asari-mtr / presto-udaf

select answer_to_life('the unierse');

>> 42

Install

build

$ mvn clean install
$ scp target/presto-udaf-1.0-SNAPSHOT.zip #{emr.ip}.ap-northeast-1.compute.amazonaws.com:/home/hadoop/

on emr

$ unzip presto-udaf-1.0-SNAPSHOT.zip
$ sudo cp -a presto-udaf-1.0-SNAPSHOT/ /usr/lib/presto/plugin/
$ sudo restart presto-server

see server.log

$ tail -f /mnt/var/log/presto/server.log

execute presto-cli

$ presto-cli
# debug mode
$ presto-cli --debug

function list

presto> show functions;