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https://issues.apache.org/jira/browse/BEAM-10279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17476803#comment-17476803
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Kenneth Knowles commented on BEAM-10279:
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Hi [~rafi_kamal]. Sorry this bug did not receive a comment yet. This seems 
potentially useful, though I am not an expert. Would you be interested in 
working on it and contributing it perhaps? :-) :-) :-)

> Read Bigtable Rows by Prefix
> ----------------------------
>
>                 Key: BEAM-10279
>                 URL: https://issues.apache.org/jira/browse/BEAM-10279
>             Project: Beam
>          Issue Type: Wish
>          Components: io-java-gcp
>            Reporter: Rafi Kamal
>            Priority: P3
>              Labels: Bigtable
>
> BigtableIO.Read provides a withKeyRange method to specify Bigtable keys 
> within a [start, end) range. Unfortunately, it doesn't seem to provide a way 
> of reading rows by a common prefix, although Bigtable natively supports this 
> feature:  [https://cloud.google.com/bigtable/docs/cbt-reference#read_rows.]
> Our use case, we have several "types" in our table, and each type is prefixed 
> with the name of the type. The only other way to reading all rows with a 
> specific prefix seems to use a RowFilter with row_key_regex_filter set, but 
> it looks like that will result in a full table scan.



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