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# ask-community
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Yuan Cheng

03/21/2023, 6:10 PM
Hi team, we are using dagster.Output method to pass values and metadata from upstream asset to downstream asset, however, every time we do new code deployment, those values will be wiped out. Is there any other way to pass those values and will not be wiped out by new code deployment? Thanks!
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Odette Harary

03/22/2023, 1:51 PM
Hi Yuan - have you tried to save the metadata somewhere
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Yuan Cheng

03/22/2023, 4:09 PM
Hi @Odette Harary, thanks for the hint, we are able to get it by using metadata_by_key.
👍 1
Hi @Odette Harary, seems like the issue is still exist, here's the detail, thanks for the help:
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