"Bruce Momjian" <[EMAIL PROTECTED]> writes: > Gregory Stark wrote: > >> Is your database initialized with C locale? If so then length(text) is >> optimized to not have to detoast: >> >> if (pg_database_encoding_max_length() == 1) >> PG_RETURN_INT32(toast_raw_datum_size(str) - VARHDRSZ); > > Wow, we optimized length(). OK, will run the test with > substring(t,1,1).
No, we did substring() too :) You could try hashtext() -- Gregory Stark EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org
