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Fix gin_leafpage_items().

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On closer inspection, commit 84ad68d64 broke gin_leafpage_items(),
because the aligned copy of the page got palloc'd in a short-lived
context whereas it needs to be in the SRF's multi_call_memory_ctx.
This was not exposed by the regression test, because the regression
test doesn't actually exercise the function in a meaningful way.
Fix the code bug, and extend the test in what I hope is a portable
fashion.
This commit is contained in:
Tom Lane
2016-11-04 12:11:47 -04:00
parent 927d7bb6b1
commit 367b99bbb1
3 changed files with 19 additions and 7 deletions
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9
contrib/pageinspect/sql/gin.sql
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@ -1,6 +1,6 @@
CREATE TABLE test1 (x int, y int[]);
INSERT INTO test1 VALUES (1, ARRAY[11, 111]);
CREATE INDEX test1_y_idx ON test1 USING gin (y);
CREATE INDEX test1_y_idx ON test1 USING gin (y) WITH (fastupdate = off);
\x
@ -11,4 +11,9 @@ SELECT * FROM gin_page_opaque_info(get_raw_page('test1_y_idx', 1));
SELECT * FROM gin_leafpage_items(get_raw_page('test1_y_idx', 1));
DROP TABLE test1;
INSERT INTO test1 SELECT x, ARRAY[1,10] FROM generate_series(2,10000) x;
SELECT COUNT(*) > 0
FROM gin_leafpage_items(get_raw_page('test1_y_idx',
(pg_relation_size('test1_y_idx') /
current_setting('block_size')::bigint)::int - 1));