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March 15 – 17 , 2017

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Talks

Talks archive

PgConf.Russia 2017
  • Mikhail Tyurin
    Mikhail Tyurin Independent entrepreneur in the field of data technology and predictive analytics

    < Query failed: ERROR: deadlock detected
    < DETAIL: Process 17371 waits for ShareLock on transaction 102733872; Blocked by process.
    < Process 10414 waits for ShareLock on transaction 102733874; Blocked by process 17371.
    

    Such "unpleasant" messages from the server can seriously puzzle the developer. When working with locks, in particular, with transactions in general, it is necessary to take into account the features of the implementation of client libraries, which can cause the above exception.

    In the short talk, the mechanics of the interaction of locks will be explained, main attention being paid to causes of deadlocks. References to the relevant documentation pages will be given. A technique of "bypassing" this problem of concurrent data access will be described and illustrated with some generalized examples from practice are shown. The talk will be interesting to database developers and administrators as well as the client-side application developers.

  • Roland Sonnenschein
    Roland Sonnenschein Hesotech GmbH

    Often it is enforced by the customer or even by law, to document the circumstances of the production of parts or lots. This talk is about the automated generation and storage of the corresponding administrative data and their correlation to measurements. Administrative data are entities like suppliers batch, article, serial number or production date. They are often to be exchanged with ERP systems.

  • Dmitry Belyavskiy
    Dmitry Belyavskiy Technical Center of Internet

    Real-word data often need cryptographycal protection. The presentation describes typical problems that can be solved using cryptographycal methods and the right ways to use cryptography with RDBMS. The newest solutions suggested for usage with PostgreSQL are described.

    VIDEO

  • Sergey Mirvoda
    Sergey Mirvoda Octonica, UrFU

    Experience we've got after 5 years of developing, deploying and improving BI system http://colibri365.ru used in government. I would talk about government IT reality and our way over it. Postgres performance improvements, using of latest features, overwriting of user generated queries to help query optimizer and other tweaks and hacks to tackle limited hardware problems. These lead us to number of computer science papers and (now committed) patches to Postgres (see Andrey Borodin talks for details).

    VIDEO

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