Adding a comment why TranslateSQLType is exported.

modified:
  storage/connect/value.h

storage/connect/value.h

@@ -45,6 +45,7 @@ PVAL  AllocateValue(PGLOBAL, void *, short);
 DllExport PSZ   GetTypeName(int);
 DllExport int   GetTypeSize(int, int);
 #ifdef ODBC_SUPPORT
+/* This function is exported for use in EOM table type DLLs */
 DllExport int   TranslateSQLType(int stp, int prec, int& len);
 #endif
 DllExport char *GetFormatType(int);