Skip to content

Parquet reader refactor: move to a Streamly-based streaming pipeline (bounded memory, clearer structure, optional concurrency) #1231

Parquet reader refactor: move to a Streamly-based streaming pipeline (bounded memory, clearer structure, optional concurrency)

Parquet reader refactor: move to a Streamly-based streaming pipeline (bounded memory, clearer structure, optional concurrency) #1231

Triggered via pull request March 20, 2026 07:47
Status Failure
Total duration 7m 23s
Artifacts

haskell-ci.yml

on: pull_request
Matrix: linux
Fit to window
Zoom out
Zoom in

Annotations

4 errors and 15 warnings
hlint
HLint failed with status: 1. Warning (5), Suggestion (3)
Haskell-CI - Linux - ghc-9.8.4
Process completed with exit code 1.
Haskell-CI - Linux - ghc-9.4.8
Process completed with exit code 1.
Haskell-CI - Linux - ghc-9.6.7
Process completed with exit code 1.
fourmolu
Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v4, haskell-actions/run-fourmolu@v11. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
hlint
Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v4, haskell-actions/hlint-run@v2, haskell-actions/hlint-setup@v2. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
hlint: src/DataFrame/IO/Unstable/Parquet/Thrift.hs#L515
Suggestion in ColumnOrder in module DataFrame.IO.Unstable.Parquet.Thrift: Use newtype instead of data ▫︎ Found: "data ColumnOrder\n = TYPE_ORDER (Field 1 TypeDefinedOrder)\n deriving (Eq, Show, Generic)" ▫︎ Perhaps: "newtype ColumnOrder\n = TYPE_ORDER (Field 1 TypeDefinedOrder)\n deriving (Eq, Show, Generic)" ▫︎ Note: decreases laziness
hlint: src/DataFrame/IO/Unstable/Parquet/PageParser.hs#L28
Suggestion in parsePage in module DataFrame.IO.Unstable.Parquet.PageParser: Use <$> ▫︎ Found: "fmap pinchLogicalTypeToLogicalType $ colLogicalType description" ▫︎ Perhaps: "pinchLogicalTypeToLogicalType <$> colLogicalType description"
hlint: src/DataFrame/IO/Unstable/Parquet/PageParser.hs#L5
Warning in module DataFrame.IO.Unstable.Parquet.PageParser: Unused LANGUAGE pragma ▫︎ Found: "{-# LANGUAGE TypeApplications #-}"
hlint: src/DataFrame/IO/Unstable/Parquet/PageParser.hs#L3
Warning in module DataFrame.IO.Unstable.Parquet.PageParser: Unused LANGUAGE pragma ▫︎ Found: "{-# LANGUAGE RecordWildCards #-}" ▫︎ Note: may require `{-# LANGUAGE DisambiguateRecordFields #-}` adding to the top of the file
hlint: src/DataFrame/IO/Unstable/Parquet.hs#L113
Warning in parseColumns in module DataFrame.IO.Unstable.Parquet: Redundant bracket ▫︎ Found: "(Stream.fromList)" ▫︎ Perhaps: "Stream.fromList"
hlint: src/DataFrame/IO/Unstable/Parquet.hs#L75
Suggestion in parseParquet in module DataFrame.IO.Unstable.Parquet: Redundant bracket ▫︎ Found: "map (unField . name)\n . filter\n (\\ se\n -> unField se.num_children == Nothing\n || unField se.num_children == Just 0)\n $ (unField metadata.schema)" ▫︎ Perhaps: "map (unField . name)\n . filter\n (\\ se\n -> unField se.num_children == Nothing\n || unField se.num_children == Just 0)\n $ unField metadata.schema"
hlint: src/DataFrame/IO/Unstable/Parquet.hs#L72
Warning in parseParquet in module DataFrame.IO.Unstable.Parquet: Use isNothing ▫︎ Found: "unField se.num_children == Nothing" ▫︎ Perhaps: "isNothing (unField se.num_children)"
hlint: src/DataFrame/IO/Unstable/Parquet.hs#L5
Warning in module DataFrame.IO.Unstable.Parquet: Unused LANGUAGE pragma ▫︎ Found: "{-# LANGUAGE TypeApplications #-}"
Haskell-CI - Linux - ghc-9.8.4
Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache/restore@v4, actions/cache/save@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Haskell-CI - Linux - ghc-9.4.8
Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache/restore@v4, actions/cache/save@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Haskell-CI - Linux - ghc-9.6.7
Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache/restore@v4, actions/cache/save@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Haskell-CI - Linux - ghc-9.10.3
Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache/restore@v4, actions/cache/save@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Haskell-CI - Linux - ghc-9.12.2
Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache/restore@v4, actions/cache/save@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/