Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

[1.0.1] - 2026-07-03

Added

Getting-started Livebook guide (notebooks/getting_started.livemd), rendered in the docs and executed against Apache AGE in CI.

1.0.0 - 2026-07-03

The first stable release. A large, mostly additive expansion over 0.2.x: multitenancy (:attribute and :context), graph edges, bounded traversal, DB-enforced RLS, sensitive-data classification, raw Cypher, bulk create, and composite primary keys. Existing 0.2.x builds are unaffected until you upgrade.

Upgrading from 0.2.x

A few behavior changes to check before upgrading (the rest is new capability):

update/destroy on a missing or filter-excluded row now return Ash.Error.Changes.StaleRecord (previously Ash.Error.Query.NotFound; destroy previously returned :ok on a no-match). Update any code that pattern-matches on the old error.
update/destroy now honor changeset.filter — mutations are scoped by the tenant/policy filter Ash attaches, not matched by primary key alone. This closes a cross-tenant write/delete gap; behavior changes only if you relied on the previous unscoped matching.
AshAge.DataLayer.Info.attribute_types/1 now returns {type, constraints} tuples (was bare types). Only affects code calling that introspection helper directly.
New compile-time checks reject a primary key listed in age skip and a binary-typed multitenancy discriminator — both were already silently broken (perpetual StaleRecord / inconsistent scoping).

Binary attribute storage ( $age64$ ), range/sort rejection on binary storage, and sensitive classification are new and do not affect existing non-binary resources.

