| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| LOAD 'age'; |
| SET search_path TO ag_catalog; |
| SELECT create_graph('cypher_merge'); |
| NOTICE: graph "cypher_merge" has been created |
| create_graph |
| -------------- |
| |
| (1 row) |
| |
| /* |
| * Section 1: MERGE with single vertex |
| */ |
| /* |
| * test 1: Single MERGE Clause, path doesn't exist |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MERGE (n {i: "Hello Merge", j: (null IS NULL), k: (null IS NOT NULL)})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| --------------------------------------------------------------------------------------------------------- |
| {"id": 281474976710657, "label": "", "properties": {"i": "Hello Merge", "j": true, "k": false}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 2: Single MERGE Clause, path exists |
| */ |
| --data setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ({i: "Hello Merge", j: (null IS NULL)}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test_query |
| SELECT * FROM cypher('cypher_merge', $$MERGE ({i: "Hello Merge"})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$MERGE ({j: (null IS NULL)})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| --------------------------------------------------------------------------------------------- |
| {"id": 281474976710658, "label": "", "properties": {"i": "Hello Merge", "j": true}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 3: Prev clause returns no results, no data created |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) MERGE ({i: n.i})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| --- |
| (0 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 4: Prev clause has results, path exists |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$CREATE ({i: "Hello Merge"}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) MERGE ({i: n.i})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| ---------------------------------------------------------------------------------- |
| {"id": 281474976710659, "label": "", "properties": {"i": "Hello Merge"}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 5: Prev clause has results, path does not exist (differnt property name) |
| */ |
| --data setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ({i: "Hello Merge"}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) MERGE ({j: n.i})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| ---------------------------------------------------------------------------------- |
| {"id": 281474976710660, "label": "", "properties": {"i": "Hello Merge"}}::vertex |
| {"id": 281474976710661, "label": "", "properties": {"j": "Hello Merge"}}::vertex |
| (2 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 6: MERGE with no prev clause, filters correctly, data created |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ({i: 2}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MERGE (n {i: 1}) RETURN n$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------------- |
| {"id": 281474976710663, "label": "", "properties": {"i": 1}}::vertex |
| (1 row) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| ---------------------------------------------------------------------- |
| {"id": 281474976710662, "label": "", "properties": {"i": 2}}::vertex |
| {"id": 281474976710663, "label": "", "properties": {"i": 1}}::vertex |
| (2 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 7: MERGE with no prev clause, filters correctly, no data created |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ({i: 1}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$CREATE ({i: 1}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$CREATE ({i: 2}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$CREATE () $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MERGE (n {i: 1}) RETURN n$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------------- |
| {"id": 281474976710664, "label": "", "properties": {"i": 1}}::vertex |
| {"id": 281474976710665, "label": "", "properties": {"i": 1}}::vertex |
| (2 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| ---------------------------------------------------------------------- |
| {"id": 281474976710664, "label": "", "properties": {"i": 1}}::vertex |
| {"id": 281474976710665, "label": "", "properties": {"i": 1}}::vertex |
| {"id": 281474976710666, "label": "", "properties": {"i": 2}}::vertex |
| {"id": 281474976710667, "label": "", "properties": {}}::vertex |
| (4 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * Section 2: MERGE with edges |
| */ |
| /* |
| * test 8: MERGE creates edge |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE () $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) MERGE (n)-[:e]->(:v)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n)-[e:e]->(m:v) RETURN n, e, m$$) AS (n agtype, e agtype, m agtype); |
| n | e | m |
| ----------------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------------------ |
