Module diff 

Schema-diff types: compare two schema versions and produce structural changes. Schema-diff types.

Compares two db::Schema versions and produces structured changes consumed by drivers to generate migrations.

Examples

use toasty_core::schema::{db, diff};

let previous = db::Schema::default();
let next = db::Schema::default();
let hints = diff::RenameHints::new();
let d = diff::Schema::from(&previous, &next, &hints);
assert!(d.is_empty());

Structs

Columns

The set of differences between two column lists.

Context

Shared context passed to all diff computations.

Indices

The set of differences between two index lists.

RenameHints

Hints that tell the diff algorithm which schema items were renamed.

Schema

The top-level diff between two database schemas.

Tables

The set of differences between two table lists.

Types

The diff between named enum types across two schema versions.

Enums

ColumnsItem

A single change detected between two column lists.

IndicesItem

A single change detected between two index lists.

TablesItem

A single change detected between two table lists.

TypesItem

A single change to a named enum type.