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fix: order by optimization (#1748)

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* add some debug log

* fix: use lazy parquet reader in MitoTable::scan_to_stream to avoid IO in plan stage

* fix: unit tests

* fix: order-by optimization

* add some tests

* fix: move metric names to metrics.rs

* fix: some cr comments
This commit is contained in:
Lei, HUANG
2023-06-12 11:45:43 +08:00
committed by GitHub
parent 7efcf868d5
commit ddcee052b2
19 changed files with 217 additions and 61 deletions
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24
tests-integration/src/tests/instance_test.rs
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@@ -63,16 +63,13 @@ async fn test_create_database_and_insert_query(instance: Arc<dyn MockInstance>)
.await;
assert!(matches!(output, Output::AffectedRows(2)));
let query_output = execute_sql(&instance, "select ts from test.demo order by ts").await;
let query_output = execute_sql(&instance, "select ts from test.demo order by ts limit 1").await;
match query_output {
Output::Stream(s) => {
let batches = util::collect(s).await.unwrap();
assert_eq!(1, batches[0].num_columns());
assert_eq!(
Arc::new(Int64Vector::from_vec(vec![
1655276557000_i64,
1655276558000_i64
])) as VectorRef,
Arc::new(Int64Vector::from_vec(vec![1655276557000_i64])) as VectorRef,
*batches[0].column(0)
);
}
@@ -193,7 +190,7 @@ async fn test_issue477_same_table_name_in_different_databases(instance: Arc<dyn
// Query data and assert
assert_query_result(
&instance,
"select host,ts from a.demo order by ts",
"select host,ts from a.demo order by ts limit 1",
1655276557000,
"host1",
)
@@ -329,32 +326,27 @@ async fn test_execute_insert_query_with_i64_timestamp(instance: Arc<dyn MockInst
.await;
assert!(matches!(output, Output::AffectedRows(2)));
let query_output = execute_sql(&instance, "select ts from demo order by ts").await;
let query_output = execute_sql(&instance, "select ts from demo order by ts limit 1").await;
match query_output {
Output::Stream(s) => {
let batches = util::collect(s).await.unwrap();
assert_eq!(1, batches[0].num_columns());
assert_eq!(
Arc::new(Int64Vector::from_vec(vec![
1655276557000_i64,
1655276558000_i64
])) as VectorRef,
Arc::new(Int64Vector::from_vec(vec![1655276557000_i64,])) as VectorRef,
*batches[0].column(0)
);
}
_ => unreachable!(),
}
let query_output = execute_sql(&instance, "select ts as time from demo order by ts").await;
let query_output =
execute_sql(&instance, "select ts as time from demo order by ts limit 1").await;
match query_output {
Output::Stream(s) => {
let batches = util::collect(s).await.unwrap();
assert_eq!(1, batches[0].num_columns());
assert_eq!(
Arc::new(Int64Vector::from_vec(vec![
1655276557000_i64,
1655276558000_i64
])) as VectorRef,
Arc::new(Int64Vector::from_vec(vec![1655276557000_i64,])) as VectorRef,
*batches[0].column(0)
);
}