[jira] [Updated] (HBASE-24901) Create versatile hbase-shell table formatter

["Elliot Miller (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-24901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Elliot Miller updated HBASE-24901:
----------------------------------
    Description: 
As a user, I would like a simple interface for shell output that can be expressed as a table (ie. output with a fixed number of columns and potentially many rows). To be clear, this new formatter is not specifically for HBase "tables." Table is used in the broader sense here.

Goals
- Do not require more than one output cell loaded in memory at a time
- Support many implementations like aligned human-friendly tables, unaligned delimited, and JSON

Non-goals
- Don't load all the headers into memory at once.
  - This may seem like a goal with merit, but we are unlikely to find a use case for this formatter with many columns. For example: since HBase tables aren't relational, our scan output will not have an output column for every HBase column. Instead, each output row will correspond to an HBase cell.

  was:
As a user, I would like a simple interface for shell output that can be expressed as a table (ie. output with a fixed number of columns and potentially many rows). To be clear, this new formatter is not specifically for HBase "tables." Table is used in the broader sense here.

Goals
- Do not require more than one output cell loaded in memory at a time
- Support many implementations like aligned human-friendly tables, unaligned delimited, and JSON

Non-goals
- Don't load all the headers into memory at once.
  - This may seem like a goal with merit, but we are unlikely to find a use case for this
    formatter with many columns. For example: since HBase tables aren't relational, our scan
    output will not have an output column for every HBase column. Instead, each output row
    will correspond to an HBase cell.


> Create versatile hbase-shell table formatter
> --------------------------------------------
>
>                 Key: HBASE-24901
>                 URL: https://issues.apache.org/jira/browse/HBASE-24901
>             Project: HBase
>          Issue Type: Improvement
>          Components: shell
>    Affects Versions: 3.0.0-alpha-1
>            Reporter: Elliot Miller
>            Assignee: Elliot Miller
>            Priority: Major
>
> As a user, I would like a simple interface for shell output that can be expressed as a table (ie. output with a fixed number of columns and potentially many rows). To be clear, this new formatter is not specifically for HBase "tables." Table is used in the broader sense here.
> Goals
> - Do not require more than one output cell loaded in memory at a time
> - Support many implementations like aligned human-friendly tables, unaligned delimited, and JSON
> Non-goals
> - Don't load all the headers into memory at once.
>   - This may seem like a goal with merit, but we are unlikely to find a use case for this formatter with many columns. For example: since HBase tables aren't relational, our scan output will not have an output column for every HBase column. Instead, each output row will correspond to an HBase cell.



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