(6.x) Cypher filtering many to many relationships

[mjfwebb]

Description

This PR adds the ability to filter on many to many (m:m) relationship cypher fields. An example:

Type definitions:

type Movie @node {
    title: String
    actors: [Actor!]!
        @cypher(
            statement: """
            MATCH (this)<-[:ACTED_IN]-(actor:Actor)
            RETURN actor
            """
            columnName: "actor"
        )
}

type Actor @node {
    name: String
    movies: [Movie!]!
        @cypher(
            statement: """
            MATCH (this)-[:ACTED_IN]->(movie:Movie)
            RETURN movie
            """
            columnName: "movie"
        )
}

You can now query with a filter based on the actors field:

query {
  movies(where: { actors: { name: "Jada Pinkett Smith" } }) {
      title
  }
}

Complexity

Medium

Issue

Closes #554.

Checklist

The following requirements should have been met (depending on the changes in the branch):

• Documentation has been updated
• TCK tests have been updated
• Integration tests have been updated
• Example applications have been updated
• New files have copyright header
• CLA (https://neo4j.com/developer/cla/) has been signed

[changeset-bot]

🦋 Changeset detected

Latest commit: 2425b21

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@neo4j/graphql	Minor

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[neo4j-team-graphql]

Performance Report

No Performance Changes

Show Full Table

name	dbHits	old dbHits	time (ms)	old time (ms)	maxRows
aggregations.TopLevelAggregate	3404	3404	36	44	1134
aggregations.TopLevelAggregateWithMultipleFields	6802	6802	55	61	1134
aggregations.NestedAggregation	15407	15407	58	82	2174
aggregations.AggregationWithWhere	10833	10833	48	76	2174
aggregations.AggregationWhereWithinNestedRelationships	20097917	20097917	1985	2018	2008534
aggregations.AggregationWhereWithinNestedConnections	20097917	20097917	1956	2012	2008534
aggregations.NestedCountFromMovieToActors	8603	8603	31	41	2174
aggregations.NestedCountFromActorsToMovie	8791	8791	34	49	2174
aggregations.DeeplyNestedCount	10052335	10052335	2387	2840	2008534
aggregations.InterfacesAggregations	6242	6242	45	53	2080
aggregations.InterfacesAggregationsWithTwoFields	11444	11444	74	86	2080
batch-create.BatchCreate	4200	4200	146	158	600
batch-create.BatchCreateSmall	77	77	52	68	11
connect.createAndConnect	6433	6433	133	176	3003
connections.Connection	12951	12951	62	79	2174
connections.NestedConnection	37705	37705	123	143	4516
create.SimpleMutation	7	7	56	65	1
cypher-directive.TopLevelMutationDirective	1135	1135	23	29	1134
delete.SimpleDelete	19401	19401	653	681	1040
2925.SingleRelationshipFilter	5245	5245	38	59	1040
2925.SingleRelationshipRequiredFilter	5201	5201	34	42	1040
query.SimpleQuery	3121	3121	21	22	1040
query.SimpleQueryWithRelationship	15031	15031	41	51	2174
query.SimpleQueryWithNestedWhere	8713	8713	46	59	2154
query.Nested	10084891	10084891	6186	6447	2008534
query.NestedWithFilter	10064992	10064992	6016	6099	2004000
query.OrFilterOnRelationships	36958	36767	151	172	2031
query.QueryWithNestedIn	14480	14480	53	56	1960
query.NestedConnectionWhere	8703	8703	50	75	2174
query.DeeplyNestedConnectionWhere	8702	8702	68	89	2174
query.DeeplyNestedWithRelationshipFilters	17357	17357	132	178	1552
query.NestedWithRelationshipSingleFilters	3808	3808	145	223	1134
query.Fulltext	64	64	31	52	16
query.FulltextWithNestedQuery	516	516	41	74	84
sorting-and-cypher.TopLevelSortWithCypher	12961	12961	49	58	2174
sorting-and-cypher.TopLevelConnectionSortWithCypher	12961	12961	70	67	2174
sorting-and-cypher.TopLevelSortWithCypherWithNested	13096	13096	54	65	2174
sorting-and-cypher.TopLevelConnectionSortWithCypherWithNested	13096	13096	88	104	2174
sorting-and-cypher.TopLevelSortWithExpensiveCypher	13725	13725	97	124	2174
sorting-and-cypher.TopLevelConnectionSortWithExpensiveCypher	13266	13266	106	112	2174
sorting.SortMultipleTypes	3436	3436	81	116	1040
sorting.SortMultipleTypesWithCypherWithCypher	13321	13321	101	112	2174
sorting.SortOnNestedFields	12951	12951	40	46	2174
sorting.SortDeeplyNestedFields	39785	39785	95	83	4516
sorting.ConnectionWithSort	3271	3271	71	78	1040
unions.SimpleUnionQuery	321	321	54	66	35
unions.SimpleUnionQueryWithMissingFields	293	293	52	56	35
unions.NestedUnion	309975	309975	257	271	33033
unions.NestedUnionWithMissingFields	283949	283949	253	337	33033
update.NestedUpdate	14137	14137	98	104	2002

Old Schema Generation: 26.208s
Schema Generation: 26.095s
Old Subgraph Schema Generation: 26.055s
Subgraph Schema Generation: 27.669s