The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/9.5/static/sql-altertable.html
Description:
I see references to a "table rewrite" all over the place, but I cannot find
one single definition on what that actually means.
What does a table rewrite do? Does it drop and recreate the table?
Everywhere I look people describe it with fear and trepedation as if it was
some catastrophically dangerous operation to perform. What is it?