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4 changed files with 192 additions and 120 deletions
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@ -15911,40 +15911,23 @@ more CPU and RAM, and make use of <a href="usage/administration/../../workers.ht
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to make use of multiple CPU cores / multiple machines for your homeserver.</p>
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<div style="break-before: page; page-break-before: always;"></div><h2 id="some-useful-sql-queries-for-synapse-admins"><a class="header" href="#some-useful-sql-queries-for-synapse-admins">Some useful SQL queries for Synapse Admins</a></h2>
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<h2 id="size-of-full-matrix-db"><a class="header" href="#size-of-full-matrix-db">Size of full matrix db</a></h2>
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<p><code>SELECT pg_size_pretty( pg_database_size( 'matrix' ) );</code></p>
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<pre><code class="language-sql">SELECT pg_size_pretty( pg_database_size( 'matrix' ) );
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</code></pre>
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<h3 id="result-example"><a class="header" href="#result-example">Result example:</a></h3>
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<pre><code>pg_size_pretty
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----------------
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6420 MB
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(1 row)
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</code></pre>
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<h2 id="show-top-20-larger-rooms-by-state-events-count"><a class="header" href="#show-top-20-larger-rooms-by-state-events-count">Show top 20 larger rooms by state events count</a></h2>
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<pre><code class="language-sql">SELECT r.name, s.room_id, s.current_state_events
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FROM room_stats_current s
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LEFT JOIN room_stats_state r USING (room_id)
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ORDER BY current_state_events DESC
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LIMIT 20;
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</code></pre>
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<p>and by state_group_events count:</p>
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<pre><code class="language-sql">SELECT rss.name, s.room_id, count(s.room_id) FROM state_groups_state s
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LEFT JOIN room_stats_state rss USING (room_id)
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GROUP BY s.room_id, rss.name
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ORDER BY count(s.room_id) DESC
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LIMIT 20;
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</code></pre>
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<p>plus same, but with join removed for performance reasons:</p>
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<pre><code class="language-sql">SELECT s.room_id, count(s.room_id) FROM state_groups_state s
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GROUP BY s.room_id
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ORDER BY count(s.room_id) DESC
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LIMIT 20;
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</code></pre>
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<h2 id="show-top-20-larger-tables-by-row-count"><a class="header" href="#show-top-20-larger-tables-by-row-count">Show top 20 larger tables by row count</a></h2>
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<pre><code class="language-sql">SELECT relname, n_live_tup as rows
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FROM pg_stat_user_tables
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<pre><code class="language-sql">SELECT relname, n_live_tup AS "rows"
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FROM pg_stat_user_tables
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ORDER BY n_live_tup DESC
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LIMIT 20;
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</code></pre>
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<p>This query is quick, but may be very approximate, for exact number of rows use <code>SELECT COUNT(*) FROM <table_name></code>.</p>
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<p>This query is quick, but may be very approximate, for exact number of rows use:</p>
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<pre><code class="language-sql">SELECT COUNT(*) FROM <table_name>;
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</code></pre>
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<h3 id="result-example-1"><a class="header" href="#result-example-1">Result example:</a></h3>
