Module diff 

Pure-function diff over the IR.

diff(target, source) returns a ChangeSet describing every structural difference between two Catalog snapshots. No SQL is generated here — that is the job of phases 5+ (planner, rewrites).

Direction

diff(target, source) describes the changes needed to take the target catalog and turn it into the source catalog. In pgevolve terminology, the “target” is the live database and the “source” is the desired state declared in *.sql files; running the resulting plan converges target to source.

Re-exports

pub use change::Change;

pub use change::ChangeEntry;

pub use change::ExtensionChange;

pub use change::FunctionChange;

pub use change::MvChange;

pub use change::ProcedureChange;

pub use change::TableChange;

pub use change::TriggerChange;

pub use change::UserTypeChange;

pub use change::ViewChange;

pub use changeset::ChangeSet;

pub use changeset::RevokeWithOwnerObservation;

pub use changeset::UnmanagedGrantObservation;

pub use cluster::ClusterChange;

pub use cluster::ClusterChangeEntry;

pub use cluster::ClusterChangeSet;

pub use cluster::diff_cluster;

pub use destructiveness::Destructiveness;

pub use owner_op::AlterObjectOwner;

pub use owner_op::OwnerObjectKind;

pub use routines::diff_functions;

pub use routines::diff_procedures;

pub use sequence_op::SequenceOp;

pub use sequence_op::SequenceOpEntry;

pub use table_op::TableOp;

pub use table_op::TableOpEntry;

Modules

change

Change — one entry in a ChangeSet.

changeset

ChangeSet — an unordered collection of ChangeEntry values, plus two observation accumulators for downstream lint rules.

cluster

Cluster diffing.

columns

Column-level diffing inside an AlterTable.

constraints

Constraint-level diffing inside an AlterTable.

default_privileges

Diff ALTER DEFAULT PRIVILEGES rules.

destructiveness

Destructiveness — risk classification attached to every diff change.

extensions

Differ for Catalog::extensions.

grants

Shared grant-list diffing with lenient drift policy.

indexes

Index-level diffing.

owner_op

AlterObjectOwner — uniform owner-change op across grantable families.

policies

Per-table policy diffing + RLS toggles.

publications

Differ for publications. Pair by name; per-publication granular diff.

reloptions

Sparse-delta diffing for storage reloptions. Lenient policy: source None always means “skip”; catalog values not in source surface as unmanaged-reloption lint, never RESET.

routines

Diff functions and procedures.

schemas

Schema-level diffing.

sequence_op

SequenceOp — per-sequence field updates.

sequences

Sequence-level diffing.

table_op

TableOp — per-table column / constraint operations.

tables

Table-level diffing.

triggers

Differ for Catalog::triggers.

types

Diff user-defined types (enums, domains, composites).

views

View / MV diff and OR-REPLACE compatibility.

Functions

diff

Compute the changes needed to converge target toward source.