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Can't convert VARIANT of type 'INT128' to Parquet VARIANT (DuckDB 1.5 nightly)

needs triage

Status: Open.

#21070 In duckdb/duckdb;

· ryanworl opened on Feb 24, 2026

[regression] INTERNAL Error: invalid code point detected in Utf8Proc::UTF8ToCodepoint, likely due to invalid UTF-8

under review

Status: Open.

#21061 In duckdb/duckdb;

· gijshendriksen opened on Feb 24, 2026

1.5.0.dev285: Referenced column not found

reproduced

Status: Open.

#21004 In duckdb/duckdb;

· OneCyrus opened on Feb 18, 2026

Out Of Memory Error for "select distinct .. limit"

reproduced

Status: Open.

#21002 In duckdb/duckdb;

· thomasrynnetopaz opened on Feb 18, 2026

Pinning an extension version doesn't work

under review

Status: Open.

#21001 In duckdb/duckdb;

· enniomara opened on Feb 18, 2026

read_csv fails to read field with quotes when quoted field has a comma and is beyond sample_size rows

reproduced

Status: Open.

#21000 In duckdb/duckdb;

· omerfyalcin opened on Feb 18, 2026

Internal ERROR with a MERGE query

Breaking Change

reproduced

Status: Open.

#20991 In duckdb/duckdb;

· mat813 opened on Feb 17, 2026

read_parquet() in v1.4.4 allows directory paths without need for wildcard or glob pattern.

Status: Open.

#20981 In duckdb/duckdb;

· SundareshSankaran opened on Feb 16, 2026

Request to test network stack changes in duckdb-httpfs between v1.4 and v1.5

announcement

Status: Open.

#20977 In duckdb/duckdb;

· guillesd opened on Feb 16, 2026

CTE materialisation prevents column pruning for simple pass-through CTEs (100x slowdown, regression between 1.3.2 and 1.4.0)

reproduced

Status: Open.

#20958 In duckdb/duckdb;

· RobinL opened on Feb 14, 2026

Shasum on extension file changed for fixed link/version

under review

Status: Open.

#20956 In duckdb/duckdb;

· FrankPortman opened on Feb 13, 2026

Insert or replace succeeds but doesn't update non-PK indexed columns

reproduced

Status: Open.

#20952 In duckdb/duckdb;

· jkeillor opened on Feb 13, 2026