index() ExprTK function fails during update()

[texodus]

Bug Report

Steps to Reproduce:

const table = await worker.table({x:[1,2,3,4,5]});
const view = await table.view({
    columns: ["x", "y"],
    expressions: {"y": "index()"},
});
await table.update({"x": [6, 7]});
const json = await view.to_json();

Expected Result:

json with the results of the query.

Actual Result:

Uncaught Error: Abort(): Could not find column index for psp_pkey as it does not exist in the schema.

Environment:

Perspective 2.10.1, all languages.