| {"id": 281474976710668, "label": "", "properties": {}}::vertex | {"id": 844424930131969, "label": "e", "end_id": 1125899906842625, "start_id": 281474976710668, "properties": {}}::edge | {"id": 1125899906842625, "label": "v", "properties": {}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 9: edge already exists |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ()-[:e]->() $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MERGE (n)-[:e]->(:v)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n)-[e:e]->(m:v) RETURN n, e, m$$) AS (n agtype, e agtype, m agtype); |
| n | e | m |
| ----------------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------------------ |
| {"id": 281474976710671, "label": "", "properties": {}}::vertex | {"id": 844424930131971, "label": "e", "end_id": 1125899906842626, "start_id": 281474976710671, "properties": {}}::edge | {"id": 1125899906842626, "label": "v", "properties": {}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 10: edge doesn't exist, using MATCH |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE () $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) MERGE (n)-[:e]->(:v)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n)-[e:e]->(m:v) RETURN n, e, m$$) AS (n agtype, e agtype, m agtype); |
| n | e | m |
| ----------------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------------------ |
| {"id": 281474976710672, "label": "", "properties": {}}::vertex | {"id": 844424930131972, "label": "e", "end_id": 1125899906842627, "start_id": 281474976710672, "properties": {}}::edge | {"id": 1125899906842627, "label": "v", "properties": {}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 11: edge already exists, using MATCH |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ()-[:e]->() $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) MERGE (n)-[:e]->(:v)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n)-[e:e]->(m:v) RETURN n, e, m$$) AS (n agtype, e agtype, m agtype); |
| n | e | m |
| ----------------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------------------ |
| {"id": 281474976710673, "label": "", "properties": {}}::vertex | {"id": 844424930131974, "label": "e", "end_id": 1125899906842628, "start_id": 281474976710673, "properties": {}}::edge | {"id": 1125899906842628, "label": "v", "properties": {}}::vertex |
| {"id": 281474976710674, "label": "", "properties": {}}::vertex | {"id": 844424930131975, "label": "e", "end_id": 1125899906842629, "start_id": 281474976710674, "properties": {}}::edge | {"id": 1125899906842629, "label": "v", "properties": {}}::vertex |
| (2 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 12: Partial Path Exists, creates whole path |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ()-[:e]->() $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MERGE ()-[:e]->()-[:e]->()$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| --Returns 3. One for the data setup and 2 for the longer path in MERGE |
| SELECT count(*) FROM cypher('cypher_merge', $$MATCH p=()-[e:e]->() RETURN p$$) AS (p agtype); |
| count |
| ------- |
| 3 |
| (1 row) |
| |
| -- Returns 1, the path created in MERGE |
| SELECT count(*) FROM cypher('cypher_merge', $$MATCH p=()-[:e]->()-[]->() RETURN p$$) AS (p agtype); |
| count |
| ------- |
| 1 |
| (1 row) |
| |
| -- 5 vertices total should have been created |
| SELECT count(*) FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| count |
| ------- |
| 5 |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 13: edge doesn't exists (differnt label), using MATCH |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ()-[:e]->() $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) MERGE (n)-[:e_new]->(:v)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n)-[e]->(m:v) RETURN n, e, m$$) AS (n agtype, e agtype, m agtype); |
| n | e | m |
| ----------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------------------ |
| {"id": 281474976710680, "label": "", "properties": {}}::vertex | {"id": 1407374883553281, "label": "e_new", "end_id": 1125899906842630, "start_id": 281474976710680, "properties": {}}::edge | {"id": 1125899906842630, "label": "v", "properties": {}}::vertex |
| {"id": 281474976710681, "label": "", "properties": {}}::vertex | {"id": 1407374883553282, "label": "e_new", "end_id": 1125899906842631, "start_id": 281474976710681, "properties": {}}::edge | {"id": 1125899906842631, "label": "v", "properties": {}}::vertex |
| (2 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 14: edge doesn't exists (different label), without MATCH |
| */ |
| -- setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE ()-[:e]->() $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MERGE (n)-[:e_new]->(:v)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n)-[e]->(m:v) RETURN n, e, m$$) AS (n agtype, e agtype, m agtype); |
| n | e | m |
| ----------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------------------ |
