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Pinot vs Druid
Druid Pinot
Architecture
Realtime + Offline,
Realtime only
Realtime + Offline
Realtime only -> consistency is hard and
schema evolution/Bootstrap is hard
Inverted Index
Always On all columns,
Fixed
Configurable on per
column basis
Allows trade off between scanning v/s
inverted index + scanning. More data can be
fit in given memory size
Data organization N/A Sorts data
Organizing data provides speed/better
compression and removes the need for
inverted index
Smart pre-
materialization
N/A star-tree Allows trade off between latency and space
Query Execution
Layer
Fixed Plan
Split into Planning
and execution
Smart choices can be made at runtime
based on metadata/query.
Tuesday, August 18, 15

Publié dans : Technologie
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