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From "Flink Jira Bot (Jira)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-21782) Lookup Table based on rowkey ranges
Date Thu, 29 Apr 2021 22:57:11 GMT

     [ https://issues.apache.org/jira/browse/FLINK-21782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Flink Jira Bot updated FLINK-21782:
-----------------------------------
    Labels: auto-deprioritized-major  (was: stale-major)

> Lookup Table based on rowkey ranges
> -----------------------------------
>
>                 Key: FLINK-21782
>                 URL: https://issues.apache.org/jira/browse/FLINK-21782
>             Project: Flink
>          Issue Type: Improvement
>          Components: Connectors / HBase, Table SQL / Ecosystem
>            Reporter: Felipe Lolas
>            Priority: Major
>              Labels: auto-deprioritized-major
>
> Hi,
> Currently in a HBase table we model the data for a fast prefix filter scan, would be
nice that we can use a lookup join as:
>  
> {code:java}
> SELECT
>    *
> FROM
>    tbl
> LEFT JOIN
>    hbaseTbl 
> ON
>   hbaseTbl.rowkey between tbl.field1 AND tbl.field2{code}
> In HBase we can traduce that as a RANGE SCAN operator with startRow = tbl.field1 and
endRow = tbl.field2
> Maybe too (same as Apache phoenix behaviour)
>  
> {code:java}
> SELECT
>  *
> FROM
>  tbl
> LEFT JOIN
>  hbaseTbl 
> ON
>  hbaseTbl.rowkey LIKE tbl.field1 || '%'{code}
>  
> traduced as RANGE SCAN with startRow=tbl.field1 - 1 (replacing the last character with
lexicographical order -1) and endRow=tbl.field1 or simply a RowPrefixFilter (does the same)



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