| {"id": 281474976710684, "label": "", "properties": {}}::vertex | {"id": 1407374883553283, "label": "e_new", "end_id": 1125899906842632, "start_id": 281474976710684, "properties": {}}::edge | {"id": 1125899906842632, "label": "v", "properties": {}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * Section 3: MERGE with writing clauses |
| */ |
| /* |
| * test 15: |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$CREATE () MERGE (n)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (n agtype); |
| n |
| ---------------------------------------------------------------- |
| {"id": 281474976710685, "label": "", "properties": {}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 16: |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$CREATE (n) WITH n as a MERGE (a)-[:e]->() $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH p=()-[:e]->() RETURN p$$) AS (p agtype); |
| p |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710687, "label": "", "properties": {}}::vertex, {"id": 844424930131981, "label": "e", "end_id": 281474976710688, "start_id": 281474976710687, "properties": {}}::edge, {"id": 281474976710688, "label": "", "properties": {}}::vertex]::path |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 17: |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$CREATE (n) MERGE (n)-[:e]->() $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH p=()-[:e]->() RETURN p$$) AS (p agtype); |
| p |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710689, "label": "", "properties": {}}::vertex, {"id": 844424930131982, "label": "e", "end_id": 281474976710690, "start_id": 281474976710689, "properties": {}}::edge, {"id": 281474976710690, "label": "", "properties": {}}::vertex]::path |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 18: |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$CREATE (n {i : 1}) SET n.i = 2 MERGE ({i: 2}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (a) RETURN a$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------------- |
| {"id": 281474976710691, "label": "", "properties": {"i": 2}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 19: |
| */ |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$CREATE (n {i : 1}) SET n.i = 2 WITH n as a MERGE ({i: 2}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (a) RETURN a$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------------- |
| {"id": 281474976710692, "label": "", "properties": {"i": 2}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 20: |
| */ |
| --data setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE (n {i : 1})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n {i : 1}) SET n.i = 2 WITH n as a MERGE ({i: 2}) $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate created correctly |
| SELECT * FROM cypher('cypher_merge', $$MATCH (a) RETURN a$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------------- |
| {"id": 281474976710693, "label": "", "properties": {"i": 2}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 21: |
| */ |
| --data setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE (n {i : 1})$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n {i : 1}) DELETE n MERGE (n)-[:e]->() $$) AS (a agtype); |
| ERROR: vertex assigned to variable n was deleted |
| --validate, transaction was rolled back because of the error message |
| SELECT * FROM cypher('cypher_merge', $$MATCH (a) RETURN a$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------------- |
| {"id": 281474976710694, "label": "", "properties": {"i": 1}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 22: |
| * MERGE after MERGE |
| */ |
| SELECT * FROM cypher('cypher_merge', $$ |
| CREATE (n:Person {name : "Rob Reiner", bornIn: "New York"}) |
| $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$ |
| CREATE (n:Person {name : "Michael Douglas", bornIn: "New Jersey"}) |
| $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$ |
| CREATE (n:Person {name : "Martin Sheen", bornIn: "Ohio"}) |
| $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$ |
| MATCH (person:Person) |
| MERGE (city:City {name: person.bornIn}) |
| MERGE (person)-[r:BORN_IN]->(city) |
| RETURN person.name, person.bornIn, city |
| $$) AS (name agtype, bornIn agtype, city agtype); |
| name | bornin | city |
| -------------------+--------------+----------------------------------------------------------------------------------------- |
| "Rob Reiner" | "New York" | {"id": 1970324836974593, "label": "City", "properties": {"name": "New York"}}::vertex |
| "Martin Sheen" | "Ohio" | {"id": 1970324836974595, "label": "City", "properties": {"name": "Ohio"}}::vertex |
| "Michael Douglas" | "New Jersey" | {"id": 1970324836974594, "label": "City", "properties": {"name": "New Jersey"}}::vertex |
| (3 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (a) RETURN a$$) AS (a agtype); |
| a |
| ------------------------------------------------------------------------------------------------------------------------ |
| {"id": 1688849860263937, "label": "Person", "properties": {"name": "Rob Reiner", "bornIn": "New York"}}::vertex |
