Ctrl K
APOC procedure capability audit (v1.4.3)
The v1.4.3 Go APOC library catalog contained 983 names. Its historical list of 118 procedure-only entries is excluded from the optional plugin's scalar function exports; the other 865 entries are scalar functions. The plugin exports 815: 50 registered scalar names belong to the query engine's 52-name native APOC catalog and are left to their native implementations. pkg/apocmeta owns that catalog once; Cypher's function catalog and apoc.PluginFunctionNames both derive from it. The two native catalog names absent from the Go library do not change its export count. All ten native collection functions (toSet, union, intersection, subtract, contains, containsAll, containsAny, indexOf, occurrences and frequencies) are excluded from the real bundled plugin. Removing a false function declaration does not implement its CALL procedure. Genuine scalar functions, including apoc.math.sigmoid, remain function exports and are not promoted to procedures.
Of those 118 historical entries, 16 have a registered native procedure contract (including the new apoc.cypher.doIt); 102 have no bundled procedure declaration. The table names every remaining gap. A registered contract is not certification of full Neo4j/APOC parity. The new doIt read/write, parameter/result, exact-case, and caller-rollback controls were checked independently against the reference. The generic plugin loader accepts canonical cypher.ProcedureHandler and the existing legacy ABI, so a separately implemented procedure plugin can add real contracts. It does not synthesize them from function registrations.
Evidence and classification
- Core procedure/function kinds were queried from Neo4j 5.26.30 Community (
sha256:3388e05ee53c8313d01acdf33e63ad175af95a92226dc8551160564439ce2c8c) with APOC Core 5.26.30, JAR SHA-2564c60fdab264230d60745d31d55d6cb668e66061daba7c5fa6777ed457b49b798.SHOW PROCEDURESreturned 190 APOC procedures andSHOW FUNCTIONS246 APOC functions: 100 of the historical entries were exact procedure matches and none were functions. - Fifteen additional procedure kinds are confirmed from official APOC Extended 5.26.4
@Proceduredeclarations incypher/CypherExtended.java,load/LoadCsv.java,load/LoadDirectory.java,load/LoadHtml.java,load/LoadLdap.java,load/LoadParquet.java,load/jdbc/Jdbc.java, andlog/Logging.java. Their kind is a source audit, not a claim that their external services were run. - Three historical spellings are mixed-case aliases of actual Core procedures:
apoc.import.graphML→apoc.import.graphml,apoc.neighbors.atHop→apoc.neighbors.athop, andapoc.neighbors.toHop→apoc.neighbors.tohop. These aliases are not genuine scalar functions either. Use the reference's canonical spelling when its procedure is available. - The NornicDB column comes from the actual initialized native procedure registry on the candidate containing the
doItfix. No optional user procedure plugin was installed for that audit.
Historical 118-entry disposition
| Historical catalog name | Reference kind / canonical spelling | Bundled NornicDB CALL contract |
|---|---|---|
apoc.algo.aStar | Core procedure | Registered native contract |
apoc.algo.cover | Core procedure | Not implemented by bundled runtime/plugin |
apoc.algo.dijkstra | Core procedure | Registered native contract |
apoc.atomic.add | Core procedure | Not implemented by bundled runtime/plugin |
apoc.atomic.concat | Core procedure | Not implemented by bundled runtime/plugin |
apoc.atomic.insert | Core procedure | Not implemented by bundled runtime/plugin |
apoc.atomic.remove | Core procedure | Not implemented by bundled runtime/plugin |
apoc.atomic.subtract | Core procedure | Not implemented by bundled runtime/plugin |
apoc.atomic.update | Core procedure | Not implemented by bundled runtime/plugin |
apoc.coll.split | Core procedure | Not implemented by bundled runtime/plugin |
apoc.convert.setJsonProperty | Core procedure | Not implemented by bundled runtime/plugin |
apoc.convert.toTree | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.addLabels | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.node | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.nodes | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.relationship | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.removeLabels | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.removeProperties | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.removeRelProperties | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.setProperties | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.setProperty | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.setRelProperties | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.setRelProperty | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.uuids | Core procedure | Not implemented by bundled runtime/plugin |
apoc.create.vNodes | Core procedure | Not implemented by bundled runtime/plugin |
apoc.cypher.doIt | Core procedure | Registered native contract |
apoc.cypher.mapParallel | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.cypher.parallel | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.cypher.run | Core procedure | Registered native contract |
apoc.cypher.runFile | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.cypher.runMany | Core procedure | Registered native contract |
apoc.graph.from | Core procedure | Not implemented by bundled runtime/plugin |
apoc.graph.fromCypher | Core procedure | Not implemented by bundled runtime/plugin |
apoc.graph.fromData | Core procedure | Not implemented by bundled runtime/plugin |
apoc.graph.fromDocument | Core procedure | Not implemented by bundled runtime/plugin |
apoc.graph.fromPath | Core procedure | Not implemented by bundled runtime/plugin |
apoc.graph.fromPaths | Core procedure | Not implemented by bundled runtime/plugin |
apoc.import.csv | Core procedure | Not implemented by bundled runtime/plugin |
apoc.import.graphML | Core procedure: apoc.import.graphml | Not implemented by bundled runtime/plugin |
apoc.import.json | Core procedure | Registered native contract |
apoc.load.csv | Extended procedure | Registered native contract |
