Let's talk about sets
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Transcript of Let's talk about sets
KEY VALUE“User:1” {:email => “...”, :password => “...”}
CREATE
KEY VALUE“UserID” 1
“User:1” {:email => “...”, :password => “...”}
CREATE
KEY VALUE“UserID” 1
“User:1” {:email => “...”, :password => “...”}
“UsageID” 1
“Usage:1” {:start => ?, :stop => ?, :type => “download”, :user_id => 1}
CREATE
KEY VALUE“UserID” 1
“User:1” {:email => “...”, :password => “...”}
“UsageID” 1
“Usage:1” {:start => ?, :stop => ?, :type => “download”, :user_id => 1}
GET ITEM
GET ITEM
KEY VALUE“UserID” 2
“User:1” {:email => “...”, :password => “...”}
“User:2” {:email => “...”, :password => “...”}
“User: [email protected]” 1
“User: [email protected]” 2
GET ITEMS
“UserID”
“User:1”
“User:5”
“User:4”
“User:2”
“User:3”
“Usage:8”
“Usage:7”
“Usage:6”
“Usage:5”“Usage:4”
“Usage:3”
“Usage:2”
“Usage:1”
KEY VALUE“UserID” 2
“User:1” {:email => “...”, :password => “...”}
“User:2” {:email => “...”, :password => “...”}
“User:3” {:email => “...”, :password => “...”}
“Users” <1,2,3>
GET ITEMS
KEY VALUE“UserID” 2
“User:1” {:email => “...”, :password => “...”}
“User:2” {:email => “...”, :password => “...”}
“User:3” {:email => “...”, :password => “...”}
“Users” <1,2,3>
GET ITEMS
“User:1:usages” “3” “2” “4” “1” “5”1262325600 1262348100 12625128601262369700 1262416500 score
value
SORTED ITEMS
“User:1:usages” “3” “2” “4” “1” “5”1262325600 1262348100 12625128601262369700 1262416500 score
value
SORTED ITEMS
0 1 2 3 4 index
“User:1:usages” “3” “2” “4” “1” “5”1262325600 1262348100 12625128601262369700 1262416500 score
value
SORTED ITEMS
SORTED ITEMS
KEY VALUE“UserID” 2
“User:1” {:email => “...”, :password => “...”}
“User:2” {:email => “...”, :password => “...”}
“User:3” {:email => “...”, :password => “...”}
“Users” <1,2,3>
“User:1:usages” <(s1,1), (s2,2), (s3,3), (s4,4), (s5,5)>
“User:2:usages” <(s6,6), (s7,7), (s8,8)>
User:1:usages
“1”
“2”
“3”
“4” “5”
FILTER ITEMS
Downloads
Uploads
“1” “5”“7” “8”
“2” “4”“6”
Visits“3”
User:1:usages
“1”
“2”
“3”
“4” “5”
Usage:downloads
Usage:uploads
“1” “5”“7” “8”
“2” “4”“6”
FILTER ITEMS
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ryan lemmer
github.com/ezmobius/redis-rbohm.keyvalue.org