On 25/08/2026 11:13, Heikki Linnakangas wrote:
/*
* Expansion factor of string length, not including terminating NUL.
That is,
* the upper bound of the number of multibyte characters in the result
string
* per multibyte character in the input string.
*
* NB: assumes no provider exceeds the Unicode-defined maximum.
*/
#define PG_MAX_CASEMAP_MBCHARS UNICODE_MAX_CASEMAP_CODEPOINTS
Is it a number of codepoints or bytes? The comment says "multibyte
characters" which I think means codepoints in unicode, but the ltree
code does this:
/* max space required to map single codepoint, including NUL */
char foldstr[PG_CASEMAP_BUFSZ];
Which sure looks like # of bytes.
Never mind. Just after sending this I saw that PG_CASEMAP_BUFSZ is
different from PG_MAX_CASEMAP_MBCHARS. Sorry for the noise.
- Heikki