apoc.load.directory | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.load.driver | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.load.html | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.load.jdbc | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.load.jdbcUpdate | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.load.json | Core procedure | Registered native contract |
apoc.load.jsonArray | Core procedure | Registered native contract |
apoc.load.jsonParams | Core procedure | Not implemented by bundled runtime/plugin |
apoc.load.ldap | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.load.parquet | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.load.xml | Core procedure | Not implemented by bundled runtime/plugin |
apoc.lock.all | Core procedure | Not implemented by bundled runtime/plugin |
apoc.lock.nodes | Core procedure | Not implemented by bundled runtime/plugin |
apoc.log.debug | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.log.error | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.log.info | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.log.stream | Core procedure | Not implemented by bundled runtime/plugin |
apoc.log.warn | Extended procedure | Not implemented by bundled runtime/plugin |
apoc.meta.data | Core procedure | Not implemented by bundled runtime/plugin |
apoc.meta.graph | Core procedure | Not implemented by bundled runtime/plugin |
apoc.meta.graphSample | Core procedure | Not implemented by bundled runtime/plugin |
apoc.meta.nodeTypeProperties | Core procedure | Not implemented by bundled runtime/plugin |
apoc.meta.relTypeProperties | Core procedure | Not implemented by bundled runtime/plugin |
apoc.meta.schema | Core procedure | Not implemented by bundled runtime/plugin |
apoc.meta.stats | Core procedure | Not implemented by bundled runtime/plugin |
apoc.meta.subGraph | Core procedure | Not implemented by bundled runtime/plugin |
apoc.neighbors.atHop | Core procedure: apoc.neighbors.athop | Not implemented by bundled runtime/plugin |
apoc.neighbors.toHop | Core procedure: apoc.neighbors.tohop | Registered native contract |
apoc.nodes.collapse | Core procedure | Not implemented by bundled runtime/plugin |
apoc.nodes.cycles | Core procedure | Not implemented by bundled runtime/plugin |
apoc.nodes.delete | Core procedure | Not implemented by bundled runtime/plugin |
apoc.nodes.get | Core procedure | Not implemented by bundled runtime/plugin |
apoc.nodes.group | Core procedure | Not implemented by bundled runtime/plugin |
apoc.nodes.link | Core procedure | Not implemented by bundled runtime/plugin |
apoc.path.expandConfig | Core procedure | Registered native contract |
apoc.path.spanningTree | Core procedure | Registered native contract |
apoc.path.subgraphAll | Core procedure | Registered native contract |
apoc.path.subgraphNodes | Core procedure | Registered native contract |
apoc.periodic.cancel | Core procedure | Not implemented by bundled runtime/plugin |
apoc.periodic.commit | Core procedure | Registered native contract |
apoc.periodic.countdown | Core procedure | Not implemented by bundled runtime/plugin |
apoc.periodic.iterate | Core procedure | Registered native contract |
apoc.periodic.list | Core procedure | Not implemented by bundled runtime/plugin |
apoc.periodic.repeat | Core procedure | Not implemented by bundled runtime/plugin |
apoc.periodic.submit | Core procedure | Not implemented by bundled runtime/plugin |
apoc.periodic.truncate | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.cloneNodes | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.cloneSubgraph | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.cloneSubgraphFromPaths | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.collapseNode | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.deleteAndReconnect | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.extractNode | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.from | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.mergeNodes | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.mergeRelationships | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.normalizeAsBoolean | Core procedure | Not implemented by bundled runtime/plugin |
apoc.refactor.setType | Core procedure | Not implemented by bundled runtime/plugin |
apoc.schema.assert | Core procedure | Not implemented by bundled runtime/plugin |
apoc.schema.nodes | Core procedure | Not implemented by bundled runtime/plugin |
apoc.schema.relationships | Core procedure | Not implemented by bundled runtime/plugin |
apoc.search.node | Core procedure | Not implemented by bundled runtime/plugin |
apoc.search.nodeAll | Core procedure | Not implemented by bundled runtime/plugin |
apoc.search.nodeReduced | Core procedure | Not implemented by bundled runtime/plugin |
apoc.stats.degrees | Core procedure | Not implemented by bundled runtime/plugin |
apoc.text.phoneticDelta | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.add | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.drop | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.install | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.list | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.pause | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.remove | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.removeAll | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.resume | Core procedure | Not implemented by bundled runtime/plugin |
apoc.trigger.show | Core procedure | Not implemented by bundled runtime/plugin |
apoc.util.sleep | Core procedure | Not implemented by bundled runtime/plugin |
apoc.util.validate | Core procedure | Not implemented by bundled runtime/plugin |
apoc.warmup.run | Core procedure | Not implemented by bundled runtime/plugin |
Go handler binding is a separate question
The typed invoker removes the 18-signature dispatcher ceiling and checks arity, conversions, nulls, numeric bounds, returned errors, cancellation and panics. It accepts the reported scalar/list/map signatures. This is not a claim that all 983 library entries implement portable Cypher or Neo4j APOC semantics.
