feat(ir): more flexible dereferencing support for the right hand side of joins #8581
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kszucs
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#8992) Enables to use fields from parent tables of the join right hand side instead of enforcing to use the same exact table: ```py t1 = ibis.table(name="t1", schema={"a": "int64", "b": "string"}) t2 = ibis.table(name="t2", schema={"c": "int64", "d": "string"}) t3 = t2.mutate(e=t2.c + 1) joined = t1.join(t3, [t1.a == t2.c]) # here we use t2.c instead of t3.c ``` Identify ambiguous cases and raise an error, like the following case: ```py t.join(t, [t.a == t.a]) ``` depends on: - #9043 - #9041 fixes #8581
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Is your feature request related to a problem?
The right hand side of joins is not dereferenced, for temporal joins we need more flexible dereferencing. Blocks #8412 #8537
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