suibianwanwank commented on code in PR #15281:
URL: https://github.com/apache/datafusion/pull/15281#discussion_r1999272559
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datafusion/optimizer/src/scalar_subquery_to_join.rs:
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@@ -476,19 +485,19 @@ mod tests {
.build()?;
let expected = "Projection: customer.c_custkey [c_custkey:Int64]\
- \n Filter: customer.c_acctbal <
__scalar_sq_1.sum(orders.o_totalprice) [c_custkey:Int64, c_name:Utf8,
sum(orders.o_totalprice):Float64;N, o_custkey:Int64;N]\
- \n Left Join: Filter: __scalar_sq_1.o_custkey = customer.c_custkey
[c_custkey:Int64, c_name:Utf8, sum(orders.o_totalprice):Float64;N,
o_custkey:Int64;N]\
- \n TableScan: customer [c_custkey:Int64, c_name:Utf8]\
- \n SubqueryAlias: __scalar_sq_1
[sum(orders.o_totalprice):Float64;N, o_custkey:Int64]\
- \n Projection: sum(orders.o_totalprice), orders.o_custkey
[sum(orders.o_totalprice):Float64;N, o_custkey:Int64]\
- \n Aggregate: groupBy=[[orders.o_custkey]],
aggr=[[sum(orders.o_totalprice)]] [o_custkey:Int64,
sum(orders.o_totalprice):Float64;N]\
- \n Filter: orders.o_totalprice <
__scalar_sq_2.sum(lineitem.l_extendedprice) [o_orderkey:Int64, o_custkey:Int64,
o_orderstatus:Utf8, o_totalprice:Float64;N,
sum(lineitem.l_extendedprice):Float64;N, l_orderkey:Int64;N]\
- \n Left Join: Filter: __scalar_sq_2.l_orderkey =
orders.o_orderkey [o_orderkey:Int64, o_custkey:Int64, o_orderstatus:Utf8,
o_totalprice:Float64;N, sum(lineitem.l_extendedprice):Float64;N,
l_orderkey:Int64;N]\
- \n TableScan: orders [o_orderkey:Int64,
o_custkey:Int64, o_orderstatus:Utf8, o_totalprice:Float64;N]\
- \n SubqueryAlias: __scalar_sq_2
[sum(lineitem.l_extendedprice):Float64;N, l_orderkey:Int64]\
- \n Projection: sum(lineitem.l_extendedprice),
lineitem.l_orderkey [sum(lineitem.l_extendedprice):Float64;N, l_orderkey:Int64]\
- \n Aggregate: groupBy=[[lineitem.l_orderkey]],
aggr=[[sum(lineitem.l_extendedprice)]] [l_orderkey:Int64,
sum(lineitem.l_extendedprice):Float64;N]\
- \n TableScan: lineitem [l_orderkey:Int64,
l_partkey:Int64, l_suppkey:Int64, l_linenumber:Int32, l_quantity:Float64,
l_extendedprice:Float64]";
+ \n Filter: customer.c_acctbal <
__scalar_sq_1.sum(orders.o_totalprice) [c_custkey:Int64, c_name:Utf8,
sum(orders.o_totalprice):Float64;N, o_custkey:Int64;N, __always_true:Boolean;N]\
Review Comment:
These plan changes are due to redundant columns. It will be trimmed later in
the optimization.
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