Added

Sensitive classification (S7). age do sensitive [:attrs] end + AshAge.DataLayer.Info.sensitive/1: fail-closed compile-time verifier (ValidateSensitive) — each sensitive attribute must be binary-storage-typed (app-side-encrypted bytes) or skipped; the multitenancy discriminator cannot be sensitive; sensitive-named edge properties require binary-storage-typed declared arguments (verified again at runtime on the edge write path). Spark surfaces verifier errors as compiler diagnostics; build with --warnings-as-errors to make them blocking.
ValidateSkip verifier: a primary-key attribute in age skip is now a verifier error (previously: every update/destroy silently returned StaleRecord).
usage-rules/README "Sensitive Data" guidance: searchable-vs-encrypted, erasure/crypto-shred, AshPaperTrail, plaintext-discriminator rationale.
DB-enforced RLS (S6). Opt-in :attribute-only PostgreSQL Row-Level Security, a defense-in-depth read-confidentiality backstop beneath Ash's app-layer tenant filter:
```
age do
  graph :my_graph
  repo MyApp.Repo
  rls_guc "ash_age.tenant_id"
end
```
- AshAge.DataLayer.Info.rls_guc/1 reads the DSL option; a compile-time verifier (AshAge.DataLayer.Verifiers.ValidateMultitenancyAttr) requires :attribute multitenancy and rejects global? true (a global read sets no GUC, so RLS would hide every row).
- AshAge.Migration.enable_tenant_rls/2 (resource-derived) and /5 (explicit graph/label/tenant-property/GUC) emit ENABLE/FORCE ROW LEVEL SECURITY, a functional btree index on the tenant discriminator, and a fail-closed expression policy over properties (current_setting(guc, true) <> '' AND <discriminator> = current_setting(guc, true)) — never a GENERATED ALWAYS ... STORED column.
- All five CRUD callbacks (read, create, update, destroy, bulk_create) and traversal (AshAge.ManualRelationships.Traverse) route through a new with_rls/4 wrapper: off (no rls_guc) is a no-op; on, it set_configs the GUC inside repo.transaction (pinning one connection) before running the operation, and fails closed with :rls_tenant_required on a blank/nil tenant before any query runs. unwrap_rls/2 normalizes the result back to the data-layer contract. A new rls? key joins the value-free telemetry metadata allowlist.
- AshAge.with_tenant_rls/4 — the auditable way to tenant-scope raw AshAge.cypher/5 calls: runs fun inside a transaction with the GUC set_config'd on the same pinned connection.
- mix ash_age.verify --resource MyApp.Doc detects RLS drift (RLS not enabled, or a policy that doesn't reference both the tenant property and the GUC) and now exits non-zero on any failing check (previously always exited 0).
- Three load-bearing AGE constraints this design is built around (each verified live against apache/age:release_PG16_1.6.0):
  1. A GENERATED ALWAYS ... STORED column on an AGE label table segfaults every cypher() write (signal 11, crash + recovery) — the RLS predicate must be a live expression over properties, never a generated column.
  2. AGE cypher() CREATE bypasses WITH CHECK — a cross-tenant INSERT is not RLS-denied at the database. RLS is read/target-side only; the :attribute app-layer force-set (Ash core) remains the actual write barrier.
  3. RLS (including FORCE ROW LEVEL SECURITY) is silently skipped for superusers and roles with BYPASSRLS — the application's DB role must be a non-superuser without BYPASSRLS, or the policy never applies with no error signal.
- For :attribute resources, RLS's row-scoping is redundant to (jointly enforced with) Ash's own tenant WHERE filter — RLS's distinct value is the DB-enforced read-confidentiality backstop beneath the app layer, not a replacement for it.
Traversal (S5). AshAge.ManualRelationships.Traverse — bounded variable-length graph traversal exposed as an Ash manual relationship:
```
has_many :descendants, MyApp.Node do
  manual {AshAge.ManualRelationships.Traverse,
          edge_label: :LINK, direction: :outgoing, min_depth: 1, max_depth: 3}
end
```
- Returns a source-primary-key-keyed map of materialized destination records, deduped per source (in Elixir, by destination PK — no SQL DISTINCT, so row_count telemetry stays a genuine pre-dedup fan-out signal) and cardinality-aware (has_one → one record, has_many → list).
- All three directions — :outgoing, :incoming, and undirected :both.
