dataframe-expr-serializer

Serialize and deserialize dataframe expressions and pipelines.

Stackage Nightly 2026-08-14:1.2.0.1@rev:2
Latest on Hackage:1.2.0.1@rev:2

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MIT licensed by Michael Chavinda
Maintained by [email protected]
This version can be pinned in stack with:dataframe-expr-serializer-1.2.0.1@sha256:672b7652e5c7f9e9e3c0119264180fb0f43c596ebfe930437299ecad7245780e,1935

Module documentation for 1.2.0.1

Used by 2 packages in nightly-2026-08-14(full list with versions):
dataframe, dataframe-learn

Save fitted Expr values and whole pipelines (ordered [NamedExpr]) to a portable JSON form and reload them for inference — in another Haskell process or from Python, sharing one wire format.

DataFrame.Expr.Serialize is the format-agnostic public API (expression and pipeline encodedecode plus filebytes save-load helpers). DataFrame.IR.ExprJson is the low-level JSON wire codec — the cross-language contract the Python bindings decode against.

Depends only on dataframe-core and dataframe-operations (both pure), so a saved model can be loaded without the CSVParquetArrow stack.