Issues

• INSERT ... ON CONFLICT into an attached table copies every row's key on each statement: O(target) per upsert

  duckdb/duckdb-postgres#575 · Filter by author turbolytics opened on Sep 14, 2026

• ORDER BY col NULLS FIRST ... LIMIT returns only NULL rows through the Postgres scanner

  duckdb/duckdb-postgres#564 · Filter by author vltmn opened on Sep 2, 2026
  1

• Allow explicit result column types for postgres_query

  duckdb/duckdb-postgres#491 · Filter by author az5112 opened on Jun 29, 2026
  1

• MERGE INTO PostgreSQL table does not apply target column defaults for omitted columns

  duckdb/duckdb-postgres#487 · Filter by author LeonardoPedri opened on Jun 17, 2026

• After COPY DATABASE FROM <pg>, the types from pg are improperly formatted in EXPORT commands

  duckdb/duckdb-postgres#429 · Filter by author NickCrews opened on Apr 4, 2026

• GEOMETRY column not recognized when using postgres_query()

  duckdb/duckdb-postgres#415 · Filter by author peterschaer opened on Mar 19, 2026

• Make the transaction snapshot ID an ATTACH parameter

  duckdb/duckdb-postgres#403 · Filter by author mdeville opened on Feb 4, 2026
  2

• Build fails on FreeBSD: error: redefinition of 'addrinfo'

  duckdb/duckdb-postgres#401 · Filter by author yurivict opened on Jan 30, 2026
  1

• duckdb enters "restricted mode" due to INTERNAL error

  duckdb/duckdb-postgres#399 · Filter by author gishor opened on Jan 21, 2026

• Feature: Exploit parallelism support for TID Range Scans

  duckdb/duckdb-postgres#392 · Filter by author szarnyasg opened on Nov 28, 2025

• INSERT OR REPLACE fails on json columns

  duckdb/duckdb-postgres#390 · Filter by author ceymard opened on Nov 25, 2025
  1

• Duplicated records when row is updated between transactions

  duckdb/duckdb-postgres#381 · Filter by author leticiarina opened on Nov 4, 2025

• Problem updating Postgres ENUM from DuckDB

  duckdb/duckdb-postgres#379 · Filter by author ruidc opened on Oct 30, 2025

• Support for Postgres 18 OAuth Authorization

  duckdb/duckdb-postgres#376 · Filter by author 0814celsus opened on Oct 20, 2025

• Help compiling duckdb and error loading postgres: undefined symbol: _ZTIN6duckdb7CatalogE

  duckdb/duckdb-postgres#371 · Filter by author MarceloZabini opened on Sep 17, 2025
  1

• bug: filter_push_down still ends up scanning postgres table without hitting any indexes for filters

  duckdb/duckdb-postgres#369 · Filter by author nojvek opened on Sep 14, 2025
  3

• Silent switching from binary to text copy

  duckdb/duckdb-postgres#358 · Filter by author acerioni opened on Aug 4, 2025
  6

• Composite Type converted to string when using postgres_query

  duckdb/duckdb-postgres#353 · Filter by author aersam opened on Jul 21, 2025
  1

• Types with all the same type return as string and not as struct

  duckdb/duckdb-postgres#352 · Filter by author aersam opened on Jul 21, 2025
  1

• COPY FROM DATABASE fails on 1.3.1 & 1.4.0.dev861

  duckdb/duckdb-postgres#338 · Filter by author jgrg opened on Jun 30, 2025

• Postgres_scan should be able to read a persistent secret

  duckdb/duckdb-postgres#331 · Filter by author jjcfrancisco opened on May 31, 2025

• Inconsistent Column Name Quoting in DuckDB with PostgreSQL Integration

  duckdb/duckdb-postgres#329 · Filter by author camargocr opened on May 28, 2025
  2

• Support for windows_amd64_mingw

  duckdb/duckdb-postgres#317 · Filter by author namkazt opened on Apr 26, 2025

• Can't create a Postgis table from a geojson file

  duckdb/duckdb-postgres#316 · Filter by author ericemc3 opened on Apr 25, 2025

• Can't create table with GEOMETRY type using CTAS

  duckdb/duckdb-postgres#311 · Filter by author Maxxen opened on Mar 28, 2025