On 11/6/17 05:36, Sachin Kotwal wrote:
> Is there any special reason to keep column names as usesysid
> and usename instead of usersysid and username in below system View?
The reason to *keep* them is compatibility. The reason they are like
that to start with is because that is the naming pattern used in the
system catalogs: 3 letters indicating the catalog, plus additional
letters or words. It is useful to use the same name in views such as
pg_stat_replication, so you can easily join different views and catalogs.
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Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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