- max_depth is required and bounded (integer >= 1); an unbounded * is forbidden. min_depth defaults to 1. Both single and composite primary keys on source and destination are supported.
- Fail-closed tenancy. :context resolves the per-tenant graph (nil/blank tenant fails closed); :attribute scopes every node on the path to $tenant via a fixed-length UNION expansion — one basic MATCH branch per length in min_depth..max_depth, each node AND-scoped to the discriminator, UNION ALL-joined. (This AGE build's Cypher parser rejects the ALL(n IN nodes(p) WHERE …) per-hop predicate, so the UNION expansion is the shipped mechanism — see probes below.)
- Emits a value-free :traverse telemetry span with destination_count (post-dedup), row_count (pre-dedup fan-out), depth (max_depth), direction, and result.
Raw Cypher (S5). AshAge.cypher(repo, graph, cypher, params \\ %{}, return_types) — a parameterized escape hatch for queries the Ash DSL cannot express:
```
AshAge.cypher(MyApp.Repo, "my_graph",
  "MATCH (n:Person)-[:KNOWS*1..2]->(m) WHERE n.id = $id RETURN m",
  %{"id" => person_id}, [{:m, :agtype}])
#=> {:ok, [%{m: %AshAge.Type.Vertex{...}}, ...]}
```
- Values reach AGE only as $ parameters; the graph name is validate_identifier!-checked and a $$ break-out in the body is rejected.
- Returns {:ok, [%{column_atom => decoded}]} (each cell a %AshAge.Type.Vertex{} / Edge{} / Path{} or a scalar) or {:error, %AshAge.Errors.QueryFailed{}}.
- Decode boundary: a bare agtype aggregate (collect(n), {k: v}) is returned as its raw agtype string — aggregate decoding is out of scope; use UNWIND.
- Tenancy is explicit: the graph you pass IS the isolation boundary; cypher/5 opens no transaction of its own (wrap in your own tenant-GUC transaction for RLS defense-in-depth).
- Emits a value-free :cypher telemetry span with row_count and result; :depth was added to the telemetry value-free metadata allowlist this slice.
Feasibility probes verifying AGE 1.6.0 behavior this slice depends on: UNWIND + variable-length MATCH (P-S5a = supported); a bound path variable with ALL(n IN nodes(p) WHERE …) (P-S5b = rejected by this AGE build); the fixed-length UNION ALL expansion as its equivalent (P-S5b-UNION = supported); and IN $param list binds (P-S5c = supported).
Data-layer telemetry. Every operation emits a :telemetry.span — [:ash_age, :read | :create | :bulk_create | :update | :destroy | :create_edge | :destroy_edge, :start | :stop | :exception]:
- Metadata is value-free — schema identifiers, counts, booleans, and DSL enums only (resource, multitenancy, tenant?, stale?, properties?, direction, row_count, batch_size, group_count, destination_count, result). Never a PK/property value, error reason, Cypher/filter string, or the tenant-derived graph name.
- AshAge.Telemetry (a new dependency-free module) owns the metadata allowlist and raises on any off-allowlist key — the single enforcement point for the value-free contract.
- :exception fires only on a programmer/config error (e.g. an undeclared edge:); DB errors are returned as redacted {:error, _} tuples and surface as :stop with result: :error.
- :telemetry is now a declared runtime dependency (already resolved transitively via ash/ecto).
Edge CRUD (S4). Two Ash Resource.Change modules for creating and destroying graph edges:
- AshAge.Changes.CreateEdge — creates edges via change {AshAge.Changes.CreateEdge, edge: :name, to: :arg}, parameterized endpoint matching, optional edge properties (values from same-named action arguments, type-serialized as vertex attributes), atomic write inside the action's transaction (0-row match or DB error rolls the vertex back). Tenant-isolated: :context edges are same-graph fail-closed; :attribute edges scope both endpoints by the tenant discriminator.
- AshAge.Changes.DestroyEdge — destroys edges symmetrically, returning Ash.Error.Changes.StaleRecord on 0-row match (already gone or out of scope).
- Edge properties DSL option — a list of property keys, values sourced from same-named action arguments (declared argument type governs serialization: binary → $age64$ -tagged base64, DateTime/Date → ISO8601). Unset properties are sparse (not written as null).
- :both direction — stored as :outgoing, readable via undirected Cypher match from either endpoint (contract for S5 traversal, pinned by integration test).
