PostgreSQL: Difference between revisions
imported>H7x4 m Add article to Database category |
imported>Onny Add troubleshooting section, how to fix collation version mismatch |
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== | == Troubleshooting == | ||
=== Connection rejected with "Role does not exist" === | === Connection rejected with "Role does not exist" === | ||
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You are trying to login as a DB user ("postgres" in this example) for which your current system user ("root" in this example) has no permission to switch to. Check your "user name map" in the <code>identMap</code> section. | You are trying to login as a DB user ("postgres" in this example) for which your current system user ("root" in this example) has no permission to switch to. Check your "user name map" in the <code>identMap</code> section. | ||
=== database "XXX" has a collation version mismatch === | |||
The complete error which appears in the system log might look similar to this | |||
<syntaxhighlight> | |||
WARNING: database "outline" has a collation version mismatch | |||
DETAIL: The database was created using collation version 2.35, but the operating system provides version 2.38. | |||
HINT: Rebuild all objects in this database that use the default collation and run ALTER DATABASE outline REFRESH COLLATION VERSION, or build PostgreSQL with the right library version. | |||
</syntaxhighlight> | |||
To fix it, run following commands in the psql console. Replace the database name <code>outline</code> with the name of the database which you want to migrate | |||
<syntaxhighlight> | |||
sudo -u postgres psql | |||
postgres=# \c outline; | |||
outline=# REINDEX DATABASE outline; | |||
outline=# ALTER DATABASE outline REFRESH COLLATION VERSION; | |||
</syntaxhighlight> | |||
== See also == | == See also == | ||