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Trouble with DuckDB wrong

2 posts from 2 people2d activeSteady, +1 this weekunverified

Posts per day

Posts per day2 posts, Sep 19 to Nov 2

The posts behind it

GitHub issuesduckdb/duckdb · jtrutyOct 28

BIGNUM comparison with a negated constant is wrong inside a lambda on Linux

### What happens? On Linux, comparing a BIGNUM with a negated BIGNUM constant inside a lambda gives the wrong result when the list has more than one element. Both elements compare as if the constant were positive. The same query is correct: - on DuckDB 1.5.5 (Linux), - on DuckDB...

GitHub issuesduckdb/duckdb · GiorgiSep 19

Wrong BigNum casts

### What happens? Similar to #13239, casting some values to BIGNUM prints a wrong value: There are 183 cases in total: `SELECT count(*), min(i), max(i) FROM range(72057594037927930, 72057594037928236) t(i) WHERE (i::BIGINT::BIGNUM)::VARCHAR <> i::VARCHAR;` ### To Reproduce ###...

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Companies and products named

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About this problem

Evidence

2 posts from 2 people in 1 place, about 1 a week over 40 days. Mostly on duckdb/duckdb. Tools named alongside: Docker.

Frustration Frustration 0 of 3· Seen on GitHub issues

How it was grouped

Posts about DuckDB with no known issue, sharing the word "wrong". First post Sep 19, 2026, latest Oct 28, 2026. Unverified: fewer than 3 posts, or one person or place only. Method

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History

First seen with 2 posts; the top post now: "Wrong BigNum casts".

Nov 2, 2026