jiayuasu commented on PR #935:
URL: https://github.com/apache/sedona-db/pull/935#issuecomment-4697938990
Two things give me pause about this mechanism,
though:
1. It doesn't actually solve self-joins. Because the alias is baked from
the source object at create time, a self-join gets the same qualifier on
both sides. I tried the predicate path from your example:
```
df = sd.create_data_frame(...).alias("foo_deadbeef") # one default
alias
df.join(df, on=df["k"] == df["k"])
```
2. 2. The id()-based suffix is non-deterministic. the qualifier changes
every run
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