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https://issues.apache.org/jira/browse/PHOENIX-7588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Palash Chauhan reassigned PHOENIX-7588:
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Assignee: Palash Chauhan
> SUBBINARY() - Substring like search for Binary data types
> ---------------------------------------------------------
>
> Key: PHOENIX-7588
> URL: https://issues.apache.org/jira/browse/PHOENIX-7588
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Viraj Jasani
> Assignee: Palash Chauhan
> Priority: Major
> Fix For: 5.3.0
>
>
> We have SUBSTR() function that performs sub-string search within the given
> string data type. The proposal of this Jira is to build new function with
> similar functionality for Binary data types: BINARY, VARBINARY and
> VARBINARY_ENCODED.
> *Function:* SUBBINARY()
> *Arguments:*
> # BINARY, VARBINARY or VARBINARY_ENCODED - data type on which the sub-string
> like search is to be performed.
> # Offset - Specify the offset position on the above binary data from where
> the sub-string like comparison of binary is to be performed.
> # Length - Optional length of the binary data to compare.
> *Examples:*
> {code:java}
> SELECT * FROM T WHERE SUBBINARY(PK1, 0) = X'00000022d215';{code}
> Assuming PK1 is the only primary key column, the above query should return
> all rows where PK1 value starts with binary equivalent of value
> X'00000022d215' at offset 0. Therefore, the above query should return all
> rows that start with prefix value of X'00000022d215'.
>
> {code:java}
> SELECT * FROM T WHERE SUBBINARY(PK1, 3) = X'00000022d215';{code}
> Assuming PK1 is the only primary key column, the above query should return
> all rows where PK1 value starts with binary equivalent of value
> X'00000022d215' at offset 3.
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