Filters and Patterns
XY*Z
price=$2
stock=MSFT
date=7.12.98
X:
price < $5
X
Y
Z
Filter
X: price < $5
y
y
x
x
z
z
x
notify
price=$1
publish
notify
Pattern
price=$10
price=$2
price=$7
publish
publish
publish
publish
publish
publish
publish
publish
price=$1
notify
price=$2
time
curr=Lira
qty=4321
curr=Lira
qty=4321
diff=10%
price=$3
stock=DEC
price=$12
stock=DEC
price=$2
stock=MSFT
date=7.12.98
curr=Lira
qty=4321
curr=Lira
qty=4321
diff=10%
price=$3
stock=DEC
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