[rlm_sql] Callback sql_fields

[Geaaru]

Hi,

after a diff of rlm_sql_ocioracle.c or rlm_sql_mysql.c between version
3.0.8 and last 3.0.17 I see that on rlm_sql_module_t structure is
present sql_fields callback, but I don't see on rlm_sql.c code where it
is used.

1) It is related a new callback for next releases ?

2) What is target of sql_fields callback ? The idea is store column
data pointer directly on rlm_sql strucuture to avoid duplicate code on
handle array of strings ?

3) sql_store_result instead wil be removed ?

Thanks in advance for any support.

G.