fix: session leak when execute explain pipeline in cluster mode (#17572)

* reproduce

* fix: session leak when execute explain pipeline in cluster mode

Author: dqhl76

src/query/service/src/interpreters/interpreter_explain.rs

@@ -222,6 +222,10 @@ impl Interpreter for ExplainInterpreter {
                 let _ = pipeline.main_pipeline.take_on_init();
                 let _ = pipeline.main_pipeline.take_on_finished();
 
+                self.ctx
+                    .get_exchange_manager()
+                    .on_finished_query(&self.ctx.get_id(), None);
+
                 for pipeline in &mut pipeline.sources_pipelines {
                     let _ = pipeline.take_on_init();
                     let _ = pipeline.take_on_finished();

tests/sqllogictests/suites/base/issues/issue_17248.test

@@ -0,0 +1,24 @@
+statement ok
+create or replace table t17248(a integer, b integer, c integer, d integer, e integer)
+
+statement ok
+EXPLAIN PIPELINE SELECT (SELECT COUNT(*) FROM t17248 AS x WHERE x.b < t17248.b) AS col1 FROM t17248 WHERE a > b - 2 AND a < b + 2 OR c > d ORDER BY col1;
+
+statement ok
+EXPLAIN PIPELINE SELECT * FROM t17248 ORDER BY a;
+
+statement ok
+select avg(number) from numbers(10000000);
+
+query T
+select count(*) from system.processes where extra_info like 'EXPLAIN PIPELINE SELECT (SELECT COUNT(*) FROM t17248%';
+----
+0
+
+query T
+select count(*) from system.processes where extra_info like 'EXPLAIN PIPELINE SELECT * FROM t17248 ORDER BY a%';
+----
+0
+
+statement ok
+drop table t17248;