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https://issues.apache.org/jira/browse/KYLIN-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15188750#comment-15188750
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hongbin ma commented on KYLIN-1483:
-----------------------------------
the function is implemented in CubeStatsReader, the cuboids stats are estimated.
sample output:
============================================================================
Statistics of test_kylin_cube_with_slr_empty[19700101000000_20220101000000]
Total cuboids: 31
Total estimated rows: 181446
Total estimated size(MB): 3.1786983013153076
Sampling percentage: 100
Mapper overlap ratio: 1.0
|---- Cuboid 111111111, est row: 5962, est MB: 0.12
|---- Cuboid 101111111, est row: 5886, est MB: 0.11, shrink: 98.73%
|---- Cuboid 100111111, est row: 5958, est MB: 0.11, shrink: 101.22%
|---- Cuboid 100110111, est row: 5904, est MB: 0.11, shrink: 99.09%
|---- Cuboid 100100111, est row: 5911, est MB: 0.11, shrink:
100.12%
|---- Cuboid 100000111, est row: 5628, est MB: 0.1, shrink:
95.21%
|---- Cuboid 101110111, est row: 5970, est MB: 0.11, shrink: 101.43%
|---- Cuboid 101100111, est row: 5941, est MB: 0.11, shrink: 99.51%
|---- Cuboid 101000111, est row: 5914, est MB: 0.11, shrink:
99.55%
|---- Cuboid 110111111, est row: 6036, est MB: 0.12, shrink: 101.24%
|---- Cuboid 110110111, est row: 5944, est MB: 0.12, shrink: 98.48%
|---- Cuboid 110100111, est row: 5994, est MB: 0.12, shrink: 100.84%
|---- Cuboid 110000111, est row: 5921, est MB: 0.11, shrink:
98.78%
|---- Cuboid 111110111, est row: 5970, est MB: 0.12, shrink: 100.13%
|---- Cuboid 111100111, est row: 5896, est MB: 0.12, shrink: 98.76%
|---- Cuboid 111000111, est row: 5925, est MB: 0.11, shrink: 100.49%
|---- Cuboid 111111000, est row: 5952, est MB: 0.1, shrink: 99.83%
|---- Cuboid 101111000, est row: 5819, est MB: 0.09, shrink: 97.77%
|---- Cuboid 100111000, est row: 5744, est MB: 0.09, shrink: 98.71%
|---- Cuboid 100110000, est row: 5622, est MB: 0.09, shrink:
97.88%
|---- Cuboid 100100000, est row: 4846, est MB: 0.07,
shrink: 86.2%
|---- Cuboid 101110000, est row: 5742, est MB: 0.09, shrink: 98.68%
|---- Cuboid 101100000, est row: 5816, est MB: 0.09, shrink:
101.29%
|---- Cuboid 101000000, est row: 5720, est MB: 0.09,
shrink: 98.35%
|---- Cuboid 110111000, est row: 5937, est MB: 0.1, shrink: 99.75%
|---- Cuboid 110110000, est row: 5957, est MB: 0.1, shrink: 100.34%
|---- Cuboid 110100000, est row: 5866, est MB: 0.09, shrink:
98.47%
|---- Cuboid 110000000, est row: 5934, est MB: 0.09,
shrink: 101.16%
|---- Cuboid 111110000, est row: 5905, est MB: 0.1, shrink: 99.21%
|---- Cuboid 111100000, est row: 5876, est MB: 0.09, shrink: 99.51%
|---- Cuboid 111000000, est row: 5950, est MB: 0.09, shrink:
101.26%
----------------------------------------------------------------------------
> Command tool to visualize all cuboids in a cube/segment
> -------------------------------------------------------
>
> Key: KYLIN-1483
> URL: https://issues.apache.org/jira/browse/KYLIN-1483
> Project: Kylin
> Issue Type: New Feature
> Reporter: hongbin ma
> Assignee: hongbin ma
>
> It would help cube designer to better understand the cube by telling them how
> many cuboids are there in the cube, where the cuboid the computed from, and
> how much smaller a cuboid is compared to its parent.
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