For example, this actual catalog contains the following Go callback/function contracts. Standard Bolt/HTTP Cypher values cannot supply callbacks or carry function results; these need explicit adapters/capability implementations:
| Catalog entry | Go signature |
|---|---|
apoc.coll.partition | func([]interface {}, func(interface {}) bool) [][]interface {} |
apoc.import.batch | func([]interface {}, int, func([]interface {}) error) (*apocimport.ImportResult, error) |
apoc.import.filter | func([]interface {}, func(interface {}) bool) []interface {} |
apoc.import.transform | func([]interface {}, func(interface {}) interface {}) []interface {} |
apoc.json.filter | func(string, func(interface {}) bool) string |
apoc.json.map | func(string, func(interface {}) interface {}) string |
apoc.json.reduce | func(string, interface {}, func(interface {}, interface {}) interface {}) interface {} |
apoc.lock.withLock | func(*lock.Node, func() interface {}) (interface {}, error) |
apoc.lock.withReadLock | func(*lock.Node, func() interface {}) (interface {}, error) |
apoc.log.timer | func(string) func() |
apoc.merge.conflict | func(*merge.Node, map[string]interface {}, func(interface {}, interface {}) interface {}) *merge.Node |
apoc.nodes.batch | func([]*storage.Node, int, func([]*storage.Node) interface {}) []interface {} |
apoc.nodes.filter | func([]*storage.Node, func(*storage.Node) bool) []*storage.Node |
apoc.nodes.map | func([]*storage.Node, func(*storage.Node) interface {}) []interface {} |
apoc.nodes.reduce | func([]*storage.Node, interface {}, func(interface {}, *storage.Node) interface {}) interface {} |
apoc.util.partition | func([]interface {}, func(interface {}) bool) [][]interface {} |
Private APOC entity types, I/O interfaces, and multiple non-error return values also require explicit contracts rather than an automatic claim of transport compatibility. The 102 missing procedure declarations above remain capability gaps after the dispatcher, classification and doIt fixes; this audit does not mark them fixed or establish that issue #1167 is wholly resolved.
Rechecking the plugin export boundary
The plugin source and its regression test use //go:build ignore because this is a separately built Go plugin, not an ordinary package in go test ./.... make plugin-apoc runs the export test explicitly before building the plugin. The focused standalone command (also usable with -race) is:
sh
go test apoc/plugin-src/apoc/apoc_plugin.go apoc/plugin-src/apoc/apoc_plugin_test.gov1.4.4 PageRank Go retirement
The graph-free Go algo.PageRank stub and its scalar registration are retired; CALL apoc.algo.pageRank still uses the native graph implementation. The retired name was not in the 118-name procedure-only classifier, so that historical procedure population was unchanged by PageRank retirement. The separately approved GraphSample retirement below reduces the current procedure-only catalog to 117. Current measured catalog counts are 981 registrations, 864 scalar names and 814 plugin exports after excluding 50 native scalar owners. The native function catalog remains 52.
The historical 983-name totals and table above describe the v1.4.3 audit; they are not the current plugin-export totals.
v1.4.4 GraphSample Go retirement
The exported (*meta.BoundFunctions).GraphSample(sampleSize) and apoc.meta.graphSample registry declaration are retired. The old helper ignored its limit and returned the entire graph; it did not implement sampling. Go callers requiring full metadata should call meta.New(backend).Graph(). The existing apoc.meta.graph registry binding stays on that owner; this does not add a new root-Call invocation plan or Cypher procedure. Rebuild Go callers; there is no compatibility forwarding wrapper. The unsupported Cypher procedure is not added, and Badger keys, persisted payloads, WAL and storage version stay unchanged. The historical v1.4.3 table above is retained as historical evidence.