Issues

• Every file handle opens a new connection (SESSION_LOCAL transport reuse), TLS handshake per small range read

  duckdb/duckdb-httpfs#505 · Filter by author onnimonni opened on Oct 22, 2026

• External file cache never stores private GCS objects: Cache-Control: private, max-age=0 makes every response unreusable under VALIDATE_ALL

  duckdb/duckdb-httpfs#504 · Filter by author sayantan-wisdom opened on Oct 22, 2026
  1

• Support remote request signing for S3 (Iceberg REST remote-signing)

  duckdb/duckdb-httpfs#503 · Filter by author N-Clerkx opened on Oct 20, 2026
  1

• Expose S3 multipart threshold and minimum upload-part size to reduce request costs

  duckdb/duckdb-httpfs#477 · Filter by author kuza55 opened on Oct 8, 2026

• httpfs on Windows intermittently fails TLS verification against Cloudflare-fronted hosts; works with ca_cert_file set

  duckdb/duckdb-httpfs#470 · Filter by author klonuo opened on Oct 3, 2026

• S3 auto-refresh conflicts with secret catalog transactions during DuckLake ingestion

  duckdb/duckdb-httpfs#462 · Filter by author jdctinuiti opened on Sep 29, 2026
  1

• Partitioned COPY to S3 sends two blocking existence HEADs per output file (2.0-alpha is ~2× slower than 1.5.4)

  duckdb/duckdb-httpfs#466 · Filter by author RamitGoolry opened on Sep 29, 2026

• S3 HTTP 400 ExpiredToken doesn't trigger credential refresh

  duckdb/duckdb-httpfs#449 · Filter by author mattgiles opened on Sep 23, 2026
  1

• Allow setting s3_url_style via environment variable

  duckdb/duckdb-httpfs#438 · Filter by author AlphaJack opened on Sep 11, 2026

• Secret refresh re-creates the secret in its origin storage, which breaks (or silently mutates) extension-registered secret storages

  duckdb/duckdb-httpfs#412 · Filter by author kinghuang opened on Aug 28, 2026

• Error reading JSON API over HTTP unless force_download=true (server returns 405 on HEAD, DuckDB falls back to broken range requests)

  duckdb/duckdb-httpfs#408 · Filter by author ericemc3 opened on Aug 27, 2026

• allow forcing full (non-range) HTTP downloads for servers with non-compliant Range/206 responses with SET force_download = true

  duckdb/duckdb-httpfs#407 · Filter by author ericemc3 opened on Aug 27, 2026
  1

• DuckDB 2.0 httpfs multipart upload - Cloudflare R2 InvalidPart

  duckdb/duckdb-httpfs#405 · Filter by author staticlibs opened on Aug 24, 2026
  1

• COPY TO 's3://...' hangs forever when a CreateMultipartUpload fails: uploads_in_progress is leaked in FlushBuffer

  duckdb/duckdb-httpfs#387 · Filter by author AllenZh94 opened on Aug 3, 2026
  1

• DuckLake-opened S3 files skip bucket-region resolution since 1.5.3; 1.5.5 masks the 301 with misleading errors

  duckdb/duckdb-httpfs#386 · Filter by author giomattoni opened on Aug 2, 2026

• Flaky test failure: Unknown storage type found for drop secret: 'bogus'

  duckdb/duckdb-httpfs#375 · Filter by author smvv opened on Jul 24, 2026

• HTTPFS fully downloads a file when HEAD returns 200 without Content-Length, even though Range requests are supported

  duckdb/duckdb-httpfs#401 · Filter by author esgn opened on Jul 23, 2026

• Add support for request bodies on DELETE reuqests

  duckdb/duckdb-httpfs#371 · Filter by author its-felix opened on Jul 20, 2026

• On slower networks "Invalid Error: Failed to decompress GZIP block: data error" for files that work on faster networks

  duckdb/duckdb-httpfs#366 · Filter by author grbinho opened on Jul 14, 2026

• Feature request / discussion: consolidate cache in DuckDB core

  duckdb/duckdb-httpfs#362 · Filter by author dentiny opened on Jul 7, 2026

• S3 glob fails with stale HTTP 503 error even though http_retries succeeded (AWSListObjectV2::Request)

  duckdb/duckdb-httpfs#361 · Filter by author tcboles opened on Jul 6, 2026

• S3 region redirect causes self-deadlock in file initialization and silent data corruption in cache

  duckdb/duckdb-httpfs#347 · Filter by author shalinilohia50 opened on Jun 22, 2026

• When cache_httpfs is loaded, HTTP response headers (e.g., Content-Range) are not captured in HTTP logging (duckdb_logs_parsed('HTTP'))

  duckdb/duckdb-httpfs#345 · Filter by author shalinilohia50 opened on Jun 18, 2026

• ETag-matched cache entry can carry wrong file size after concurrent write, causing permanent "No magic bytes found at end of file

  duckdb/duckdb-httpfs#338 · Filter by author chorng opened on Jun 9, 2026

• Long-running parallel parquet reads from public S3 fail on 1.5.x (work on 1.4.4)

  duckdb/duckdb-httpfs#334 · Filter by author lixun910 opened on May 26, 2026
  16