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<pre><code>state_groups_state - 161687170
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event_auth - 8584785
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@ -15967,37 +15950,15 @@ users_in_public_rooms - 364059
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device_lists_stream - 326903
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user_directory_search - 316433
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</code></pre>
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<h2 id="show-top-20-rooms-by-new-events-count-in-last-1-day"><a class="header" href="#show-top-20-rooms-by-new-events-count-in-last-1-day">Show top 20 rooms by new events count in last 1 day:</a></h2>
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<pre><code class="language-sql">SELECT e.room_id, r.name, COUNT(e.event_id) cnt FROM events e
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LEFT JOIN room_stats_state r USING (room_id)
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WHERE e.origin_server_ts >= DATE_PART('epoch', NOW() - INTERVAL '1 day') * 1000 GROUP BY e.room_id, r.name ORDER BY cnt DESC LIMIT 20;
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</code></pre>
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<h2 id="show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month"><a class="header" href="#show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month">Show top 20 users on homeserver by sent events (messages) at last month:</a></h2>
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<pre><code class="language-sql">SELECT user_id, SUM(total_events)
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FROM user_stats_historical
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WHERE TO_TIMESTAMP(end_ts/1000) AT TIME ZONE 'UTC' > date_trunc('day', now() - interval '1 month')
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GROUP BY user_id
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ORDER BY SUM(total_events) DESC
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LIMIT 20;
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</code></pre>
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<h2 id="show-last-100-messages-from-needed-user-with-room-names"><a class="header" href="#show-last-100-messages-from-needed-user-with-room-names">Show last 100 messages from needed user, with room names:</a></h2>
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<pre><code class="language-sql">SELECT e.room_id, r.name, e.event_id, e.type, e.content, j.json FROM events e
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LEFT JOIN event_json j USING (room_id)
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LEFT JOIN room_stats_state r USING (room_id)
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WHERE sender = '@LOGIN:example.com'
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AND e.type = 'm.room.message'
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ORDER BY stream_ordering DESC
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LIMIT 100;
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</code></pre>
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<h2 id="show-top-20-larger-tables-by-storage-size"><a class="header" href="#show-top-20-larger-tables-by-storage-size">Show top 20 larger tables by storage size</a></h2>
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<pre><code class="language-sql">SELECT nspname || '.' || relname AS "relation",
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pg_size_pretty(pg_total_relation_size(C.oid)) AS "total_size"
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FROM pg_class C
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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pg_size_pretty(pg_total_relation_size(c.oid)) AS "total_size"
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FROM pg_class c
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LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
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WHERE nspname NOT IN ('pg_catalog', 'information_schema')
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AND C.relkind <> 'i'
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AND c.relkind <> 'i'
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AND nspname !~ '^pg_toast'
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ORDER BY pg_total_relation_size(C.oid) DESC
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ORDER BY pg_total_relation_size(c.oid) DESC
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LIMIT 20;
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</code></pre>
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<h3 id="result-example-2"><a class="header" href="#result-example-2">Result example:</a></h3>
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@ -16022,8 +15983,75 @@ public.state_groups - 160 MB
