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	<title>select * from depesz; &#187; statistics</title>
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		<title>Waiting for 9.2 &#8211; temporary file stats per database</title>
		<link>http://www.depesz.com/2012/02/07/waiting-for-9-2-temporary-file-stats-per-database/</link>
		<comments>http://www.depesz.com/2012/02/07/waiting-for-9-2-temporary-file-stats-per-database/#comments</comments>
		<pubDate>Tue, 07 Feb 2012 13:35:12 +0000</pubDate>
		<dc:creator>depesz</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[charts]]></category>
		<category><![CDATA[log_temp_files]]></category>
		<category><![CDATA[pg92]]></category>
		<category><![CDATA[postgresql]]></category>
		<category><![CDATA[statistics]]></category>
		<category><![CDATA[stats]]></category>
		<category><![CDATA[temp]]></category>
		<category><![CDATA[temporary]]></category>
		<category><![CDATA[trends]]></category>

		<guid isPermaLink="false">http://www.depesz.com/?p=2405</guid>
		<description><![CDATA[On 26th of January, Magnus Hagander committed patch: Add counters for number and size of temporary files used for spill-to-disk queries for each database to the pg_stat_database view. &#160; Tomas Vondra, review by Magnus Hagander As you perhaps know certain operations in PostgreSQL can create temporary files. I am not talking about temporary tables &#8211; [...]]]></description>
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		<title>explain.depesz.com &#8211; new feature and some new stats</title>
		<link>http://www.depesz.com/2011/06/11/explain-depesz-com-new-feature-and-some-new-stats/</link>
		<comments>http://www.depesz.com/2011/06/11/explain-depesz-com-new-feature-and-some-new-stats/#comments</comments>
		<pubDate>Sat, 11 Jun 2011 03:19:27 +0000</pubDate>
		<dc:creator>depesz</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[anonymization]]></category>
		<category><![CDATA[charts]]></category>
		<category><![CDATA[explain]]></category>
		<category><![CDATA[explain.depesz.com]]></category>
		<category><![CDATA[postgresql]]></category>
		<category><![CDATA[statistics]]></category>
		<category><![CDATA[stats]]></category>

		<guid isPermaLink="false">http://www.depesz.com/?p=2180</guid>
		<description><![CDATA[First of all, as of today, I added new feature, called anonymization. It is for all of the people who are afraid that their plans contain information that they don&#8217;t want to (or can&#8217;t) share on the internet. It works like this: Started with simple query: SELECT n.nspname AS &#34;Schema&#34;, p.proname AS &#34;Name&#34;, pg_catalog.pg_get_function_result&#40;p.oid&#41; AS [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Waiting for 9.1 &#8211; stats reset tracking</title>
		<link>http://www.depesz.com/2011/03/02/waiting-for-9-1-stats-reset-tracking/</link>
		<comments>http://www.depesz.com/2011/03/02/waiting-for-9-1-stats-reset-tracking/#comments</comments>
		<pubDate>Wed, 02 Mar 2011 13:37:15 +0000</pubDate>
		<dc:creator>depesz</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[pg91]]></category>
		<category><![CDATA[postgresql]]></category>
		<category><![CDATA[reset]]></category>
		<category><![CDATA[statistics]]></category>
		<category><![CDATA[stats]]></category>
		<category><![CDATA[tracking]]></category>

		<guid isPermaLink="false">http://www.depesz.com/?p=2111</guid>
		<description><![CDATA[On 10th of February, Magnus Hagander committed patch: Track last time for statistics reset on databases and bgwriter &#160; Tracks one counter for each database, which is reset whenever the statistics for any individual object inside the database is reset, and one counter for the background writer. &#160; Tomas Vondra, reviewed by Greg Smith PostgreSQL [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Waiting for 8.5 &#8211; hinting for number of distinct values</title>
		<link>http://www.depesz.com/2009/08/12/waiting-for-8-5-hinting-for-number-of-distinct-values/</link>
		<comments>http://www.depesz.com/2009/08/12/waiting-for-8-5-hinting-for-number-of-distinct-values/#comments</comments>
		<pubDate>Wed, 12 Aug 2009 14:45:28 +0000</pubDate>
		<dc:creator>depesz</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[analyze]]></category>
		<category><![CDATA[distinct]]></category>
		<category><![CDATA[pg85]]></category>
		<category><![CDATA[pg90]]></category>
		<category><![CDATA[planner]]></category>
		<category><![CDATA[postgresql]]></category>
		<category><![CDATA[statistics]]></category>

		<guid isPermaLink="false">http://www.depesz.com/?p=1477</guid>
		<description><![CDATA[Robert Haas wrote, and Tom Lane committed (on 2nd of August) patch which adds interesting capability: Log Message: ----------- Add ALTER TABLE ... ALTER COLUMN ... SET STATISTICS DISTINCT &#160; Robert Haas Log message is rather terse, so what does it exactly do? To plan query for execution PostgreSQL has to know some basic statistics [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Waiting for 8.4 &#8211; function stats</title>
		<link>http://www.depesz.com/2008/05/15/waiting-for-84-function-stats/</link>
		<comments>http://www.depesz.com/2008/05/15/waiting-for-84-function-stats/#comments</comments>
		<pubDate>Thu, 15 May 2008 15:33:36 +0000</pubDate>
		<dc:creator>depesz</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[functions]]></category>
		<category><![CDATA[pg84]]></category>
		<category><![CDATA[pg_stat_user_functions]]></category>
		<category><![CDATA[postgresql]]></category>
		<category><![CDATA[profiling]]></category>
		<category><![CDATA[statistics]]></category>
		<category><![CDATA[track_functions]]></category>

		<guid isPermaLink="false">http://www.depesz.com/?p=1206</guid>
		<description><![CDATA[Today another great patch, committed by Tom Lane. This patch was written by Martin Pihlak (with some edits by Tom). Commit log: Add support for tracking call counts and elapsed runtime for user-defined functions. Note that because this patch changes FmgrInfo, any external C functions you might be testing with 8.4 will need to be [...]]]></description>
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		<slash:comments>8</slash:comments>
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