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Additional modules supplied by the Postgres project but not installed by default.

3
votes
Use the concatenation operator myarray || 9 Details in the manual: https://www.postgresql.org/docs/current/9.1/functions-array.html
modified May 15 '17 by a_horse_with_no_name
1
vote
As the error message says: the standby is read-only you can't run any statements on the standby that change things. If you need the extension on the standby you need to create it on the master
modified Feb 28 '17 by a_horse_with_no_name