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https://issues.apache.org/jira/browse/ASTERIXDB-3303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17786824#comment-17786824
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ASF subversion and git services commented on ASTERIXDB-3303:
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Commit 21dee763867b490bddeedddcb1e01384a84c4ec2 in asterixdb's branch
refs/heads/master from murali4104
[ https://gitbox.apache.org/repos/asf?p=asterixdb.git;h=21dee76386 ]
[ASTERIXDB-3303][COMP] projection sizes
Change-Id: I0f9df7b7937e0248c6fdae84a527680fac2fa915
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/17946
Integration-Tests: Jenkins <[email protected]>
Tested-by: Jenkins <[email protected]>
Reviewed-by: Vijay Sarathy <[email protected]>
> Calculate projection size at scan level (CBO)
> ---------------------------------------------
>
> Key: ASTERIXDB-3303
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-3303
> Project: Apache AsterixDB
> Issue Type: Improvement
> Components: COMP - Compiler
> Reporter: murali krishna
> Priority: Major
>
> It is useful for the CBO to know the how many fields are being projected out
> at the scan level and their avg sizes. This will tell us how many bytes are
> projected at the scan level. This information is used by the cost formulas.
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