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public.device_lists_remote_cache - 124 MB
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public.state_group_edges - 122 MB
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</code></pre>
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<h2 id="show-top-20-larger-rooms-by-state-events-count"><a class="header" href="#show-top-20-larger-rooms-by-state-events-count">Show top 20 larger rooms by state events count</a></h2>
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<p>You get the same information when you use the
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<a href="usage/administration/../../admin_api/rooms.html#list-room-api">admin API</a>
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and set parameter <code>order_by=state_events</code>.</p>
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<pre><code class="language-sql">SELECT r.name, s.room_id, s.current_state_events
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FROM room_stats_current s
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LEFT JOIN room_stats_state r USING (room_id)
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ORDER BY current_state_events DESC
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LIMIT 20;
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</code></pre>
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<p>and by state_group_events count:</p>
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<pre><code class="language-sql">SELECT rss.name, s.room_id, COUNT(s.room_id)
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FROM state_groups_state s
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LEFT JOIN room_stats_state rss USING (room_id)
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GROUP BY s.room_id, rss.name
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ORDER BY COUNT(s.room_id) DESC
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LIMIT 20;
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</code></pre>
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<p>plus same, but with join removed for performance reasons:</p>
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<pre><code class="language-sql">SELECT s.room_id, COUNT(s.room_id)
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FROM state_groups_state s
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GROUP BY s.room_id
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ORDER BY COUNT(s.room_id) DESC
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LIMIT 20;
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</code></pre>
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<h2 id="show-top-20-rooms-by-new-events-count-in-last-1-day"><a class="header" href="#show-top-20-rooms-by-new-events-count-in-last-1-day">Show top 20 rooms by new events count in last 1 day:</a></h2>
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<pre><code class="language-sql">SELECT e.room_id, r.name, COUNT(e.event_id) cnt
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FROM events e
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LEFT JOIN room_stats_state r USING (room_id)
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WHERE e.origin_server_ts >= DATE_PART('epoch', NOW() - INTERVAL '1 day') * 1000
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GROUP BY e.room_id, r.name
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ORDER BY cnt DESC
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LIMIT 20;
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</code></pre>
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<h2 id="show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month"><a class="header" href="#show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month">Show top 20 users on homeserver by sent events (messages) at last month:</a></h2>
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<p>Caution. This query does not use any indexes, can be slow and create load on the database.</p>
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<pre><code class="language-sql">SELECT COUNT(*), sender
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FROM events
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WHERE (type = 'm.room.encrypted' OR type = 'm.room.message')
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AND origin_server_ts >= DATE_PART('epoch', NOW() - INTERVAL '1 month') * 1000
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GROUP BY sender
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ORDER BY COUNT(*) DESC
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LIMIT 20;
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</code></pre>
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<h2 id="show-last-100-messages-from-needed-user-with-room-names"><a class="header" href="#show-last-100-messages-from-needed-user-with-room-names">Show last 100 messages from needed user, with room names:</a></h2>
