Is custom prefix extractor SliceTransform supported?

[basic-abc]

Hello,

Want to know if implementing custom prefix transforms is achievable with this wrapper? I think it is here,

rocksdb_slicetransform_create(
    void* state, void (*destructor)(void*),
    char* (*transform)(void*, const char* key, size_t length,
                       size_t* dst_length),
    unsigned char (*in_domain)(void*, const char* key, size_t length),
    unsigned char (*in_range)(void*, const char* key, size_t length),
    const char* (*name)(void*));

https://github.com/linxGnu/grocksdb/blob/master/c.h#L2378-L2391

Is the only option to use fixed prefix?

grocksdb/slice_transform.go

Line 26 in 5af746e

func NewFixedPrefixTransform(prefixLen int) SliceTransform {

Thank you for your reply.

[linxGnu]

@basic-abc

Sorry for late reply. At the moment, I don't have any plan for custom prefix transform. However, absolutely welcome PR/Contributions from you and others.