nochangeでお願いします

sqlFetchを使う際、大文字で指定したテーブル名が勝手に小文字に変換される。
sqlFetchの引数を見てもそんな指定はない。
困ったと思いヘルプをつらつら見ているとodbcConnectにそのような指定があることに気づいた。
とりいそぎcase="nochange"に指定した次第。
以下odbcConnectのヘルプより抜粋

For DBMSs that translate table and column names case must be set appropriately. Allowable
values are "nochange", "toupper" and "tolower" as well as the names of databases where the
behaviour is known to us (currently "mysql", which maps to lower case on Windows but not on
Linux, "postgresql" (lower), and "msaccess" (nochange)). If case is not specified, the default is
"nochange" unless the appropriate value can be figured out from the DBMS name reported by the
ODBC driver. It is likely that "toupper" is desirable on IBM’s DB2, but this is not enforced.

しかしこんな引数いつ入ったんだ。

require(RODBC)
con <- odbcConnect(dsn="hoge", case="nochange")
res <- sqlFetch(con, "HOGETABLE", max=MAX)
close(con)