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<pre><code class="language-sql">SELECT e.room_id, r.name, e.event_id, e.type, e.content, j.json
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FROM events e
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LEFT JOIN event_json j USING (room_id)
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LEFT JOIN room_stats_state r USING (room_id)
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WHERE sender = '@LOGIN:example.com'
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AND e.type = 'm.room.message'
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ORDER BY stream_ordering DESC
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LIMIT 100;
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</code></pre>
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<h2 id="show-rooms-with-names-sorted-by-events-in-this-rooms"><a class="header" href="#show-rooms-with-names-sorted-by-events-in-this-rooms">Show rooms with names, sorted by events in this rooms</a></h2>
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<p><code>echo "select event_json.room_id,room_stats_state.name from event_json,room_stats_state where room_stats_state.room_id=event_json.room_id" | psql synapse | sort | uniq -c | sort -n</code></p>
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<p><strong>Sort and order with bash</strong></p>
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<pre><code class="language-bash">echo "SELECT event_json.room_id, room_stats_state.name FROM event_json, room_stats_state \
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WHERE room_stats_state.room_id = event_json.room_id" | psql -d synapse -h localhost -U synapse_user -t \
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| sort | uniq -c | sort -n
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</code></pre>
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<p>Documentation for <code>psql</code> command line parameters: https://www.postgresql.org/docs/current/app-psql.html</p>
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<p><strong>Sort and order with SQL</strong></p>
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<pre><code class="language-sql">SELECT COUNT(*), event_json.room_id, room_stats_state.name
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FROM event_json, room_stats_state
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WHERE room_stats_state.room_id = event_json.room_id
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GROUP BY event_json.room_id, room_stats_state.name
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ORDER BY COUNT(*) DESC
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LIMIT 50;
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</code></pre>
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<h3 id="result-example-3"><a class="header" href="#result-example-3">Result example:</a></h3>
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<pre><code> 9459 !FPUfgzXYWTKgIrwKxW:matrix.org | This Week in Matrix
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9459 !FPUfgzXYWTKgIrwKxW:matrix.org | This Week in Matrix (TWIM)
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@ -16035,13 +16063,21 @@ public.state_group_edges - 122 MB
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43601 !iNmaIQExDMeqdITdHH:matrix.org | Riot Web/Desktop
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</code></pre>
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<h2 id="lookup-room-state-info-by-list-of-room_id"><a class="header" href="#lookup-room-state-info-by-list-of-room_id">Lookup room state info by list of room_id</a></h2>
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<pre><code class="language-sql">SELECT rss.room_id, rss.name, rss.canonical_alias, rss.topic, rss.encryption, rsc.joined_members, rsc.local_users_in_room, rss.join_rules
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FROM room_stats_state rss
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LEFT JOIN room_stats_current rsc USING (room_id)
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WHERE room_id IN (WHERE room_id IN (
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'!OGEhHVWSdvArJzumhm:matrix.org',
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'!YTvKGNlinIzlkMTVRl:matrix.org'
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)
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<p>You get the same information when you use the
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<a href="usage/administration/../../admin_api/rooms.html#room-details-api">admin API</a>.</p>
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<pre><code class="language-sql">SELECT rss.room_id, rss.name, rss.canonical_alias, rss.topic, rss.encryption,
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rsc.joined_members, rsc.local_users_in_room, rss.join_rules
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FROM room_stats_state rss
