How to modify the maximum length of the milvus field 'max_length'?

[yangy996]

Is there an existing issue for this?

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Current Behavior

Expected Behavior

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Steps To Reproduce

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Milvus Log

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[yanliang567]

I think you defined the max length in your collection schema. please try to describe the collection schema for the details. Milvus does not support dynamically update the max length for now, you need to create a new collection with a new max length value.
/assign @yangy996
/unassign

[yangy996]

I think you defined the max length in your collection schema. please try to describe the collection schema for the details. Milvus does not support dynamically update the max length for now, you need to create a new collection with a new max length value.我认为你在集合模式中定义了最大长度。请尝试描述收集方案的细节。Milvus目前不支持动态更新最大长度，您需要创建一个新的集合，并使用新的最大长度值。 /assign @yangy996 /unassign

My god.I have already stored a lot of data. How can I not clear the data and create a new collection?

[xiaofan-luan]

@yanliang567

we already have modify collection request

/assign @PowderLi could you help on modify the schema?

[xiaofan-luan]

@yangy996
mean time, you can use birdwatcher to hack the schema and rewrite into etcd.
simply read it out from etcd, hack the length, write it back and restart rootcoord would work
don't forget to backup before do so

[yangy996]

The length of this text is only 2208 characters, but after storing it in Milvus, it shows 5066. Does Milvus store Chinese text in bytes instead of string length?

[xiaofan-luan]

the length of milvus is byte length.
A chinese character is only usually 2-3 bytes.

You can simply set varchar length to 65536

[mjzcng]

@yangy996 mean time, you can use birdwatcher to hack the schema and rewrite into etcd. simply read it out from etcd, hack the length, write it back and restart rootcoord would work don't forget to backup before do so

Hello! I've met the same issue and I just noticed your reply. Now I've installed birdwatcher and connected to etcd, could you please explain how to use birdwatcher to hack the schema and rewrite? I have read help in birdwatcher but still don't understand how to do this. Thank you !

[yanliang567]

/assign @congqixia
please help

[congqixia]

I'm afraid schema modification is still in beta. Recently we add modifying clustering key feature only. We shall add modify max-length asap

[xiaofan-luan]

I think modify max length feature is a easy fix.
it should be very easy with load/release
@congqixia could you help on this?

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