May 2019
Intermediate to advanced
600 pages
20h 46m
English
book
PostgreSQL 11 Administration Cookbook
by Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala, Sheldon Strauch
Content preview from PostgreSQL 11 Administration Cookbook
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Investigating a psql error
Error messages can sometimes be cryptic, and you may be left wondering, Why did this error happen at all?
For this purpose, psql recognizes two variables, VERBOSITY and CONTEXT; valid values are terse, default, or verbose for the former, and never, errors, or always for the latter. A more verbose error message will hopefully specify extra detail, and the context information will be included. Here is an example to show the difference:
postgres=# \set VERBOSITY tersepostgres=# \set CONTEXT neverpostgres=# select * from missingtable;ERROR: relation "missingtable" does not exist at character 15
This is quite a simple error, so we don't actually need the extra detail, but it is nevertheless useful for illustrating the ...
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