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LEFT JOIN room_stats_current rsc USING (room_id)
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WHERE room_id IN ( WHERE room_id IN (
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'!OGEhHVWSdvArJzumhm:matrix.org',
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'!YTvKGNlinIzlkMTVRl:matrix.org'
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);
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</code></pre>
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<h2 id="show-users-and-devices-that-have-not-been-online-for-a-while"><a class="header" href="#show-users-and-devices-that-have-not-been-online-for-a-while">Show users and devices that have not been online for a while</a></h2>
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<pre><code class="language-sql">SELECT user_id, device_id, user_agent, TO_TIMESTAMP(last_seen / 1000) AS "last_seen"
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FROM devices
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WHERE last_seen < DATE_PART('epoch', NOW() - INTERVAL '3 month') * 1000;
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</code></pre>
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<div style="break-before: page; page-break-before: always;"></div><p>This blog post by Victor Berger explains how to use many of the tools listed on this page: https://levans.fr/shrink-synapse-database.html</p>
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<h1 id="list-of-useful-tools-and-scripts-for-maintenance-synapse-database"><a class="header" href="#list-of-useful-tools-and-scripts-for-maintenance-synapse-database">List of useful tools and scripts for maintenance Synapse database:</a></h1>
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|
|
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File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
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|
@ -148,40 +148,23 @@
|
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|
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<h2 id="some-useful-sql-queries-for-synapse-admins"><a class="header" href="#some-useful-sql-queries-for-synapse-admins">Some useful SQL queries for Synapse Admins</a></h2>
|
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<h2 id="size-of-full-matrix-db"><a class="header" href="#size-of-full-matrix-db">Size of full matrix db</a></h2>
|
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<p><code>SELECT pg_size_pretty( pg_database_size( 'matrix' ) );</code></p>
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<pre><code class="language-sql">SELECT pg_size_pretty( pg_database_size( 'matrix' ) );
|
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</code></pre>
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<h3 id="result-example"><a class="header" href="#result-example">Result example:</a></h3>
|
||||
<pre><code>pg_size_pretty
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----------------
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6420 MB
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(1 row)
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||||
</code></pre>
|
||||
<h2 id="show-top-20-larger-rooms-by-state-events-count"><a class="header" href="#show-top-20-larger-rooms-by-state-events-count">Show top 20 larger rooms by state events count</a></h2>
|
||||
<pre><code class="language-sql">SELECT r.name, s.room_id, s.current_state_events
|
||||
FROM room_stats_current s
|
||||
LEFT JOIN room_stats_state r USING (room_id)
|
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ORDER BY current_state_events DESC
|
||||
LIMIT 20;
|
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</code></pre>
|
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<p>and by state_group_events count:</p>
|
||||
<pre><code class="language-sql">SELECT rss.name, s.room_id, count(s.room_id) FROM state_groups_state s
|
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LEFT JOIN room_stats_state rss USING (room_id)
|
||||
GROUP BY s.room_id, rss.name
|
||||
ORDER BY count(s.room_id) DESC
|
||||
LIMIT 20;
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||||
</code></pre>
|
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<p>plus same, but with join removed for performance reasons:</p>
|
||||
<pre><code class="language-sql">SELECT s.room_id, count(s.room_id) FROM state_groups_state s
|
||||
GROUP BY s.room_id
|
||||
ORDER BY count(s.room_id) DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<h2 id="show-top-20-larger-tables-by-row-count"><a class="header" href="#show-top-20-larger-tables-by-row-count">Show top 20 larger tables by row count</a></h2>
|
||||
<pre><code class="language-sql">SELECT relname, n_live_tup as rows
|
||||
FROM pg_stat_user_tables
|
||||
<pre><code class="language-sql">SELECT relname, n_live_tup AS "rows"
|
||||
FROM pg_stat_user_tables
|
||||
