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From Aleš Zelený
Subject tds_fdw binary column
Date
Msg-id CAODqTUYTADtKgXMA-Wj9iZX8Z2t8jYR4xicNhquuY=NWyKZdFA@mail.gmail.com
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Responses Re: tds_fdw binary column  (Adrian Klaver <adrian.klaver@aklaver.com>)
List pgsql-general
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Hello,

I've an issue with foreign table using tds_fdw from PostgreSQL 10 to Sybase ASE 15.7.

The issue is, that primary key, which I have to use for my predicate is in Sybase data type binary.

Foreign table maps ID column from Sybase binary to PostgreSQL BYTEA.

Simple select is smooth:
[local]:5432 postgres@postgres:7650
=# select branch_id from ase.tds_tbl limit 1;
NOTICE:  tds_fdw: Query executed correctly
NOTICE:  tds_fdw: Getting results
┌────────────────────┐
│     branch_id      │
├────────────────────┤
│ \x000246000944242d │
└────────────────────┘
(1 row)

Whereas select using the ID fails:

[local]:5432 postgres@postgres:7650
=# select * from ase. tds_tbl where branch_id = E'\\x000246000944242d'::bytea;
ERROR:  DB-Library error: DB #: 102, DB Msg: General SQL Server error: Check messages from the SQL Server, OS #: -1, OS Msg: , Level: 15
Time: 0.213 ms

Thanks for any hints.
Kind regards Ales Zeleny

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