go - Is it possible for Google App Engine string and integer datastore keys to clash? -

this question has answer here:

• can use allocateids “string” ? datastore 3 answers

i have datastore entity of kind myentity , want use stringid keys , other times use intid keys generated allocateids.

can safely mix string , integer ids without worrying string id might surreptitiously overwrite integer id generated allocateids , vice versa?

the reason ask because assume string , integer ids use same index. possible accidentally have sequence of bytes represent string id same sequence of bytes represent integer id on same index? or string , integer ids namespaced in way prevent collisions?

yes, can safely mix string & int ids same kind - same key (entity) can not use both @ same time. there no danger of overlapping. guess under hood use protocol buffers serialize key []byte.

i used in production without issues.

though maybe not best design depends on case.