- Constraint: edge destinations must have a single-attribute primary key.
- Edge-label auto-creation: AGE auto-creates edge labels on first CREATE (verified live by probe P4); no provisioning required. Edge labels are provisioned like vertex labels: via create_edge_label/2 in migrations or :elabels in provision_tenant/3.
Bulk create (S4). can?(:bulk_create) is now true. Ash.bulk_create emits UNWIND $rows AS row CREATE (n:Label) SET n.key = row.key … RETURN n per key-set group:
- Key-set grouping — rows are grouped by which attributes are present, so a row with an optional attribute missing is NOT null-filled to match other rows. Each group's UNWIND emits SET clauses for exactly that group's keys, preserving single-create's sparse stored shape.
- Order-preserving — with return_records?: true records come back mapped to input changesets via bulk_create_index; positional order matches input.
- Binary/date round-trip — values serialize identically to single-create ( $age64$ /ISO8601) and survive nested in the $rows parameter.
- Atomic-per-batch — one UNWIND statement, so any row's DB error fails the whole batch ({:error, …}, not :partial_success). On transaction: :batch (default, Ash wraps the batch), a later-group failure rolls back earlier groups; on transaction: false partial writes are possible (same contract single-create and AshPostgres carry). :context batches with a nil tenant fail closed.
Multitenancy (S3). Both Ash multitenancy strategies are now supported (can?(:multitenancy) → true):
- :attribute — works through Ash core (reads inject a tenant filter, writes force-change the tenant). ash_age adds a fail-closed compile verifier (AshAge.DataLayer.Verifiers.ValidateMultitenancyAttr): the multitenancy attribute must not appear in age do skip [...], or the tenant discriminator would never be written and the core-injected filter would silently match nothing.
- :context — graph-per-tenant physical isolation. set_tenant/3 resolves a per-tenant AGE graph and threads it through reads; writes resolve it from the changeset tenant and fail closed on a missing tenant (there is no global graph). The graph name comes from a collision-free encoder (AshAge.Multitenancy.graph_name/2): identifier-clean tenants (ULID, integer, slug) pass through as t_<tenant>; others (e.g. a UUID) are base32-encoded as g<...>. The two prefixes are disjoint, so distinct tenants never collide. Overridable per resource via a tenant_graph MFA in the age DSL block. Tenants longer than the 63-byte identifier limit fail closed with a value-free error (use tenant_graph).
- AshAge.tenant_graph/2 — public helper so a host derives the same graph name query time uses.
- AshAge.Migration.provision_tenant/3 — idempotent, runtime-safe (and migration-safe) helper the host app calls to create a tenant's graph + labels. Every graph/label is validated as an AGE identifier before use.
- A missing tenant graph fails closed: a query against an unprovisioned :context graph surfaces a redacted database error, never silent empty results.
Live-AGE integration-test harness: a test Ecto.Repo, a Postgrex agtype types module, AshAge.TestDomain, and AshAge.DataCase (Ecto SQL Sandbox + AGE session with a with_graph/3 helper). Integration tests are tagged :integration and run only when AGE_DATABASE_URL is set; the pure-unit suite still runs with no database.
Feasibility probes verifying AGE 1.6.0 behavior later work depends on: bulk UNWIND … SET n.k = row.k (supported), parameterized MATCH (a),(b) … CREATE (a)-[:REL]->(b) (supported), and that ag_catalog.cypher() honors FORCE row-level security under a non-superuser role with a GUC-keyed policy (supported — confirms DB-enforced tenant isolation on AGE is viable).
CI pins the Apache AGE service image by digest (release_PG16_1.6.0, AGE 1.6.0 / PostgreSQL 16) and runs the integration lane against it.
Unit test coverage for the previously untested query-building path: AshAge.Cypher.Parameterized, AshAge.Query, AshAge.Query.Filter, AshAge.Type.Agtype, AshAge.Type.Cast, and AshAge.DataLayer.set_clauses/1 (47 new tests, no database required).
AshAge.DataLayer declares can?(_, :composite_primary_key) == true, so resources with a composite primary key now compile and CRUD correctly.

