index 5815fa44710f1a1fea73aa073cb22f5016dd33bf..a0150e5c48dce5cacee304438560c125a4a91921 100644 (file)
</para>
</glossdef>
</glossentry>
+ <glossentry id="glossary-incremental-backup">
+ <glossterm>Incremental backup</glossterm>
+ <glossdef>
+ <para>
+ A special <glossterm linkend="glossary-basebackup">base backup</glossterm>
+ that for some files may contain only those pages that were modified since
+ a previous backup, as opposed to the full contents of every file. Like
+ base backups, it is generated by the tool <xref linkend="app-pgbasebackup"/>.
+ </para>
+ <para>
+ To restore incremental backups the tool <xref linkend="app-pgcombinebackup"/>
+ is used, which combines incremental backups with a base backup and
+ <glossterm linkend="glossary-wal">WAL</glossterm> to restore a
+ <glossterm linkend="glossary-db-cluster">database cluster</glossterm> to
+ a consistent state.
+ </para>
+ <para>
+ For more information, see <xref linkend="backup-incremental-backup"/>.
+ </para>
+ </glossdef>
+ </glossentry>
<glossentry id="glossary-insert">
<glossterm>Insert</glossterm>
</glossdef>
</glossentry>
+ <glossentry id="glossary-wal-summarizer">
+ <glossterm>WAL summarizer (process)</glossterm>
+ <glossdef>
+ <para>
+ A special <glossterm linkend="glossary-backend">backend process</glossterm>
+ that summarizes WAL data for
+ <glossterm linkend="glossary-incremental-backup">incremental backups</glossterm>.
+ </para>
+ <para>
+ For more information, see <xref linkend="runtime-config-wal-summarization"/>.
+ </para>
+ </glossdef>
+ </glossentry>
+
<glossentry id="glossary-wal-writer">
<glossterm>WAL writer (process)</glossterm>
<glossdef>
index b804eb8b5efa5a7d2d43efce5ff5fb43c21cd62f..6e74138a69aeca0f1d556fd8ea79246e3728a197 100644 (file)
@@ -999,7 +999,8 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<literal>client backend</literal>, <literal>checkpointer</literal>,
<literal>archiver</literal>, <literal>standalone backend</literal>,
<literal>startup</literal>, <literal>walreceiver</literal>,
- <literal>walsender</literal> and <literal>walwriter</literal>.
+ <literal>walsender</literal>, <literal>walwriter</literal> and
+ <literal>walsummarizer</literal>.
In addition, background workers registered by extensions may have
additional types.
</para></entry>