| {"id": 1688849860263938, "label": "Person", "properties": {"name": "Michael Douglas", "bornIn": "New Jersey"}}::vertex |
| {"id": 1688849860263939, "label": "Person", "properties": {"name": "Martin Sheen", "bornIn": "Ohio"}}::vertex |
| {"id": 1970324836974593, "label": "City", "properties": {"name": "New York"}}::vertex |
| {"id": 1970324836974594, "label": "City", "properties": {"name": "New Jersey"}}::vertex |
| {"id": 1970324836974595, "label": "City", "properties": {"name": "Ohio"}}::vertex |
| (6 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 23: |
| */ |
| SELECT * FROM cypher('cypher_merge', $$MERGE ()-[:e]-()$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH p=()-[]->() RETURN p$$) AS (a agtype); |
| a |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710695, "label": "", "properties": {}}::vertex, {"id": 844424930131983, "label": "e", "end_id": 281474976710696, "start_id": 281474976710695, "properties": {}}::edge, {"id": 281474976710696, "label": "", "properties": {}}::vertex]::path |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 24: |
| */ |
| SELECT * FROM cypher('cypher_merge', $$MERGE (a) RETURN a$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------- |
| {"id": 281474976710697, "label": "", "properties": {}}::vertex |
| (1 row) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH (a) RETURN a$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------- |
| {"id": 281474976710697, "label": "", "properties": {}}::vertex |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 25: |
| */ |
| SELECT * FROM cypher('cypher_merge', $$MERGE p=()-[:e]-() RETURN p$$) AS (a agtype); |
| a |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710698, "label": "", "properties": {}}::vertex, {"id": 844424930131984, "label": "e", "end_id": 281474976710699, "start_id": 281474976710698, "properties": {}}::edge, {"id": 281474976710699, "label": "", "properties": {}}::vertex]::path |
| (1 row) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH p=()-[]->() RETURN p$$) AS (a agtype); |
| a |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710698, "label": "", "properties": {}}::vertex, {"id": 844424930131984, "label": "e", "end_id": 281474976710699, "start_id": 281474976710698, "properties": {}}::edge, {"id": 281474976710699, "label": "", "properties": {}}::vertex]::path |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 26: |
| */ |
| SELECT * FROM cypher('cypher_merge', $$MERGE (a)-[:e]-(b) RETURN a$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------- |
| {"id": 281474976710700, "label": "", "properties": {}}::vertex |
| (1 row) |
| |
| --validate |
| SELECT * FROM cypher('cypher_merge', $$MATCH p=()-[]->() RETURN p$$) AS (a agtype); |
| a |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710700, "label": "", "properties": {}}::vertex, {"id": 844424930131985, "label": "e", "end_id": 281474976710701, "start_id": 281474976710700, "properties": {}}::edge, {"id": 281474976710701, "label": "", "properties": {}}::vertex]::path |
| (1 row) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * test 27: |
| */ |
| SELECT * FROM cypher('cypher_merge', $$CREATE p=()-[:e]->() RETURN p$$) AS (a agtype); |
| a |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710702, "label": "", "properties": {}}::vertex, {"id": 844424930131986, "label": "e", "end_id": 281474976710703, "start_id": 281474976710702, "properties": {}}::edge, {"id": 281474976710703, "label": "", "properties": {}}::vertex]::path |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$MERGE p=()-[:e]-() RETURN p$$) AS (a agtype); |
| a |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [{"id": 281474976710702, "label": "", "properties": {}}::vertex, {"id": 844424930131986, "label": "e", "end_id": 281474976710703, "start_id": 281474976710702, "properties": {}}::edge, {"id": 281474976710703, "label": "", "properties": {}}::vertex]::path |
| [{"id": 281474976710703, "label": "", "properties": {}}::vertex, {"id": 844424930131986, "label": "e", "end_id": 281474976710703, "start_id": 281474976710702, "properties": {}}::edge, {"id": 281474976710702, "label": "", "properties": {}}::vertex]::path |
| (2 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * Section 4: Error Messages |
| */ |
| /* |
| * test 28: |
| * Only single paths allowed |
| */ |
| SELECT * FROM cypher('cypher_merge', $$MERGE (n), (m) RETURN n, m$$) AS (a agtype, b agtype); |
| ERROR: syntax error at or near "," |
| LINE 8: SELECT * FROM cypher('cypher_merge', $$MERGE (n), (m) RETURN... |
| ^ |
| /* |
| * test 29: |
| * Edges cannot reference existing variables |
| */ |
| SELECT * FROM cypher('cypher_merge', $$MATCH ()-[e]-() MERGE ()-[e]->()$$) AS (a agtype); |
| ERROR: variable e already exists |
| LINE 5: ...cypher('cypher_merge', $$MATCH ()-[e]-() MERGE ()-[e]->()$$)... |
| ^ |
| /* |
| * test 30: |
| * NULL vertex given to MERGE |
| */ |
| --data setup |
