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Consider the test case below. It is unexpected that the second query returns NULL, NULL, as the first query returns NULL, 1, and the subsequent queries with WHERE filter shouldn't return any extra row.
DROPTABLE t0;
DROPTABLE t1;
CREATETABLEt0(c0 VARCHAR(500));
CREATETABLEt1(c0 INTEGER, c1 INTEGER);
INSERT INTO t1 (c0) VALUES (1);
INSERT INTO t1 (c1) VALUES (2);
INSERT INTO t0 (c0) VALUES ('a');
SELECTt1.c0FROM t1 LEFT JOIN t0 ONt1.c1; -- NULL, 1SELECTt1.c0FROM t1 LEFT JOIN t0 ONt1.c1WHERE (NOT NULL) UNION ALLSELECTt1.c0FROM t1 LEFT JOIN t0 ONt1.c1WHERE ((NULL) IS NULL);
-- Expected: NULL, 1-- Actual: NULL, NULL-- This query works as expectedSELECTt1.c0FROM t1 LEFT JOIN t0 ONt1.c1WHERE ((NULL) IS NULL); -- NULL, 1
[vos-reference/develop/7]
This Docker image is using the following version of Virtuoso:
Virtuoso Open Source Edition (Column Store) (multi threaded)
Version 7.2.12-dev.3238-pthreads as of Jan 19 2024 (b361275)
Compiled for Linux (x86_64-pc-linux-gnu)
Copyright (C) 1998-2024 OpenLink Software
The text was updated successfully, but these errors were encountered:
Consider the test case below. It is unexpected that the second query returns
NULL, NULL
, as the first query returnsNULL, 1
, and the subsequent queries withWHERE
filter shouldn't return any extra row.I build docker image following this: https://github.com/openlink/vos-reference-docker. Kindly inform me if I did something wrong or I should provide more information.
Here's the version:
The text was updated successfully, but these errors were encountered: