Dongjoon Hyun created TAJO-1430:
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Summary: Implement Query Parsing Result Caching
Key: TAJO-1430
URL: https://issues.apache.org/jira/browse/TAJO-1430
Project: Tajo
Issue Type: New Feature
Components: parser
Affects Versions: 0.10.0
Reporter: Dongjoon Hyun
Assignee: Dongjoon Hyun
Fix For: 0.10.1
There are wide tables with many many columns. Moveover, BI tools generate very
complex queries whose size is several MB. Although Tajo executes those queries
very fast in a few seconds, the total time of UX is slow.
To become a fastest Hadoop DW, we need this following feature.
{code:sql}
tsql -c "create table t3(a int)"
OK
tsql -c "insert overwrite into t select 1"
(1 rows, 0.14 sec, 2 B inserted)
time tsql -f middle.sql > /dev/null
real 0m19.058s
user 0m2.148s
sys 0m0.268s
time tsql -f ~/tajo/middle.sql > /dev/null
real 0m18.496s
user 0m2.119s
sys 0m0.240s
$ time ./tsql -f ~/tajo/long.sql > /dev/null
real 0m36.974s
user 0m2.305s
sys 0m0.272s
$ time ./tsql -f ~/tajo/long.sql > /dev/null
real 0m4.103s
user 0m2.237s
sys 0m0.249s
{code}
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