appendForJoin

appendForJoin(engine, isLeftTable, data)

engine is a streaming join engine, which is the abstract table object returned by function createAsofJoinEngine, createEquiJoinEngine, createWindowJoinEngine, createLeftSemiJoinEngine, or createLookupJoinEngine.

isLeftTable is a Boolean value indicating whether to insert into the left table or right table.

data is the data to be ingested into the streaming engine.

Insert data into a streaming join engine.

Please note that the parameter handler of function subscribeTable must be appendForJoin, getLeftStream, or getRightStream while subscribing to a stream table of a streaming join engine.

leftTable=table(1:0, `timestamp`sym`price, [TIMESTAMP, SYMBOL, DOUBLE])
rightTable=table(1:0, `timestamp`sym`val, [TIMESTAMP, SYMBOL, DOUBLE])
output=table(100:0, `timestamp`sym`price`val`total, [TIMESTAMP, SYMBOL, DOUBLE, DOUBLE, DOUBLE])
ajEngine=createAsofJoinEngine("test1", leftTable, rightTable, output, <[price, val, price*val]>, `sym, `timestamp, false, 7)

tmp1=table(take(2012.01.01T00:00:00.000+[1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 20) as timestamp, take(`AAPL, 10) join take(`IBM, 10) as sym, double(1..20) as price)
tmp2=table(take(2012.01.01T00:00:00.000+[1, 2, 3, 4, 4, 4, 4, 4, 4, 4], 20) as timestamp, take(`AAPL, 10) join take(`IBM, 10) as sym, double(1..20) as val)

appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.001))
appendForJoin(ajEngine, false, (select * from tmp2 where timestamp=2012.01.01T00:00:00.001))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.002))
appendForJoin(ajEngine, false, (select * from tmp2 where timestamp=2012.01.01T00:00:00.002))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.003))
appendForJoin(ajEngine, false, (select * from tmp2 where timestamp=2012.01.01T00:00:00.003))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.004))
appendForJoin(ajEngine, false, (select * from tmp2 where timestamp=2012.01.01T00:00:00.004))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.005))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.006))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.007))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.008))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.009))
appendForJoin(ajEngine, true, (select * from tmp1 where timestamp=2012.01.01T00:00:00.010))

sleep(5000)