Abhishek Rawat created IMPALA-8620:
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Summary: Add compression codecs as table/column properties
Key: IMPALA-8620
URL: https://issues.apache.org/jira/browse/IMPALA-8620
Project: IMPALA
Issue Type: Improvement
Components: Backend
Reporter: Abhishek Rawat
Assignee: Abhishek Rawat
COMPRESSION_CODEC is supported as a query option.
It probably makes sense to provide a finer granularity control on the scope of
compression such as table and/or even columns.
There could also be scenarios where a select few columns (such as variable
length strings) could be compressed while others (such as integer family
columns) remain uncompressed for performance. Parquet's unit of compression is
a page and so it makes sense to provide capability to compress a given column.
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