Log in to SQL Shell (psql) after Postgresql is installed, and report FATAL: password authentication failed for user "postgres"
tags: Programming postgresql
problem:
After installing the Postgresql database, log in to the SQL Shell (psql) and report FATAL: password authentication failed for user "postgres".
the reason:
It is mainly caused by the user password authentication method. After the Postgresql database is installed, the md5 password encryption authentication method is adopted by default.
Solution:
(1) Open the data folder under the Postgresql installation directory, find and open the pg_hba.conf file.
(2) As shown in the figure below, modify the authentication method, change all md5 to trust, and then save.
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