flattened lineages

lineage.cue

import "github.com/grafana/thema"

thema.#Lineage
name: "trivial-two"
schemas: [{
    version: [0, 0]
    schema: {
        firstfield: string
    }
},
{
    version: [0, 1]
    schema: {
        firstfield: string
        secondfield?: int32
    }
}]

lenses: [{
    from: [0, 1]
    to: [0, 0]
    input: _
    result: {
        firstfield: input.firstfield
    }
}]