getTopicProcessedOffset(topic)

topic is the subscription topic returned by function subscribeTable

• If parameter persistOffset of function subscribeTable is true, return the offset of the last subscribed message that has been processed.
• If parameter persistOffset of function subscribeTable is false, return -1.

share streamTable(1000:0, `time`sym`qty, [TIMESTAMP, SYMBOL, INT]) as trades
trades_1 = streamTable(1000:0, `time`sym`qty, [TIMESTAMP, SYMBOL, INT])
topic=subscribeTable(tableName="trades", actionName="trades_1", offset=0, handler=append!{trades_1}, msgAsTable=true, persistOffset=true)
def writeData(n){
   timev = 2018.10.08T01:01:01.001 + timestamp(1..n)
   symv =take(`A`B, n)
   qtyv = take(1, n)
   insert into trades values(timev, symv, qtyv)
}
writeData(6);
select * from trades_1;

getTopicProcessedOffset(topic);
// output
5