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[Bug] SELECT DISTINCT returns wrong value for UNIQUE model · Issue #36343 · apache/doris · GitHub
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- I had searched in the issues and found no similar issues.
Version
2.1.4
What's Wrong?
Could be related to #36072
CREATE TABLE t0(c0 INT) UNIQUE KEY(c0) DISTRIBUTED BY HASH (c0) PROPERTIES ("replication_num" = "1");
CREATE TABLE t1(c0 INT NOT NULL) DISTRIBUTED BY HASH (c0) PROPERTIES ("replication_num" = "1");
INSERT INTO t0 (c0) VALUES (1);
This returns value 0, but there is no value 0 in t1.c0:
SELECT DISTINCT t1.c0 FROM t0 LEFT JOIN t1 ON (true) WHERE ((t1.c0) IS NULL);
What You Expected?
This returns null:
SELECT DISTINCT t1.c0 FROM t0 LEFT JOIN t1 ON (true) WHERE ((t1.c0) IS NULL);
How to Reproduce?
DROP DATABASE IF EXISTS doris2;
CREATE DATABASE doris2;
USE doris2;
CREATE TABLE t0(c0 INT) UNIQUE KEY(c0) DISTRIBUTED BY HASH (c0) PROPERTIES ("replication_num" = "1");
CREATE TABLE t1(c0 INT NOT NULL) DISTRIBUTED BY HASH (c0) PROPERTIES ("replication_num" = "1");
INSERT INTO t0 (c0) VALUES (1);
SELECT DISTINCT t1.c0 FROM t0 LEFT JOIN t1 ON (true);
SELECT DISTINCT t1.c0 FROM t0 LEFT JOIN t1 ON (true) WHERE ((t1.c0) IS NULL);
Anything Else?
No response
Are you willing to submit PR?
- Yes I am willing to submit a PR!
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- I agree to follow this project's Code of Conduct
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