saygoodbyye opened a new issue, #1899:
URL: https://github.com/apache/age/issues/1899
**Describe the bug**
Test cypher_delete sometimes fails. Mainly appears when the machine is
running slowly.
**How are you accessing AGE (Command line, driver, etc.)?**
Accessing AGE through command line.
**What data setup do we need to do?**
Apache AGE (master branch) with PostgreSQL (REL_16_STABLE).
**What is the necessary configuration info needed?**
```
./configure CFLAGS=" -Og" --enable-tap-tests --enable-debug --enable-cassert
```
**What is the command that caused the error?**
To reproduce fail several times faster I do this Makefile patch (Only to
reproduce fail faster. This fail may occur even without these changes):
```
diff --git a/Makefile b/Makefile
index 1224fc2a..0d51a9e0 100644
--- a/Makefile
+++ b/Makefile
@@ -85,35 +85,7 @@ SQLS := $(addsuffix .sql,$(SQLS))
DATA_built = $(age_sql)
# sorted in dependency order
-REGRESS = scan \
- graphid \
- agtype \
- catalog \
- cypher \
- expr \
- cypher_create \
- cypher_match \
- cypher_unwind \
- cypher_set \
- cypher_remove \
- cypher_delete \
- cypher_with \
- cypher_vle \
- cypher_union \
- cypher_call \
- cypher_merge \
- cypher_subquery \
- age_global_graph \
- age_load \
- index \
- analyze \
- graph_generation \
- name_validation \
- jsonb_operators \
- list_comprehension \
- map_projection \
- drop
-
+REGRESS=$(shell printf "cypher_delete %.0s" `seq 100` )
srcdir=`pwd`
ag_regress_dir = $(srcdir)/regress
```
Then i run make installcheck:
```
for i in `seq 1000`;do make installcheck || break;done
```
And get:
```
<...>
test cypher_delete... ok 983 ms
test cypher_delete... ok 932 ms
test cypher_delete... ok 938 ms
test cypher_delete... ok 899 ms
test cypher_delete... FAILED 926 ms
test cypher_delete... ok 921 ms
test cypher_delete... ok 883 ms
<...>
```
regression.diffs:
```
diff -U3
/opt/pgpro/ent-14/src/apache-age-test/./regress/expected/cypher_delete.out
/opt/pgpro/ent-14/src/apache-age-test/./regress/results/cypher_delete.out
---
/opt/pgpro/ent-14/src/apache-age-test/./regress/expected/cypher_delete.out
2024-05-22 09:54:54.0 +
+++
/opt/pgpro/ent-14/src/apache-age-test/./regress/results/cypher_delete.out
2024-05-23 11:36:29.531598703 +
@@ -62,14 +62,20 @@
--Should Fail
SELECT * FROM cypher('cypher_delete', $$MATCH(n1)-[e]->(n2) DELETE n1
RETURN n1$$) AS (a agtype);
-ERROR: Cannot delete a vertex that has edge(s). Delete the edge(s) first,
or try DETACH DELETE.
--Cleanup
SELECT * FROM cypher('cypher_delete', $$MATCH(n) DELETE n RETURN n$$) AS (a
agtype) ORDER BY a;
-a
--
- {"id": 844424930131972, "label": "v", "properties": {}}::vertex
- {"id": 844424930131973, "label": "v", "properties": {}}::vertex
-(2 rows)
-
+ERROR: Cannot delete a vertex that has edge(s). Delete the edge(s) first,
or try DETACH DELETE.
--Test 4: DETACH DELETE a vertex
SELECT * FROM cypher('cypher_delete', $$CREATE (:v)-[:e]->(:v)$$) AS (a
agtype);
a
@@ -100,8 +101,9 @@
SELECT * FROM cypher('cypher_delete', $$MATCH(n) RETURN n$$) AS (a agtype);
a
-
+ {"id": 844424930131973, "label": "v", "properties": {}}::vertex
{"id": 844424930131975, "label": "v", "properties": {}}::vertex
-(1 row)
+(2 rows)
--Test 4: DETACH DELETE two vertices tied to the same edge
SELECT * FROM cypher('cypher_delete', $$CREATE (:v)-[:e]->(:v)$$) AS (a
agtype);
@@ -168,18 +170,16 @@
(0 rows)
SELECT * FROM cypher('cypher_delete', $$MATCH(n) DELETE n SET n.lol = 'ftw'
RETURN n$$) AS (a agtype) ORDER BY a;
- a
--
- {"id": 844424930131975, "label": "v", "properties": {"lol": "ftw"}}::vertex
- {"id": 844424930131982, "label": "v", "properties": {"lol": "ftw"}}::vertex
- {"id": 844424930131983, "label": "v", "properties": {"a": 0, "i": 0, "j":
5, "lol": "ftw"}}::vertex
- {"id": 844424930131984, "label": "v", "properties": {"i": 1, "lol":
"ftw"}}::vertex
