I found a minor mistake in the documentation of string functions. http://www.postgresql.org/docs/9.4/static/functions-string.html
In table 9-6 examples and results columns, look at the overlay function,
which has 4 x characters, but overlays 3 characters. Please remove an x.
overlay('T*xxxx*as' placing 'hom' from 2 for 4) Thomas
Please change the call to { *overlay('Txxxas'* ... }
Have a good day, and thanks for creating such amazing documentation.
Roy Tate