Fixed

Sensitive data / binary-storage fixes (S7). Filter eq/not_eq/in, primary-key match (update/destroy), traversal ids, and edge endpoint params now encode binary-storage values to the stored $age64$ wire form — equality search on encrypted (binary) attributes and binary primary keys previously never matched (or raised Jason.EncodeError).
Non-JSON-encodable values (raw bytes nested in :map/:list, or a struct with no Jason.Encoder impl nested in a param) now fail closed with a value-free error naming the attribute; previously Jason.EncodeError/Protocol.UndefinedError leaked the raw bytes or inspected value into the exception message.
StaleRecord errors no longer carry primary-key/endpoint values in their filter (Ash inspects it into log messages); the filter keeps field names and replaces each value with "<redacted>".
An update whose primary-key WHERE matches more than one row (duplicate-keyed vertices are creatable outside Ash — AGE enforces no PK uniqueness) now fails closed with a value-free UpdateFailed instead of raising FunctionClauseError across the data-layer callback boundary.
Attribute-to-attribute filter comparisons (attr1 == attr2, and a Ref nested in an in list) now return UnsupportedFilter instead of binding the Ref struct as a parameter and surfacing downstream as a misleading "not JSON-encodable" error.
Ash.Type.NewType wrappers over date/datetime types now coerce stored ISO8601 values back to %Date{}/%DateTime{}/%NaiveDateTime{} on read (previously the raw string was returned, silently breaking traversal key-matching for wrapped date primary keys). Coercion dispatches on the resolved Ash STORAGE class (AshAge.Type.Cast.storage_class/2), the same resolution the binary predicate uses.
Attribute constraints now reach every wire path (encoder, decode gate, filter cast, edge property guard) — a custom type whose storage_type/1 depends on instance constraints can no longer pass the sensitive-classification verifier yet store untagged.
:attribute traversal scopes off the source strategy too (S5 closeout). AshAge.ManualRelationships.Traverse now applies per-node tenant scoping when either the source or the destination resource is :attribute-multitenant. Previously it keyed only on the destination, so a source-:attribute / non-:attribute-destination traversal ran an unscoped query against the shared multi-tenant graph (fail-open); it is now fail-closed on that config too.
Date/DateTime source primary keys associate correctly in traversal (S5 closeout). The traversal F3 source key now coerces the decoded agtype scalar to the source attribute type (via AshAge.Type.Cast.coerce_value/2), so a :date/:utc_datetime/:naive_datetime primary key (stored as an ISO8601 string, held as a struct in the record) matches Ash's manual-result lookup. Previously the raw string key never matched and the source was silently dropped (returned []/nil). UUID/integer/string PKs were unaffected.
In filter handles Ash's MapSet right side (S5). AshAge.Query.Filter now normalizes the MapSet that Ash.Query.Operator.In stores as its right side to a list before emitting n.attr IN $param, so filter(x in ^list) — and nested loads that flow through traversal — work. Previously the MapSet shape fell through to {:error, UnsupportedFilter}.
AshAge.Type.Path decodes AGE's inline-tagged path wire format (S5). A ::path body is an array of individually ::vertex/::edge-tagged agtype elements, not plain JSON; the decoder now splits at top-level commas (depth- and string-literal-aware) and recursively decodes each element. Previously it fed the body to Jason.decode! and raised Jason.DecodeError (first exercised by cypher/5 returning a path, RETURN p).
AshAge.DataLayer.update/2 no longer risks a parameter collision when a resource has an attribute literally named match_id; the internal match parameter now uses a name guaranteed not to clash with a changed attribute.
Setup docs no longer show a Postgrex types snippet that fails to compile: Postgrex.Types.define/3 defines the module itself, so it is now called at the top level (a defmodule wrapper of the same name raises "cannot define module … currently being defined"). The mix ash_age.install output also referenced a non-existent AshAge.Type.Agtype.Extension; the correct module is AshAge.Postgrex.AgtypeExtension. Fixed in the install task, the AshAge moduledoc, and the README.
AshAge.DataLayer.update/2 and destroy/2 derive their match predicate from Ash.Resource.Info.primary_key/1, so resources with a composite primary key or a single non-:id primary key match the correct rows. Both previously hardcoded WHERE n.id = $…, silently matching the wrong rows or nothing.
:binary attributes (including AshCloak-encrypted fields) no longer crash Jason.encode! on create/update. Binary values are stored in a self-identifying wire format ("$age64$" <> base64(value)) and decoded back on read; plaintext strings are untouched. The $age64$ tag makes decoding deterministic — a value ash_age did not encode (legacy or out-of-band data) is returned verbatim, never guess-decoded, even if it is syntactically valid base64.

