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GUACAMOLE-1573: Slow selection of users on scale on Postgres #711

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GUACAMOLE-1573: Slow selection of users on scale on Postgres #711

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21 changes: 15 additions & 6 deletions ...uth-jdbc-postgresql/src/main/resources/org/apache/guacamole/auth/jdbc/user/UserMapper.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -126,10 +126,13 @@
email_address,
organization,
organizational_role,
MAX(start_date) AS last_active
(SELECT start_date
FROM guacamole_user_history
WHERE user_id = guacamole_user.user_id
ORDER BY start_date desc
LIMIT 1) AS last_active
FROM guacamole_user
JOIN guacamole_entity ON guacamole_user.entity_id = guacamole_entity.entity_id
LEFT JOIN guacamole_user_history ON guacamole_user_history.user_id = guacamole_user.user_id
WHERE guacamole_entity.name IN
<foreach collection="identifiers" item="identifier"
open="(" separator="," close=")">
Expand Down Expand Up @@ -176,10 +179,13 @@
email_address,
organization,
organizational_role,
MAX(start_date) AS last_active
(SELECT start_date
FROM guacamole_user_history
WHERE user_id = guacamole_user.user_id
ORDER BY start_date desc
LIMIT 1) AS last_active
FROM guacamole_user
JOIN guacamole_entity ON guacamole_user.entity_id = guacamole_entity.entity_id
LEFT JOIN guacamole_user_history ON guacamole_user_history.user_id = guacamole_user.user_id
WHERE guacamole_entity.name IN
<foreach collection="identifiers" item="identifier"
open="(" separator="," close=")">
Expand Down Expand Up @@ -238,10 +244,13 @@
email_address,
organization,
organizational_role,
MAX(start_date) AS last_active
(SELECT start_date
FROM guacamole_user_history
WHERE user_id = guacamole_user.user_id
ORDER BY start_date desc
LIMIT 1) AS last_active
FROM guacamole_user
JOIN guacamole_entity ON guacamole_user.entity_id = guacamole_entity.entity_id
LEFT JOIN guacamole_user_history ON guacamole_user_history.user_id = guacamole_user.user_id
WHERE
guacamole_entity.name = #{username,jdbcType=VARCHAR}
AND guacamole_entity.type = 'USER'::guacamole_entity_type
Expand Down