zer-core 1.0.0

Core traits and types for the zer entity-resolution library
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# zer-core

Core traits and types for the [zer](https://crates.io/crates/zer) entity-resolution library.

This crate defines the fundamental building blocks that every other `zer-*` crate builds on top of. If you are using zer through the top-level `zer` crate you do not need to depend on this directly.

## What it provides

| Item | Description |
|------|-------------|
| `Record` / `IntoRecord` | The universal row type and conversion trait |
| `RecordStore` / `VecRecordStore` | In-memory storage for ingested records |
| `RecordPool` | Thread-safe pool for candidate pair buffering |
| `Schema` / `FieldKind` | Schema definition: field names, types, and null handling |
| `FieldMapping` / `NullPolicy` | Controls how source columns map to schema fields |
| `Comparator` / `Scorer` traits | Interfaces implemented by `zer-compare` and `zer-compute` |
| `ZerError` | Unified error type for the whole ecosystem |

## Usage

```toml
[dependencies]
zer-core = "0.1"
```

Most users should depend on the [`zer`](https://crates.io/crates/zer) facade crate instead, which re-exports everything needed.

## Part of the zer ecosystem

[`zer`](https://crates.io/crates/zer) ยท [GitHub](https://github.com/ZAL-Analytics/zer)