precedence problems with partials

[mtoy-googly-moogly]

This works ...

source: d is duckdb.sql("select 1 as num, 'a' as str")
run: d -> {
  where:
    num = 1
    and str ? 'a' | 'b'
  select: *
}

This fails ...

run: d -> {
  where:
    str ? 'a' | 'b'
    and num = 1
  select: *
}

Because it is parsing as ...

run: d -> {
  where:
    str ? ('a' | 'b' and num = 1)
  select: *
}