Paul Rogers created DRILL-5285:
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Summary: Provide detailed, accurate estimate of size consumed by a
record batch
Key: DRILL-5285
URL: https://issues.apache.org/jira/browse/DRILL-5285
Project: Apache Drill
Issue Type: Sub-task
Affects Versions: 1.10.0
Reporter: Paul Rogers
Assignee: Paul Rogers
Fix For: 1.10.0
DRILL-5080 introduced a {{RecordBatchSizer}} that estimates the space taken by
a record batch and determines batch "density."
Drill provides a large variety of vectors, each with their own internal
structure and collections of vectors. For example, fixed vectors use just a
data vector. Nullable vectors add an "is set" vector. Variable length vectors
add an offset vector. Repeated vectors add a second offset vector.
The original {{RecordBatchSizer}} attempted to compute sizes for all these
vector types. But, the complexity got to be out of hand. This ticket requests
to simply bite the bullet and move the calculations into each vector type so
that the {{RecordBatchSizer}} can simply use the results of the calculations.
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