Hi, *I noticed pg_basebackup failure when default_table_access_method option is set.*
*Test steps:* Step 1: Init database ./initdb -D data Step 2: Start Server ./postgres -D data & Step 3: Set Guc option export PGOPTIONS='-c default_table_access_method=zheap' Step 4: Peform backup /pg_basebackup -D backup -p 5432 --no-sync 2019-06-05 20:35:04.088 IST [11601] FATAL: cannot read pg_class without having selected a database pg_basebackup: error: could not connect to server: FATAL: cannot read pg_class without having selected a database *Reason why it is failing:* pg_basebackup does not use any database to connect to server as it backs up the whole data instance. As the option default_table_access_method is set. It tries to validate this option, but while validating the option in ScanPgRelation function: if (!OidIsValid(MyDatabaseId)) elog(FATAL, "cannot read pg_class without having selected a database"); Here as pg_basebackup uses no database the command fails. Fix: The patch has the fix for the above issue: Let me know your opinion on this. -- Regards, vignesh EnterpriseDB: http://www.enterprisedb.com
0001-pg-backup-guc-option-validation-failure.patch
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