| SELECT * FROM cypher('cypher_merge', $$CREATE (n)$$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| --test query |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) OPTIONAL MATCH (n)-[:e]->(m) MERGE (m)$$) AS (a agtype); |
| ERROR: Existing variable m cannot be NULL in MERGE clause |
| -- validate only 1 vertex exits |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) RETURN n$$) AS (a agtype); |
| a |
| ---------------------------------------------------------------- |
| {"id": 281474976710704, "label": "", "properties": {}}::vertex |
| (1 row) |
| |
| -- |
| -- MERGE/SET test |
| -- Node does exist, then set (github issue #235) |
| SELECT * FROM cypher('cypher_merge', $$ CREATE (n:node {name: 'Jason'}) RETURN n $$) AS (n agtype); |
| n |
| ------------------------------------------------------------------------------------ |
| {"id": 2533274790395905, "label": "node", "properties": {"name": "Jason"}}::vertex |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MATCH (n:node) RETURN n $$) AS (n agtype); |
| n |
| ------------------------------------------------------------------------------------ |
| {"id": 2533274790395905, "label": "node", "properties": {"name": "Jason"}}::vertex |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MERGE (n:node {name: 'Jason'}) SET n.name = 'Lisa' RETURN n $$) AS (n agtype); |
| n |
| ----------------------------------------------------------------------------------- |
| {"id": 2533274790395905, "label": "node", "properties": {"name": "Lisa"}}::vertex |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MATCH (n:node) RETURN n $$) AS (n agtype); |
| n |
| ----------------------------------------------------------------------------------- |
| {"id": 2533274790395905, "label": "node", "properties": {"name": "Lisa"}}::vertex |
| (1 row) |
| |
| -- Node doesn't exist, is created, then set |
| SELECT * FROM cypher('cypher_merge', $$ MATCH (n:node) DELETE n $$) AS (n agtype); |
| n |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MATCH (n:node) RETURN n $$) AS (n agtype); |
| n |
| --- |
| (0 rows) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MERGE (n:node {name: 'Jason'}) SET n.name = 'Lisa' RETURN n $$) AS (n agtype); |
| n |
| ----------------------------------------------------------------------------------- |
| {"id": 2533274790395906, "label": "node", "properties": {"name": "Lisa"}}::vertex |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MATCH (n:node) RETURN n $$) AS (n agtype); |
| n |
| ----------------------------------------------------------------------------------- |
| {"id": 2533274790395906, "label": "node", "properties": {"name": "Lisa"}}::vertex |
| (1 row) |
| |
| -- Multiple SETs |
| SELECT * FROM cypher('cypher_merge', $$ MERGE (n:node {name: 'Lisa'}) SET n.age = 23, n.gender = "Female" RETURN n $$) AS (n agtype); |
| n |
| ------------------------------------------------------------------------------------------------------------------ |
| {"id": 2533274790395906, "label": "node", "properties": {"age": 23, "name": "Lisa", "gender": "Female"}}::vertex |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MATCH (n:node) RETURN n $$) AS (n agtype); |
| n |
| ------------------------------------------------------------------------------------------------------------------ |
| {"id": 2533274790395906, "label": "node", "properties": {"age": 23, "name": "Lisa", "gender": "Female"}}::vertex |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MERGE (n:node {name: 'Jason'}) SET n.name = 'Lisa', n.age = 23, n.gender = 'Female' RETURN n $$) AS (n agtype); |
| n |
| ------------------------------------------------------------------------------------------------------------------ |
| {"id": 2533274790395907, "label": "node", "properties": {"age": 23, "name": "Lisa", "gender": "Female"}}::vertex |
| (1 row) |
| |
| SELECT * FROM cypher('cypher_merge', $$ MATCH (n:node) RETURN n $$) AS (n agtype); |
| n |
| ------------------------------------------------------------------------------------------------------------------ |
| {"id": 2533274790395906, "label": "node", "properties": {"age": 23, "name": "Lisa", "gender": "Female"}}::vertex |
| {"id": 2533274790395907, "label": "node", "properties": {"age": 23, "name": "Lisa", "gender": "Female"}}::vertex |
| (2 rows) |
| |
| --clean up |
| SELECT * FROM cypher('cypher_merge', $$MATCH (n) DETACH DELETE n $$) AS (a agtype); |
| a |
| --- |
| (0 rows) |
| |
| /* |
| * Clean up graph |
| */ |
| SELECT drop_graph('cypher_merge', true); |
| NOTICE: drop cascades to 9 other objects |
| DETAIL: drop cascades to table cypher_merge._ag_label_vertex |
| drop cascades to table cypher_merge._ag_label_edge |
| drop cascades to table cypher_merge.e |
| drop cascades to table cypher_merge.v |
| drop cascades to table cypher_merge.e_new |
| drop cascades to table cypher_merge."Person" |
| drop cascades to table cypher_merge."City" |
| drop cascades to table cypher_merge."BORN_IN" |
| drop cascades to table cypher_merge.node |
| NOTICE: graph "cypher_merge" has been dropped |
| drop_graph |
| ------------ |
| |
| (1 row) |
| |