ORDER BY n_live_tup DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<p>This query is quick, but may be very approximate, for exact number of rows use <code>SELECT COUNT(*) FROM <table_name></code>.</p>
|
||||
<p>This query is quick, but may be very approximate, for exact number of rows use:</p>
|
||||
<pre><code class="language-sql">SELECT COUNT(*) FROM <table_name>;
|
||||
</code></pre>
|
||||
<h3 id="result-example-1"><a class="header" href="#result-example-1">Result example:</a></h3>
|
||||
<pre><code>state_groups_state - 161687170
|
||||
event_auth - 8584785
|
||||
|
|
@ -204,37 +187,15 @@ users_in_public_rooms - 364059
|
|||
device_lists_stream - 326903
|
||||
user_directory_search - 316433
|
||||
</code></pre>
|
||||
<h2 id="show-top-20-rooms-by-new-events-count-in-last-1-day"><a class="header" href="#show-top-20-rooms-by-new-events-count-in-last-1-day">Show top 20 rooms by new events count in last 1 day:</a></h2>
|
||||
<pre><code class="language-sql">SELECT e.room_id, r.name, COUNT(e.event_id) cnt FROM events e
|
||||
LEFT JOIN room_stats_state r USING (room_id)
|
||||
WHERE e.origin_server_ts >= DATE_PART('epoch', NOW() - INTERVAL '1 day') * 1000 GROUP BY e.room_id, r.name ORDER BY cnt DESC LIMIT 20;
|
||||
</code></pre>
|
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<h2 id="show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month"><a class="header" href="#show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month">Show top 20 users on homeserver by sent events (messages) at last month:</a></h2>
|
||||
<pre><code class="language-sql">SELECT user_id, SUM(total_events)
|
||||
FROM user_stats_historical
|
||||
WHERE TO_TIMESTAMP(end_ts/1000) AT TIME ZONE 'UTC' > date_trunc('day', now() - interval '1 month')
|
||||
GROUP BY user_id
|
||||
ORDER BY SUM(total_events) DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
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<h2 id="show-last-100-messages-from-needed-user-with-room-names"><a class="header" href="#show-last-100-messages-from-needed-user-with-room-names">Show last 100 messages from needed user, with room names:</a></h2>
|
||||
<pre><code class="language-sql">SELECT e.room_id, r.name, e.event_id, e.type, e.content, j.json FROM events e
|
||||
LEFT JOIN event_json j USING (room_id)
|
||||
LEFT JOIN room_stats_state r USING (room_id)
|
||||
WHERE sender = '@LOGIN:example.com'
|
||||
AND e.type = 'm.room.message'
|
||||
ORDER BY stream_ordering DESC
|
||||
LIMIT 100;
|
||||
</code></pre>
|
||||
<h2 id="show-top-20-larger-tables-by-storage-size"><a class="header" href="#show-top-20-larger-tables-by-storage-size">Show top 20 larger tables by storage size</a></h2>
|
||||
<pre><code class="language-sql">SELECT nspname || '.' || relname AS "relation",
|
||||
pg_size_pretty(pg_total_relation_size(C.oid)) AS "total_size"
|
||||
FROM pg_class C
|
||||
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
|
||||
pg_size_pretty(pg_total_relation_size(c.oid)) AS "total_size"
|
||||
FROM pg_class c
|
||||
LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
|
||||
WHERE nspname NOT IN ('pg_catalog', 'information_schema')
|
||||
AND C.relkind <> 'i'
|
||||
AND c.relkind <> 'i'
|
||||
AND nspname !~ '^pg_toast'
|
||||
ORDER BY pg_total_relation_size(C.oid) DESC
|
||||
ORDER BY pg_total_relation_size(c.oid) DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<h3 id="result-example-2"><a class="header" href="#result-example-2">Result example:</a></h3>
|
||||
|
|
@ -259,8 +220,75 @@ public.state_groups - 160 MB
|
|||
public.device_lists_remote_cache - 124 MB
|
||||
public.state_group_edges - 122 MB
|
||||
</code></pre>
|
||||
<h2 id="show-top-20-larger-rooms-by-state-events-count"><a class="header" href="#show-top-20-larger-rooms-by-state-events-count">Show top 20 larger rooms by state events count</a></h2>
|
||||
<p>You get the same information when you use the
|
||||
<a href="../../admin_api/rooms.html#list-room-api">admin API</a>
|
||||
and set parameter <code>order_by=state_events</code>.</p>
|
||||
<pre><code class="language-sql">SELECT r.name, s.room_id, s.current_state_events
|
||||
FROM room_stats_current s
|
||||
LEFT JOIN room_stats_state r USING (room_id)
|
||||
ORDER BY current_state_events DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<p>and by state_group_events count:</p>
|
||||
<pre><code class="language-sql">SELECT rss.name, s.room_id, COUNT(s.room_id)
|
||||
FROM state_groups_state s
|
||||
LEFT JOIN room_stats_state rss USING (room_id)
|
||||
GROUP BY s.room_id, rss.name
|
||||
ORDER BY COUNT(s.room_id) DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<p>plus same, but with join removed for performance reasons:</p>
|
||||
<pre><code class="language-sql">SELECT s.room_id, COUNT(s.room_id)
|
||||
FROM state_groups_state s
|
||||
GROUP BY s.room_id
|
||||
ORDER BY COUNT(s.room_id) DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<h2 id="show-top-20-rooms-by-new-events-count-in-last-1-day"><a class="header" href="#show-top-20-rooms-by-new-events-count-in-last-1-day">Show top 20 rooms by new events count in last 1 day:</a></h2>
|
||||