Changed

Binary-storage behavior changes (S7). Range filters (>, <, >=, <=) on binary-storage attributes return UnsupportedFilter (previously compared the tagged-base64 stored form — silently wrong results). Sort on binary storage is rejected at query build (can?({:sort, :binary}) is false).
Stored binary values not written by ash_age (untagged/legacy/external) are readable verbatim but no longer matchable through Ash filters or mutations (read-only grace): match params now send the tagged form. Migrate such rows or store them as :string.
A binary-storage-typed multitenancy discriminator is now rejected by a verifier (it would scope vertex filters, edge tenant params, traversal, and RLS paths inconsistently).
AshAge.DataLayer.Info.attribute_types/1 now returns {type, constraints} tuples (previously bare types) so constraints reach the encode/decode paths; AshAge.Type.Cast.serialize_value/2 and coerce_value/2 accept both bare types and {type, constraints} specs.
update/2 and destroy/2 now return Ash.Error.Changes.StaleRecord (was Ash.Error.Query.NotFound) when the primary-key + scoping-filter WHERE matches no row — the Ash data-layer contract for a record-based mutation whose row is gone or excluded by a filter (NotFound is for identifier lookups; StaleRecord is what the reference ETS data layer and Ash core return, and what Ash's bulk update/destroy paths pattern-match). destroy/2 previously returned :ok unconditionally on a no-match (DETACH DELETE gives no matched/unmatched signal); it now detects the 0-row case (via RETURN n) and surfaces StaleRecord, so a scoping-denied or already-deleted destroy is observable and consistent with update/2.

Security

Cross-tenant write/delete closed. ash_age now advertises can?(:changeset_filter) → true and honors changeset.filter in update/ destroy, translating it into the Cypher WHERE (AND-ed with the primary-key match). Previously the data layer matched mutations by primary key only and silently dropped the tenant/policy scoping filter Ash attaches, so a fabricated or non-tenant-scoped changeset carrying another tenant's primary key could modify or delete that tenant's rows. Untranslatable filters fail closed (the mutation is rejected, never silently unscoped). This also makes Ash.Policy filters apply to mutations.
Defense-in-depth against Cypher/SQL injection at every identifier interpolation site. All dynamic values were already parameterized; this hardens the identifiers that are interpolated into the query text:
- AshAge.Query.to_cypher/1 now validates the vertex label and every sort field as an AGE identifier before interpolation, and requires offset/limit to be non-negative integers (raising ArgumentError otherwise).
- AshAge.DataLayer create/update validate every property key (SET n.key = $key) and the label as AGE identifiers.
- AshAge.Cypher.Parameterized.build/* now reject any Cypher body containing a $$ sequence — a final centralized guard against breaking out of AGE's dollar-quoted literal.
- AshAge.Cypher.Parameterized now validates return_types column names and types as AGE identifiers before interpolating them into the outer AS (...) record clause (which sits outside AGE's $$ dollar-quote). On the public AshAge.cypher/5 surface these are caller-controlled, so an unvalidated column name was a SQL-injection vector (S5 closeout).
- The $$-body rejection no longer echoes the Cypher body in its ArgumentError message; that raise bypasses the redaction boundary, so a body carrying an interpolated value would otherwise leak it into logs (S5 closeout).
Error messages no longer leak filtered values or database row contents. AshAge.Errors.UnsupportedFilter now reports only the operator and referenced field name (never the filtered value). CreateFailed/QueryFailed/UpdateFailed surface only the PostgreSQL SQLSTATE code (and constraint name), never the Postgres DETAIL line that echoes offending values. A regression test pins the never-interpolate guarantee: values reach Cypher only as the $1 parameter.

0.2.6 - 2026-02-14

Fixed

Removed all phantom references to non-existent modules and features from documentation
usage-rules.md: Corrected Postgrex extension module name (AshAge.Type.Agtype.Extension → AshAge.Postgrex.AgtypeExtension)
usage-rules.md: Removed phantom traverse(), neighbors(), find_path() examples (not implemented)
usage-rules.md: Replaced phantom depth limits section with actual supported capabilities list
AGENTS.md: Removed phantom telemetry and traversal modules from dependency levels and Key Files
AGENTS.md: Removed "Adding a New Traversal Pattern" section referencing non-existent files
AGENTS.md: Removed phantom "Breaking depth limits" from Common Pitfalls
Cleaned up all merged fix branches (local and remote)

