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https://issues.apache.org/jira/browse/HAWQ-1103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleksandr Diachenko updated HAWQ-1103:
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    Description: 
As for now HAWQ sends filter string without datatypes and length:

a<column index>c<constant value>o<operation code>...

Idea is to send filter in following format:

a<column index>c<scalar constant datatype oid>s<number of characters to 
read>d<actual data>.

  was:
As for now HAWQ sends filter string without datatypes and length:

a<column index>c<constant value>o<operation code>...


> Send constant datatype and length in filter to PXF
> --------------------------------------------------
>
>                 Key: HAWQ-1103
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1103
>             Project: Apache HAWQ
>          Issue Type: Improvement
>          Components: PXF
>            Reporter: Oleksandr Diachenko
>            Assignee: Oleksandr Diachenko
>             Fix For: backlog
>
>
> As for now HAWQ sends filter string without datatypes and length:
> a<column index>c<constant value>o<operation code>...
> Idea is to send filter in following format:
> a<column index>c<scalar constant datatype oid>s<number of characters to 
> read>d<actual data>.



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