Hey guys,
I'm a little confused by the documentation on varchar data type in postgresql.
Looking at the docs Peter Eisentraut added this note at the bottom of the
documentation for character data.
---
The maximum value for "n" is 2147483648. The longest possible string is actually only
about 1 GB, though. The storage size of "(4+n)" is actually incorrect: char(n) really
takes 4+n but varchar(n) and text take 4 plus the actual length of the stored string.
Long strings will actually be compressed by the system, though.
---
So does this mean I can specify very large varchar column types, like say
varchar(1024)?
And what does he mean by 'Long strings will actually be compressed by the system'?
Thanx.
Roy.
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