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https://issues.apache.org/jira/browse/FLINK-21782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu updated FLINK-21782:
----------------------------
Component/s: Table SQL / Ecosystem
Connectors / HBase
> 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
>
> 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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