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twolines
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pg_dump error

Trying to backup postgresql db:

# pg_dump -U root dbname -f backup.sql
pg_dump: query to obtain list of casts failed: ERROR:  invalid page header in block 1 of relation "pg_cast"
PostgreSQLLinux

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wesly_chen

8/22/2022 - Mon
wesly_chen

Try re-index the database:
reindexdb -s dbname
twolines

ASKER
problem with reindexing:

dbname=# REINDEX TABLE pg_cast;
ERROR:  invalid page header in block 1 of relation "pg_cast"
while, for example:
dbname=# REINDEX TABLE pg_depend;
REINDEX
wesly_chen

Sounds like your database has been corrupted due to hardware issue.
Please check the system log of your DB server for the clue (error messages) first.
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rwheeler23
ASKER CERTIFIED SOLUTION
wesly_chen

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