From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: exclusion@gmail.com
Subject: BUG #17969: Assert failed in bloom_init() when false_positive_rate = 0.25
Date: Sun, 11 Jun 2023 15:00:01 +0000
Message-ID: <17969-a6c54de48026d694@postgresql.org> (raw)
The following bug has been logged on the website:
Bug reference: 17969
Logged by: Alexander Lakhin
Email address: exclusion@gmail.com
PostgreSQL version: 16beta1
Operating system: Ubuntu 22.04
Description:
The following script:
CREATE TABLE tbl (i int);
CREATE INDEX idx ON tbl USING brin (i int4_bloom_ops(false_positive_rate =
0.25));
INSERT INTO tbl VALUES(1);
triggers an assertion failure:
TRAP: failed Assert("(false_positive_rate >= BLOOM_MIN_FALSE_POSITIVE_RATE)
&& (false_positive_rate < BLOOM_MAX_FALSE_POSITIVE_RATE)"), File:
"brin_bloom.c", Line: 282, PID: 1062784
Reproduced starting from 77b88cd1b.
With false_positive_rate = 0.2500000000000001 I get
ERROR: value 0.2500000000000001 out of bounds for option
"false_positive_rate"
DETAIL: Valid values are between "0.000100" and "0.250000".
Maybe that Assert is not needed at all...
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Subject: Re: BUG #17969: Assert failed in bloom_init() when false_positive_rate = 0.25
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