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v3 fbclient cannot work with servers older than v2.5 via the remote protocol [CORE4872] #5168

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firebird-issue-importer opened this issue Jul 10, 2015 · 4 comments

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@firebird-issue-importer

Submitted by: @dyemanov

Historically, BLOB IDs were described as blr_quad in remote messages, because older server versions don't understand blr_blob2. v3 fbclient breaks this compatibility by sending blr_blob2 over the wire. ISQL connects fine, SHOW VERSION executes fine, but "select * from rdb$database" throws "error reading data from the connection".

I suppose we could simply revert back to the old behavior, but a more clever approach would be to check the protocol version and use blr_blob2 only if the server is known to understand it. I'm preparing the patch at the moment.

Commits: 1776ee0 FirebirdSQL/fbt-repository@cda2aec

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firebird-issue-importer commented Jul 10, 2015

Modified by: @dyemanov

Component: API / Client Library [ 10040 ]

assignee: Dmitry Yemanov [ dimitr ]

Component: Engine [ 10000 ] =>

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firebird-issue-importer commented Jul 15, 2015

Modified by: @dyemanov

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 3.0 RC 1 [ 10584 ]

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firebird-issue-importer commented Sep 23, 2015

Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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firebird-issue-importer commented May 25, 2016

Modified by: @pavel-zotov

status: Closed [ 6 ] => Closed [ 6 ]

QA Status: No test => Cannot be tested

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