Module config 

Configuration types for Hamelin backends.

These types describe catalogs, executors, and dataset sources. They are backend-agnostic — each executor crate resolves the dataset configs it supports and returns a clean error for the rest.

Structs

CatalogEntry

Wraps a CatalogConfig with an optional default flag.

CatalogEntryBuilder

Use builder syntax to set the inputs and finish with build().

ColumnConfig

ColumnConfigBuilder

Use builder syntax to set the inputs and finish with build().

DatasetStore

Holds configured datasets and catalogs, and resolves table references from queries.

FilesConfig

FilesConfigBuilder

Use builder syntax to set the inputs and finish with build().

HamelinConfig

Top-level Hamelin configuration loaded from ~/.hamelin.toml and environment variables. Contains catalog discovery sources and dataset definitions.

IcebergConfig

IcebergConfigBuilder

Use builder syntax to set the inputs and finish with build().

MemConfig

MemConfigBuilder

Use builder syntax to set the inputs and finish with build().

StaticAwsCredentials

StaticAwsCredentialsBuilder

Use builder syntax to set the inputs and finish with build().

ViewConfig

ViewConfigBuilder

Use builder syntax to set the inputs and finish with build().

Enums

CatalogConfig

Compression

Compression codec for file-based datasets.

DatasetConfig

DatasetStoreError

FileFormat

File format for file-based datasets.

ResolvedDataset

What a table reference resolved to.