[BUG]

[kurtlawrence]

Current Behaviour

Following on from #137, this code (with the variable defined, but an extra line) makes slow compilation.

# Returns a table with the following headers:
# `P20,P50,P80,σ`
def sim-characteristics Table (col:Str) {
    let {len} $len
    | let { fold 0 + { \ $row | get $col} | / $len } $mean
    | Table 'mean'
    | append-row $mean
}

# Construct the Saleable by year table.
open input-constrained.csv | grp-by {get:Str Period | take 4} | map value { grp Run 
    | map value fold 0 + $row.SaleableTonnesMprd | ren value Saleable }
| map value sim-characteristics Saleable
| fold {Table} + { \ $row | get value | append --Year $row.key }
| save saleable-table.csv

Typing $row.key:Str fixes the issue.

Expected Behaviour

Reproduction Steps

Additional information