pub unsafe extern "C" fn rocksdb_block_based_options_set_data_block_hash_ratio(
options: *mut rocksdb_block_based_table_options_t,
v: f64
)pub unsafe extern "C" fn rocksdb_block_based_options_set_data_block_hash_ratio(
options: *mut rocksdb_block_based_table_options_t,
v: f64
)