<pre><code class="language-sql">SELECT e.room_id, r.name, COUNT(e.event_id) cnt
|
||||
FROM events e
|
||||
LEFT JOIN room_stats_state r USING (room_id)
|
||||
WHERE e.origin_server_ts >= DATE_PART('epoch', NOW() - INTERVAL '1 day') * 1000
|
||||
GROUP BY e.room_id, r.name
|
||||
ORDER BY cnt DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<h2 id="show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month"><a class="header" href="#show-top-20-users-on-homeserver-by-sent-events-messages-at-last-month">Show top 20 users on homeserver by sent events (messages) at last month:</a></h2>
|
||||
<p>Caution. This query does not use any indexes, can be slow and create load on the database.</p>
|
||||
<pre><code class="language-sql">SELECT COUNT(*), sender
|
||||
FROM events
|
||||
WHERE (type = 'm.room.encrypted' OR type = 'm.room.message')
|
||||
AND origin_server_ts >= DATE_PART('epoch', NOW() - INTERVAL '1 month') * 1000
|
||||
GROUP BY sender
|
||||
ORDER BY COUNT(*) DESC
|
||||
LIMIT 20;
|
||||
</code></pre>
|
||||
<h2 id="show-last-100-messages-from-needed-user-with-room-names"><a class="header" href="#show-last-100-messages-from-needed-user-with-room-names">Show last 100 messages from needed user, with room names:</a></h2>
|
||||
<pre><code class="language-sql">SELECT e.room_id, r.name, e.event_id, e.type, e.content, j.json
|
||||
FROM events e
|
||||
LEFT JOIN event_json j USING (room_id)
|
||||
LEFT JOIN room_stats_state r USING (room_id)
|
||||
WHERE sender = '@LOGIN:example.com'
|
||||
AND e.type = 'm.room.message'
|
||||
ORDER BY stream_ordering DESC
|
||||
LIMIT 100;
|
||||
</code></pre>
|
||||
<h2 id="show-rooms-with-names-sorted-by-events-in-this-rooms"><a class="header" href="#show-rooms-with-names-sorted-by-events-in-this-rooms">Show rooms with names, sorted by events in this rooms</a></h2>
|
||||
<p><code>echo "select event_json.room_id,room_stats_state.name from event_json,room_stats_state where room_stats_state.room_id=event_json.room_id" | psql synapse | sort | uniq -c | sort -n</code></p>
|
||||
<p><strong>Sort and order with bash</strong></p>
|
||||
<pre><code class="language-bash">echo "SELECT event_json.room_id, room_stats_state.name FROM event_json, room_stats_state \
|
||||
WHERE room_stats_state.room_id = event_json.room_id" | psql -d synapse -h localhost -U synapse_user -t \
|
||||
| sort | uniq -c | sort -n
|
||||
</code></pre>
|
||||
<p>Documentation for <code>psql</code> command line parameters: https://www.postgresql.org/docs/current/app-psql.html</p>
|
||||
<p><strong>Sort and order with SQL</strong></p>
|
||||
<pre><code class="language-sql">SELECT COUNT(*), event_json.room_id, room_stats_state.name
|
||||
FROM event_json, room_stats_state
|
||||
WHERE room_stats_state.room_id = event_json.room_id
|
||||
GROUP BY event_json.room_id, room_stats_state.name
|
||||
ORDER BY COUNT(*) DESC
|
||||
LIMIT 50;
|
||||
</code></pre>
|
||||
<h3 id="result-example-3"><a class="header" href="#result-example-3">Result example:</a></h3>
|
||||
<pre><code> 9459 !FPUfgzXYWTKgIrwKxW:matrix.org | This Week in Matrix
|
||||
9459 !FPUfgzXYWTKgIrwKxW:matrix.org | This Week in Matrix (TWIM)
|
||||
|
|
@ -272,13 +300,21 @@ public.state_group_edges - 122 MB
|
|||
43601 !iNmaIQExDMeqdITdHH:matrix.org | Riot Web/Desktop
|
||||
</code></pre>
|
||||
<h2 id="lookup-room-state-info-by-list-of-room_id"><a class="header" href="#lookup-room-state-info-by-list-of-room_id">Lookup room state info by list of room_id</a></h2>
|
||||
<pre><code class="language-sql">SELECT rss.room_id, rss.name, rss.canonical_alias, rss.topic, rss.encryption, rsc.joined_members, rsc.local_users_in_room, rss.join_rules
|
||||
FROM room_stats_state rss
|
||||
LEFT JOIN room_stats_current rsc USING (room_id)
|
||||
WHERE room_id IN (WHERE room_id IN (
|
||||
'!OGEhHVWSdvArJzumhm:matrix.org',
|
||||
'!YTvKGNlinIzlkMTVRl:matrix.org'
|
||||
)
|
||||
<p>You get the same information when you use the
|
||||
<a href="../../admin_api/rooms.html#room-details-api">admin API</a>.</p>
|
||||
<pre><code class="language-sql">SELECT rss.room_id, rss.name, rss.canonical_alias, rss.topic, rss.encryption,
|
||||
rsc.joined_members, rsc.local_users_in_room, rss.join_rules
|
||||
FROM room_stats_state rss
|
||||
LEFT JOIN room_stats_current rsc USING (room_id)
|
||||
WHERE room_id IN ( WHERE room_id IN (
|
||||
'!OGEhHVWSdvArJzumhm:matrix.org',
|
||||
'!YTvKGNlinIzlkMTVRl:matrix.org'
|
||||
);
|
||||
</code></pre>
|
||||
<h2 id="show-users-and-devices-that-have-not-been-online-for-a-while"><a class="header" href="#show-users-and-devices-that-have-not-been-online-for-a-while">Show users and devices that have not been online for a while</a></h2>
|
||||
<pre><code class="language-sql">SELECT user_id, device_id, user_agent, TO_TIMESTAMP(last_seen / 1000) AS "last_seen"
|
||||
FROM devices
|
||||
WHERE last_seen < DATE_PART('epoch', NOW() - INTERVAL '3 month') * 1000;
|
||||
</code></pre>
|
||||
|
||||
</main>
|
||||
|
|
|
|||
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Reference in a new issue