0.2.5 - 2026-02-14

Fixed

README installation section showed ~> 0.1.0 instead of current version

0.2.4 - 2026-02-13

Fixed

UUID primary key overwritten by AGE internal integer ID — maybe_put_id used Map.put which unconditionally replaced the UUID extracted from vertex properties; now uses Map.put_new to preserve UUID when present
Static Cypher queries passed NULL as third argument to ag_catalog.cypher() — AGE rejects this with invalid_parameter_value; now omits the params argument entirely for parameterless queries

0.2.3 - 2026-02-13

Fixed

AgtypeExtension.encode/1 missing <<byte_size(value)::int32()>> length prefix required by Postgrex wire protocol
AgtypeExtension.decode/1 missing <<len::int32(), value::binary-size(len)>> extraction — Postgrex sends length-prefixed data on the wire

0.2.2 - 2026-02-13

Fixed

AgtypeExtension.encode/1 returned {:ok, value} tuple instead of raw binary — Postgrex expects iodata, causing ArgumentError on all parameterized queries
Added missing rollback/2 callback to AshAge.DataLayer — Ash calls this to roll back transactions on failure but it was undefined, causing UndefinedFunctionError

0.2.1 - 2026-02-13

Fixed

Error struct field mismatches in data_layer.ex — :message/:detail fields were silently dropped at runtime because the Splode error structs only define :reason (and :query for QueryFailed)
QueryFailed construction in run_query/2 and destroy/2 used non-existent :resource field instead of :query
Removed phantom AshAge.Errors.TraversalDepthExceeded reference from usage-rules.md (module does not exist)
Updated AGENTS.md version history to include v0.2.0 and v0.2.1 changes

0.2.0 - 2026-02-13

Added

AshAge.Type.Edge struct for AGE edge data (id, label, start_id, end_id, properties)
Real agtype parser in AshAge.Type.Agtype — decodes ::vertex, ::edge, ::path suffixes and scalar values
Vertex-to-resource attribute mapping in AshAge.Type.Cast with type coercion (ISO8601 → Date/DateTime)
DSL transformer validation: ValidateGraph, EnsureLabelled, ValidateLabelFormat
Idempotent migration helpers — create_age_graph/1, create_vertex_label/2, create_edge_label/2 now check catalog before creating

Changed

AshAge.DataLayer.Info reads all config dynamically from the resource's Spark DSL instead of hard-coded values
AshAge.Cypher.Parameterized wraps Cypher in ag_catalog.cypher() with JSON-encoded $1 parameter
AshAge.Query generates proper MATCH/WHERE/RETURN/ORDER BY/SKIP/LIMIT Cypher and accumulates params in a map
AshAge.Query.add_param/2 correctly accumulates parameters with $paramN references

Fixed

Postgrex extension module reference: AshAge.Type.Agtype.Extension → AshAge.Postgrex.AgtypeExtension in docs and README
Removed non-existent AshAge.Cypher.Traversal from doc groups in mix.exs

0.1.2 - 2026-02-13

Added

Add AshAge root module with complete setup documentation
Add mix ash_age.install task for printing setup instructions
Add mix ash_age.gen.migration task for generating AGE migrations
Add mix ash_age.verify task for runtime AGE configuration verification
Implement AshAge.Session module with setup/1 for after_connect hook
Implement AshAge.Migration module with graph, label, and index helpers
Add unit tests for Session, Migration, and Mix task modules

0.1.1 - 2026-02-13

Fixed

Add missing :filters and :sort fields to AshAge.Query struct
Fix pattern match arity in AshAge.Query.to_cypher/1
Add module aliases to satisfy Credo strict checks
Replace cond with if/else in AshAge.Type.Agtype
Fix mix docs CI step to use correct MIX_ENV

0.1.0 - 2025-01-01

Added

Initial release of AshAge DataLayer for Apache AGE
Cypher query generation from Ash queries
Vertex and Edge resource support
Custom Ash types: Agtype, Vertex, Edge, Path
Graph creation and management via AshAge.Migration
Session-based AGE graph binding via AshAge.Session
Parameterized Cypher queries for safe value interpolation
Query filtering with Ash filter translation

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