MorphStore - In-Memory Query Processing based on Morphing Compressed Intermediates LIVE
MorphStore - In-Memory Query Processing based on Morphing Compressed Intermediates LIVE
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MorphStore - 基于变形压缩中间体的内存中查询处理 LIVE
DOI:
10.1145/3299869.3320234
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发表时间:
1920
期刊:
影响因子:
--
通讯作者:
Wolfgang Lehner
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文献类型:
--
作者:
Dirk Habich;Patrick Damme;Annett Ungethüm;Johannes Pietrzyk;Alexander Krause;Juliana Hildebrandt;Wolfgang Lehner
In this demo, we present MorphStore, an in-memory column store with a novel compression-aware query processing concept. Basically, compression using lightweight integer compression algorithms already plays an important role in existing in-memory column stores, but mainly for base data. The continuous handling of compression from the base data to the intermediate results during query processing has already been discussed, but not investigated in detail since the computational effort for compression as well as decompression is often assumed to exceed the benefits of a reduced transfer cost between CPU and main memory. However, this argument increasingly loses its validity as we are going to show in our demo. Generally, our novel compression-aware query processing concept is characterized by the fact that we are able to speed up the query execution by morphing compressed intermediate results from one scheme to another scheme to dynamically adapt to the changing data characteristics during query processing. Our morphing decisions are made using a cost-based approach.
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DOI:
10.1007/978-3-319-23135-8_11
发表时间:
2015
期刊:
影响因子:
--
作者:
Patrick Damme;Dirk Habich;Wolfgang Lehner
通讯作者:
Wolfgang Lehner
DOI:
10.1145/3323991
发表时间:
2019
期刊:
ACM Transactions on Database Systems (TODS)
影响因子:
--
作者:
Patrick Damme;Annett Ungethüm;Juliana Hildebrandt;Dirk Habich;Wolfgang Lehner
通讯作者:
Wolfgang Lehner
DOI:
10.5441/002/edbt.2017.08
发表时间:
2017
期刊:
影响因子:
--
作者:
Patrick Damme;Dirk Habich;Juliana Hildebrandt;Wolfgang Lehner
通讯作者:
Wolfgang Lehner
DOI:
--
发表时间:
2016
期刊:
ADMS/IMDM@VLDB
影响因子:
--
作者:
Juliana Hildebrandt;Dirk Habich;Patrick Damme;Wolfgang Lehner
通讯作者:
Wolfgang Lehner
DOI:
--
发表时间:
2018
期刊:
DBTest@SIGMOD
影响因子:
--
作者:
Dirk Habich;Patrick Damme;A. Ungethüm;Wolfgang Lehner
通讯作者:
Wolfgang Lehner