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Tag: transactions

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Here you can find all blog posts about the Tag: transactions. You can go back to all blog posts or take a look into our other categories & tags.

Be prepared for prepared transactions

by Laurenz Albe | 12.2018
Prepared transactions are disabled in PostgreSQL by default, since the parameter max_prepared_transactions has the default value 0. You don't need […]

What's in an xmax?

by Laurenz Albe | 04.2018
xmax is a PostgreSQL system column that is used to implement Multiversion Concurrency Control (MVCC). The documentation is somewhat terse: […]

idle_in_transaction_session_timeout: Terminating idle transactions in PostgreSQL

by Hans-Jürgen Schönig | 04.2018
Long PostgreSQL transactions can cause table bloat. idle_in_transaction_session_timeout limits the duration of a transaction to prevent bloat

Improving transaction latency by moving indexes to faster media

by CYBERTEC Guest | 03.2018
To improve PostgreSQL transaction latency for OLTP systems a good trick is to move indexes of busy tables to fast SSD media.

New features for sequences: gains and pitfalls

by Laurenz Albe | 02.2018
About sequences Sequences are used to generate artificial numeric primary key columns for tables. A sequence provides a “new ID” […]

walbouncer: Filtering the transaction log

by Hans-Jürgen Schönig | 10.2014
You might not want to replicate all data to your standbys. walbouncer can filter the transaction log, & replicate only the data needed.

Bypassing the transaction log

by Hans-Jürgen Schönig | 04.2014
When data is changed generally the change must be written to the xlog before it is written to the underlying table.

Transactional DDLs – a message to non-PostgreSQL users

by Hans-Jürgen Schönig | 06.2013
In this blog we will talk about transactional DDL's in PostgreSQL vs other database systems. Find out more information.
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