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Fix column name for COUNT(*) set by AggregateStatistics #7757

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merged 1 commit into from
Oct 6, 2023
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Fix column name for COUNT(*) set by AggregateStatistics #7757

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2 changes: 1 addition & 1 deletion datafusion/core/src/physical_optimizer/aggregate_statistics.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ use crate::error::Result;
pub struct AggregateStatistics {}

/// The name of the column corresponding to [`COUNT_STAR_EXPANSION`]
const COUNT_STAR_NAME: &str = "COUNT(UInt8(1))";
const COUNT_STAR_NAME: &str = "COUNT(*)";

impl AggregateStatistics {
#[allow(missing_docs)]
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2 changes: 1 addition & 1 deletion datafusion/core/tests/custom_sources.rs
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Expand Up @@ -268,7 +268,7 @@ async fn optimizers_catch_all_statistics() {

let expected = RecordBatch::try_new(
Arc::new(Schema::new(vec![
Field::new("COUNT(UInt8(1))", DataType::Int64, false),
Field::new("COUNT(*)", DataType::Int64, false),
Field::new("MIN(test.c1)", DataType::Int32, false),
Field::new("MAX(test.c1)", DataType::Int32, false),
])),
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2 changes: 1 addition & 1 deletion datafusion/core/tests/sql/explain_analyze.rs
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Expand Up @@ -804,7 +804,7 @@ async fn explain_physical_plan_only() {

let expected = vec![vec![
"physical_plan",
"ProjectionExec: expr=[2 as COUNT(UInt8(1))]\
"ProjectionExec: expr=[2 as COUNT(*)]\
\n EmptyExec: produce_one_row=true\
\n",
]];
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2 changes: 1 addition & 1 deletion datafusion/sqllogictest/test_files/explain.slt
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Expand Up @@ -93,7 +93,7 @@ query TT
EXPLAIN select count(*) from (values ('a', 1, 100), ('a', 2, 150)) as t (c1,c2,c3)
----
physical_plan
ProjectionExec: expr=[2 as COUNT(UInt8(1))]
ProjectionExec: expr=[2 as COUNT(*)]
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I think this covers the output as well.

--EmptyExec: produce_one_row=true

statement ok
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