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Fix memory leak in IndexScan node with reordering

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Fix ExecReScanIndexScan() to free the referenced tuples while emptying the
priority queue.  Backpatch to all supported versions.

Discussion: https://postgr.es/m/CAHqSB9gECMENBQmpbv5rvmT3HTaORmMK3Ukg73DsX5H7EJV7jw%40mail.gmail.com
Author: Aliaksandr Kalenik
Reviewed-by: Tom Lane, Alexander Korotkov
Backpatch-through: 10
This commit is contained in:
Alexander Korotkov
2022-02-14 03:26:55 +03:00
parent 14ee565f39
commit 0d554775bd
3 changed files with 36 additions and 1 deletions
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4
src/test/regress/sql/create_index.sql
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@@ -455,6 +455,10 @@ EXPLAIN (COSTS OFF)
SELECT circle_center(f1), round(radius(f1)) as radius FROM gcircle_tbl ORDER BY f1 <-> '(200,300)'::point LIMIT 10;
SELECT circle_center(f1), round(radius(f1)) as radius FROM gcircle_tbl ORDER BY f1 <-> '(200,300)'::point LIMIT 10;
EXPLAIN (COSTS OFF)
SELECT point(x,x), (SELECT f1 FROM gpolygon_tbl ORDER BY f1 <-> point(x,x) LIMIT 1) as c FROM generate_series(0,10,1) x;
SELECT point(x,x), (SELECT f1 FROM gpolygon_tbl ORDER BY f1 <-> point(x,x) LIMIT 1) as c FROM generate_series(0,10,1) x;
-- Now check the results from bitmap indexscan
SET enable_seqscan = OFF;
SET enable_indexscan = OFF;