I had thought that char2-16 add _no_ functionality over the char() and
varchar() types; Tatsuo points out at least one capability which they
have. Are there any others?

They give and take a char * pointer to a C function like
create function upper(char16)
returning char16 as '/u/my/upper.so' language 'sql';
whereas char() gives a varlena pointer.

Andreas

Responses

• Re: AW: [HACKERS] varchar() vs char16 performance at 1998-03-19 17:27:38 from Thomas G. Lockhart

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