Query hangs with no error

• EdgeDB Version: EdgeDB 1.3+804c096 (repl 1.1.1-dev.760+ee2c023)
• OS Version: latest Mac

Steps to Reproduce:

1. Run this (simplified) query (to access link annotations from a backlink)

with module schema select Type {
[IS ObjectType].links: {
      indexes :{ name, id },
      annotations :{ name, id },
      ancestors :{ name, id },
      bases :{ 
         name, id, __type__:{name},
         [IS Link].annotations:{name, @value}
      }
   }
} 

It just hangs, but it works with a smaller limit 10-20 and hangs with a limit 100 or no limit.

Here are the logs I could get. These are probably from a previous run of the full query

could not send data to client: Broken pipe
INFO 53024 2022-04-22T15:30:48.943 postgres: WITH "t~1" AS NOT MATERIALIZED  ( (SELECT "expr-4~2"."InheritingObject_value~1" AS "expr~4_value~1", "expr-4~2"."name_value~1" AS "name_value~2", "expr-4~2"."abstract_value~1" AS "abstract_value~2", "expr-4~2"."__type___identity~1" AS "__type___identity~2" FROM LATERAL  (SELECT "InheritingObject~3".id AS "InheritingObject_value~1", "InheritingObject~3"."f3e2ba1c-bda6-11ec-a933-7db634894ef6" AS "name_value~1", "InheritingObject~3"."f3e40e30-bda6-11ec-b69c-4574eb1d3317" AS "abstract_value~1", "InheritingObject~3".__type__ AS "__type___identity~1" FROM edgedbstd."f3e0e55c-bda6-11ec-8415-f95288fe02a3_t" AS "InheritingObject~3" CROSS JOIN LATERAL  (SELECT "expr-2~2"."expr~2_value~1" AS "expr~2_value~2" FROM LATERAL  (SELECT (NOT "InheritingObject~3"."f3e2f89c-bda6-11ec-b734-f576b7f3ab84") AS "expr~2_value~1" ) AS "expr-2~2" ) AS "expr-3~2" WHERE "expr-3~2"."expr~2_value~2" ) AS "expr-4~2" )), "t~5" AS NOT MATERIALIZED  ( (SELECT "expr-34~2"."Type_value~1" AS "expr~34_identity~1", "expr-34~2"."name_value~6" AS "name_value~7" FROM LATERAL  (SELECT "Type~2".id AS "Type_value~1", "Type~2"."f28e4dfc-bda6-11ec-aca4-2141ab93c4c8" AS "name_value~6" FROM edgedbstd."f28c6226-bda6-11ec-8630-914bc003340d_t" AS "Type~2" CROSS JOIN LATERAL  (SELECT "expr-32~2"."expr~32_value~1" AS "expr~32_value~2" FROM LATERAL  (SELECT (NOT "Type~2"."f28e86fa-bda6-11ec-abfb-c396f9a6653b") AS "expr~32_value~1" ) AS "expr-32~2" ) AS "expr-33~2" WHERE "expr-33~2"."expr~32_value~2" ) AS "expr-34~2" )), "t~10" AS NOT MATERIALIZED  ( (SELECT "expr-12~2"."ScalarType_value~1" AS "expr~12_identity~1", "expr-12~2"."enum_values_value~1" AS "enum_values_value~2" FROM LATERAL  (SELECT "ScalarType~2".id AS "ScalarType_value~1", "ScalarType~2"."f5ce0f0c-bda6-11ec-b697-fb7a98e4d909" AS "enum_values_value~1" FROM edgedbstd."f5bbd986-bda6-11ec-b8dc-f97457aa9573_t" AS "ScalarType~2" CROSS JOIN LATERAL  (SELECT "expr-10~2"."expr~10_value~1" AS "expr~10_value~2" FROM LATERAL  (SELECT (NOT "ScalarType~2"."f5bf197a-bda6-11ec-836c-6171c0025d19") AS "expr~10_value~1" ) AS "expr-10~2" ) AS "expr-11~2" WHERE "expr-11~2"."expr~10_value~2" ) AS "expr-12~2" )), "t~12" AS NOT MATERIALIZED  ( (SELECT "expr-16~2"."Constraint_value~1" AS "expr~16_identity~1", "expr-16~2"."name_value~14" AS "name_value~15", "expr-16~2"."expr_serialized~1" AS "expr_serialized~2", "expr-16~2"."subject_identity~1" AS "subject_identity~2", "expr-16~2"."return_typemod_serialized~1" AS "return_typemod_serialized~2", "expr-16~2"."return_type_identity~1" AS "return_type_identity~2", "expr-16~2"."errmessage_serialized~1" AS "errmessage_serialized~2" FROM LATERAL  (SELECT "Constraint~2".id AS "Constraint_value~1", "Constraint~2"."f497f512-bda6-11ec-905a-5d55be18f4f5" AS "name_value~14", "Constraint~2"."f4a2ca14-bda6-11ec-a231-6bfdad7ffce0" AS "expr_serialized~1", "Constraint~2"."f4fc9756-bda6-11ec-a849-9b4f6e084269" AS "subject_identity~1", "Constraint~2"."f49d9ba2-bda6-11ec-86ce-4903a7e63962" AS "return_typemod_serialized~1", "Constraint~2"."f49cea7c-bda6-11ec-8e07-81bcfd0a8ae6" AS "return_type_identity~1", "Constraint~2"."f4a36ea6-bda6-11ec-9575-7b150fa5a82b" AS "errmessage_serialized~1" FROM edgedbstd."f49572ba-bda6-11ec-ac29-ef9c0a94eee0_t" AS "Constraint~2" CROSS JOIN LATERAL  (SELECT "expr-14~2"."expr~14_value~1" AS "expr~14_value~2" FROM LATERAL  (SELECT (NOT "Constraint~2"."f4983e32-bda6-11ec-90e0-1fc6a34d0c48") AS "expr~14_value~1" ) AS "expr-14~2" ) AS "expr-15~2" WHERE "expr-15~2"."expr~14_value~2" ) AS "expr-16~2" )), "t~14" AS NOT MATERIALIZED  ( (SELECT "expr-20~2"."Annotation_value~1" AS "expr~20_identity~1", "expr-20~2"."name_value~18" AS "name_value~19" FROM LATERAL  (SELECT "Annotation~2".id AS "Annotation_value~1", "Annotation~2"."f3b0e44c-bda6-11ec-bffd-27dec7ca0819" AS "name_value~18" FROM edgedbstd."f3af283c-bda6-11ec-9b14-998c69285076_t" AS "Annotation~2" CROSS JOIN LATERAL  (SELECT "expr-18~2"."expr~18_value~1" AS "expr~18_value~2" FROM LATERAL  (SELECT (NOT "Annotation~2"."f3b11872-bda6-11ec-8d49-650265303d0c") AS "expr~18_value~1" ) AS "expr-18~2" ) AS "expr-19~2" WHERE "expr-19~2"."expr~18_value~2" ) AS "expr-20~2" )), "t~16" AS NOT MATERIALIZED  ( (SELECT "expr-25~2"."ConsistencySubject_value~1" AS "expr~25_identity~1", "expr-25~2"."name_value~21" AS "name_value~22" FROM LATERAL  (SELECT "ConsistencySubject~2".id AS "ConsistencySubject_value~1", "ConsistencySubject~2"."f4dd5bfc-bda6-11ec-96d8-073148e8c55a" AS "name_value~21" FROM edgedbstd."f4db97e0-bda6-11ec-8030-6b127f9e3775_t" AS "ConsistencySubject~2" CROSS JOIN LATERAL  (SELECT "expr-23~2"."expr~23_value~1" AS "expr~23_value~2" FROM LATERAL  (SELECT (NOT "ConsistencySubject~2"."f4dd8e2e-bda6-11ec-a337-2ded16291c6c") AS "expr~23_value~1" ) AS "expr-23~2" ) AS "expr-24~2" WHERE "expr-24~2"."expr~23_value~2" ) AS "expr-25~2" )), "t~18" AS NOT MATERIALIZED  ( (SELECT "expr-30~2"."Parameter_value~1" AS "expr~30_identity~1", "expr-30~2"."name_value~24" AS "name_value~25", "expr-30~2"."type_identity~1" AS "type_identity~2" FROM LATERAL  (SELECT "Parameter~2".id AS "Parameter_value~1", "Parameter~2"."f40a0fc2-bda6-11ec-b6a0-f1d5258f5bbe" AS "name_value~24", "Parameter~2"."f40bdb7c-bda6-11ec-962f-dbd5d60bcf66" AS "type_identity~1" FROM edgedbstd."f4084fc0-bda6-11ec-bc15-7f963fbda5ef_t" AS "Parameter~2" CROSS JOIN LATERAL  (SELECT "expr-28~2"."expr~28_value~1" AS "expr~28_value~2" FROM LATERAL  (SELECT (NOT "Parameter~2"."f40a4474-bda6-11ec-b1cf-43822180c69a") AS "expr~28_value~1" ) AS "expr-28~2" ) AS "expr-29~2" WHERE "expr-29~2"."expr~28_value~2" ) AS "expr-30~2" )) SELECT COALESCE(json_agg("InheritingObject_serialized~1"), '[]') FROM (SELECT to_json(json_build_object('id', "q~1"."expr~4_value~2", 'name', "q~1"."name_value~3", 'is_abstract',  (SELECT to_json("bool_is_abstract~2"."expr~49_serialized~1") AS "is_abstract_serialized~1" FROM LATERAL  (SELECT "expr-49~2"."abstract_value~12" AS "expr~49_value~1", "expr-49~2"."abstract_serialized~5" AS "expr~49_serialized~1" FROM LATERAL  (SELECT "bool_abstract~4"."abstract_value~11" AS "abstract_value~12", "bool_abstract~4"."abstract_serialized~4" AS "abstract_serialized~5" FROM LATERAL  (SELECT "q~7"."abstract_value~10" AS "abstract_value~11", "q~7"."abstract_serialized~3" AS "abstract_serialized~4" FROM LATERAL  (SELECT ("m~1" = first_value("m~1") OVER ()) AS "m~1", "q~6"."abstract_value~8" AS "abstract_value~10", "q~6"."abstract_serialized~1" AS "abstract_serialized~3" FROM LATERAL  ( (SELECT 1 AS "m~1", "q~5"."expr~47_value~2" AS "abstract_value~8", "q~5"."expr~47_value~2" AS "abstract_serialized~1" FROM LATERAL  (SELECT "expr-47~2"."expr~47_value~1" AS "expr~47_value~2" FROM LATERAL  (SELECT "q~3"."abstract_value~6" AS "abstract_value~7" FROM LATERAL  (SELECT ("m~2" = first_value("m~2") OVER ()) AS "m~2", "q~2"."abstract_value~4" AS "abstract_value~6" FROM LATERAL  ( (SELECT 1 AS "m~2", "q~1"."abstract_value~3" AS "abstract_value~4" WHERE ("q~1"."abstract_value~3" IS NOT NULL) ) UNION ALL  (SELECT 2 AS "m~2", "v~2"."f3e40e30-bda6-11ec-b69c-4574eb1d3317~1" AS "abstract_value~5" FROM (SELECT (NULL)::bool AS "f3e40e30-bda6-11ec-b69c-4574eb1d3317~1") AS "v~2" ) ) AS "q~2" ) AS "q~3" WHERE "q~3"."m~2" ) AS "bool_abstract~3" CROSS JOIN LATERAL  (SELECT COALESCE("bool_abstract~3"."abstract_value~7", "expr-46~2"."expr~45_value~2") AS "expr~47_value~1" FROM LATERAL  (SELECT "expr-45~2"."expr~45_value~1" AS "expr~45_value~2" FROM LATERAL  (SELECT edgedbstd."std|cast@std|json@std|bool_f"("expr-44~2"."expr~44_value~2") AS "expr~45_value~1" FROM LATERAL  (SELECT "q~4"."expr~44_value~1" AS "expr~44_value~2" FROM LATERAL  (SELECT edgedbstd."f23327a6-bda6-11ec-bb3c-210187bb839c"(('false')::text) AS "expr~44_value~1" ) AS "q~4" ) AS "expr-44~2" ) AS "expr-45~2" ) AS "expr-46~2" ) AS "expr-47~2" ) AS "q~5" WHERE ("q~5"."expr~47_value~2" IS NOT NULL) ) UNION ALL  (SELECT 2 AS "m~1", "v~1"."f3e40e30-bda6-11ec-b69c-4574eb1d3317~2" AS "abstract_value~9", "v~1"."f3e40e30-bda6-11ec-b69c-4574eb1d3317~2" AS "abstract_serialized~2" FROM (SELECT (NULL)::bool AS "f3e40e30-bda6-11ec-b69c-4574eb1d3317~2") AS "v~1" ) ) AS "q~6" ) AS "q~7" WHERE "q~7"."m~1" ) AS "bool_abstract~4" ) AS "expr-49~2" ) AS "bool_is_abstract~2" ), 'bases',  (SELECT COALESCE(array_agg("aggw~1"."bases_serialized~2"), (ARRAY[])::json[]) AS "v~3" FROM (SELECT to_json("InheritingObject_bases~3"."bases_serialized~1") AS "bases_serialized~2" FROM LATERAL  (SELECT "q~8"."expr~4_identity~1" AS "bases_value~1", json_build_object('id', "q~8"."expr~4_identity~1", 'name', "q~8"."name_value~4") AS "bases_serialized~1" FROM edgedbstd."f3e70a86-bda6-11ec-93bf-b95ed62a59ec_t" AS "bases~1" INNER JOIN LATERAL  (SELECT "t~3"."expr~4_value~1" AS "expr~4_identity~1", "t~3"."name_value~2" AS "name_value~4" FROM "t~1" AS "t~3" ) AS "q~8" ON ("bases~1".target = "q~8"."expr~4_identity~1") WHERE ("q~1"."expr~4_value~2" = "bases~1".source) ) AS "InheritingObject_bases~3" ) AS "aggw~1" ), 'ancestors',  (SELECT COALESCE(array_agg("aggw~2"."ancestors_serialized~2"), (ARRAY[])::json[]) AS "v~4" FROM (SELECT to_json("InheritingObject_ancestors~3"."ancestors_serialized~1") AS "ancestors_serialized~2" FROM LATERAL  (SELECT "q~9"."expr~4_identity~2" AS "ancestors_value~1", json_build_object('id', "q~9"."expr~4_identity~2", 'name', "q~9"."name_value~5") AS "ancestors_serialized~1" FROM edgedbstd."f3e7dd62-bda6-11ec-9505-352d4814691e_t" AS "ancestors~1" INNER JOIN LATERAL  (SELECT "t~4"."expr~4_value~1" AS "expr~4_identity~2", "t~4"."name_value~2" AS "name_value~5" FROM "t~1" AS "t~4" ) AS "q~9" ON ("ancestors~1".target = "q~9"."expr~4_identity~2") WHERE ("q~1"."expr~4_value~2" = "ancestors~1".source) ) AS "InheritingObject_ancestors~3" ) AS "aggw~2" ), 'children',  (SELECT COALESCE(array_agg("aggw~3"."children_serialized~1"), (ARRAY[])::json[]) AS "v~5" FROM (SELECT to_json("J+C32mHmZBQMsyiU69F2uQ:t) & schema:Type)_children~1"."indirection_serialized~1") AS "children_serialized~1" FROM LATERAL  (SELECT "3dvufKQE6OPIGuOn31W3HQ:& schema:Type)_indirection~1"."bases_value~2" AS "indirection_value~1", json_build_object('id', "3dvufKQE6OPIGuOn31W3HQ:& schema:Type)_indirection~1"."bases_value~2", 'name', "3dvufKQE6OPIGuOn31W3HQ:& schema:Type)_indirection~1"."name_value~10") AS "indirection_serialized~1" FROM LATERAL  (SELECT "q~12"."bases_identity~1" AS "bases_value~2", "q~12"."name_value~9" AS "name_value~10" FROM edgedbstd."f3e70a86-bda6-11ec-93bf-b95ed62a59ec_t" AS "bases~2" INNER JOIN LATERAL  (SELECT "q~11"."expr~4_identity~3" AS "bases_identity~1", "q~10"."name_value~8" AS "name_value~9" FROM LATERAL  (SELECT "t~6"."expr~34_identity~1" AS "expr~34_identity~2", "t~6"."name_value~7" AS "name_value~8" FROM "t~5" AS "t~6" ) AS "q~10" INNER JOIN  (SELECT "t~7"."expr~4_value~1" AS "expr~4_identity~3" FROM "t~1" AS "t~7" ) AS "q~11" ON ("q~10"."expr~34_identity~2" = "q~11"."expr~4_identity~3") ) AS "q~12" ON ("bases~2".source = "q~12"."bases_identity~1") WHERE ("q~1"."expr~4_value~2" = "bases~2".target) ) AS "3dvufKQE6OPIGuOn31W3HQ:& schema:Type)_indirection~1" ) AS "J+C32mHmZBQMsyiU69F2uQ:t) & schema:Type)_children~1" ) AS "aggw~3" ), 'descendants',  (SELECT COALESCE(array_agg("aggw~4"."descendants_serialized~1"), (ARRAY[])::json[]) AS "v~6" FROM (SELECT to_json("aCPq+F2wD6CXODNZ384Vmw:& schema:Type)_descendants~1"."indirection_serialized~2") AS "descendants_serialized~1" FROM LATERAL  (SELECT "N07HXWjb75ZYuajOdy+G3A:& schema:Type)_indirection~1"."ancestors_value~2" AS "indirection_value~2", json_build_object('id', "N07HXWjb75ZYuajOdy+G3A:& schema:Type)_indirection~1"."ancestors_value~2", 'name', "N07HXWjb75ZYuajOdy+G3A:& schema:Type)_indirection~1"."name_value~13") AS "indirection_serialized~2" FROM LATERAL  (SELECT "q~15"."ancestors_identity~1" AS "ancestors_value~2", "q~15"."name_value~12" AS "name_value~13" FROM edgedbstd."f3e7dd62-bda6-11ec-9505-352d4814691e_t" AS "ancestors~2" INNER JOIN LATERAL  (SELECT "q~14"."expr~4_identity~4" AS "ancestors_identity~1", "q~13"."name_value~11" AS "name_value~12" FROM LATERAL  (SELECT "t~8"."expr~34_identity~1" AS "expr~34_identity~3", "t~8"."name_value~7" AS "name_value~11" FROM "t~5" AS "t~8" ) AS "q~13" INNER JOIN  (SELECT "t~9"."expr~4_value~1" AS "expr~4_identity~4" FROM "t~1" AS "t~9" ) AS "q~14" ON ("q~13"."expr~34_identity~3" = "q~14"."expr~4_identity~4") ) AS "q~15" ON ("ancestors~2".source = "q~15"."ancestors_identity~1") WHERE ("q~1"."expr~4_value~2" = "ancestors~2".target) ) AS "N07HXWjb75ZYuajOdy+G3A:& schema:Type)_indirection~1" ) AS "aCPq+F2wD6CXODNZ384Vmw:& schema:Type)_descendants~1" ) AS "aggw~4" ), 'constraints',  (SELECT COALESCE(array_agg("aggw~7"."constraints_serialized~2"), (ARRAY[])::json[]) AS "v~9" FROM (SELECT to_json("Constraint_constraints~4"."constraints_serialized~1") AS "constraints_serialized~2" FROM LATERAL  (SELECT "Constraint_constraints~3"."constraints_value~1" AS "constraints_value~2", json_build_object('name', "Constraint_constraints~3"."name_value~17", 'expr',  (SELECT to_json("Constraint_constraints~3"."expr_serialized~4") AS "expr_serialized~5" ), 'annotations',  (SELECT COALESCE(array_agg("aggw~5"."annotations_serialized~2"), (ARRAY[])::json[]) AS "v~7" FROM (SELECT to_json("Annotation_annotations~3"."annotations_serialized~1") AS "annotations_serialized~2" FROM LATERAL  (SELECT "q~18"."expr~20_identity~2" AS "annotations_value~1", json_build_object('name', "q~18"."name_value~20", '@value',  (SELECT to_json("annotations~1"."f49bcc1e-bda6-11ec-a8ed-43fc92edca27") AS "value_serialized~1" )) AS "annotations_serialized~1" FROM edgedbstd."f49a2f58-bda6-11ec-97ba-b18dd943a597_t" AS "annotations~1" INNER JOIN LATERAL  (SELECT "t~15"."expr~20_identity~1" AS "expr~20_identity~2", "t~15"."name_value~19" AS "name_value~20" FROM "t~14" AS "t~15" ) AS "q~18" ON ("annotations~1".target = "q~18"."expr~20_identity~2") WHERE ("Constraint_constraints~3"."constraints_value~1" = "annotations~1".source) ) AS "Annotation_annotations~3" ) AS "aggw~5" ), 'subject',  (SELECT to_json("ConsistencySubject_subject~3"."subject_serialized~1") AS "subject_serialized~2" FROM LATERAL  (SELECT "q~20"."expr~25_identity~2" AS "subject_value~1", json_build_object('name', "q~20"."name_value~23", 'id', "Constraint_constraints~3"."subject_identity~4") AS "subject_serialized~1" FROM LATERAL  (SELECT "Constraint_constraints~3"."subject_identity~4" AS "subject_identity~5" ) AS "q~19" INNER JOIN LATERAL  (SELECT "t~17"."expr~25_identity~1" AS "expr~25_identity~2", "t~17"."name_value~22" AS "name_value~23" FROM "t~16" AS "t~17" ) AS "q~20" ON ("q~19"."subject_identity~5" = "q~20"."expr~25_identity~2") ) AS "ConsistencySubject_subject~3" ), 'params',  (SELECT COALESCE(array_agg("aggw~6"."params_serialized~2"), (ARRAY[])::json[]) AS "v~8" FROM (SELECT to_json("Parameter_params~3"."params_serialized~1") AS "params_serialized~2" FROM LATERAL  (SELECT "q~21"."expr~30_identity~2" AS "params_value~1", json_build_object('name', "q~21"."name_value~26", 'type',  (SELECT to_json("Type_type~3"."type_serialized~1") AS "type_serialized~2" FROM LATERAL  (SELECT "q~23"."expr~34_identity~4" AS "type_value~1", json_build_object('name', "q~23"."name_value~27") AS "type_serialized~1" FROM LATERAL  (SELECT "q~21"."type_identity~3" AS "type_identity~4" ) AS "q~22" INNER JOIN LATERAL  (SELECT "t~20"."expr~34_identity~1" AS "expr~34_identity~4", "t~20"."name_value~7" AS "name_value~27" FROM "t~5" AS "t~20" ) AS "q~23" ON ("q~22"."type_identity~4" = "q~23"."expr~34_identity~4") ) AS "Type_type~3" ), '@value',  (SELECT to_json("params~1"."f4a285d6-bda6-11ec-a8de-b7c1c1abcd22") AS "value_serialized~2" )) AS "params_serialized~1" FROM edgedbstd."f49c0800-bda6-11ec-92eb-512807bbd815_t" AS "params~1" INNER JOIN LATERAL  (SELECT "t~19"."expr~30_identity~1" AS "expr~30_identity~2", "t~19"."name_value~25" AS "name_value~26", "t~19"."type_identity~2" AS "type_identity~3" FROM "t~18" AS "t~19" ) AS "q~21" ON ("params~1".target = "q~21"."expr~30_identity~2") WHERE ("Constraint_constraints~3"."constraints_value~1" = "params~1".source) ) AS "Parameter_params~3" ) AS "aggw~6" ), 'return_typemod',  (SELECT to_json("Constraint_constraints~3"."return_typemod_serialized~4") AS "return_typemod_serialized~5" ), 'return_type',  (SELECT to_json("Type_return_type~3"."return_type_serialized~1") AS "return_type_serialized~2" FROM LATERAL  (SELECT "q~25"."expr~34_identity~5" AS "return_type_value~1", json_build_object('name', "q~25"."name_value~28") AS "return_type_serialized~1" FROM LATERAL  (SELECT "Constraint_constraints~3"."return_type_identity~4" AS "return_type_identity~5" ) AS "q~24" INNER JOIN LATERAL  (SELECT "t~21"."expr~34_identity~1" AS "expr~34_identity~5", "t~21"."name_value~7" AS "name_value~28" FROM "t~5" AS "t~21" ) AS "q~25" ON ("q~24"."return_type_identity~5" = "q~25"."expr~34_identity~5") ) AS "Type_return_type~3" ), 'errmessage',  (SELECT to_json("Constraint_constraints~3"."errmessage_serialized~4") AS "errmessage_serialized~5" )) AS "constraints_serialized~1" FROM LATERAL  (SELECT "q~17"."expr~16_identity~2" AS "constraints_value~1", "q~17"."name_value~16" AS "name_value~17", "q~17"."expr_serialized~3" AS "expr_serialized~4", "q~17"."subject_identity~3" AS "subject_identity~4", "q~17"."return_typemod_serialized~3" AS "return_typemod_serialized~4", "q~17"."return_type_identity~3" AS "return_type_identity~4", "q~17"."errmessage_serialized~3" AS "errmessage_serialized~4" FROM LATERAL  (SELECT "t~13"."expr~16_identity~1" AS "expr~16_identity~2", "t~13"."name_value~15" AS "name_value~16", "t~13"."expr_serialized~2" AS "expr_serialized~3", "t~13"."subject_identity~2" AS "subject_identity~3", "t~13"."return_typemod_serialized~2" AS "return_typemod_serialized~3", "t~13"."return_type_identity~2" AS "return_type_identity~3", "t~13"."errmessage_serialized~2" AS "errmessage_serialized~3" FROM "t~12" AS "t~13" ) AS "q~17" WHERE ("q~17"."expr~16_identity~2" IN  (SELECT "constraints~1".target AS "constraints_identity~1" FROM LATERAL  (SELECT "q~16"."expr~12_identity~2" AS "indirection_identity~1" FROM LATERAL  (SELECT "t~11"."expr~12_identity~1" AS "expr~12_identity~2" FROM "t~10" AS "t~11" ) AS "q~16" WHERE ("q~1"."expr~4_value~2" = "q~16"."expr~12_identity~2") ) AS "ScalarType_indirection~2" INNER JOIN edgedbstd."f5c63dd6-bda6-11ec-8068-510c8c7ce91c_t" AS "constraints~1" ON ("ScalarType_indirection~2"."indirection_identity~1" = "constraints~1".source) )) ) AS "Constraint_constraints~3" ) AS "Constraint_constraints~4" ) AS "aggw~7" ), 'annotations',  (SELECT COALESCE(array_agg("aggw~8"."annotations_serialized~4"), (ARRAY[])::json[]) AS "v~10" FROM (SELECT to_json("Annotation_annotations~7"."annotations_serialized~3") AS "annotations_serialized~4" FROM LATERAL  (SELECT "Annotation_annotations~6"."annotations_value~2" AS "annotations_value~3", json_build_object('name', "Annotation_annotations~6"."name_value~30", '@value',  (SELECT to_json("annotations~3"."f5cb54c4-bda6-11ec-a51d-ad403d1c1791") AS "value_serialized~3" FROM edgedbstd."f5c9abce-bda6-11ec-b32b-81f9f3f59a0f_t" AS "annotations~3" WHERE ("Annotation_annotations~6"."annotations_value~2" = "annotations~3".target) )) AS "annotations_serialized~3" FROM LATERAL  (SELECT "q~27"."expr~20_identity~3" AS "annotations_value~2", "q~27"."name_value~29" AS "name_value~30" FROM LATERAL  (SELECT "t~23"."expr~20_identity~1" AS "expr~20_identity~3", "t~23"."name_value~19" AS "name_value~29" FROM "t~14" AS "t~23" ) AS "q~27" WHERE ("q~27"."expr~20_identity~3" IN  (SELECT "annotations~2".target AS "annotations_identity~1" FROM LATERAL  (SELECT "q~26"."expr~12_identity~3" AS "indirection_identity~2" FROM LATERAL  (SELECT "t~22"."expr~12_identity~1" AS "expr~12_identity~3" FROM "t~10" AS "t~22" ) AS "q~26" WHERE ("q~1"."expr~4_value~2" = "q~26"."expr~12_identity~3") ) AS "ScalarType_indirection~4" INNER JOIN edgedbstd."f5c9abce-bda6-11ec-b32b-81f9f3f59a0f_t" AS "annotations~2" ON ("ScalarType_indirection~4"."indirection_identity~2" = "annotations~2".source) )) ) AS "Annotation_annotations~6" ) AS "Annotation_annotations~7" ) AS "aggw~8" ), 'enum_values',  (SELECT to_json("array<std|str>_enum_values~4"."enum_values_value~7") AS "enum_values_serialized~1" FROM LATERAL  (SELECT "array<std|str>_enum_values~3"."enum_values_value~6" AS "enum_values_value~7" FROM LATERAL  (SELECT "q~29"."enum_values_value~5" AS "enum_values_value~6" FROM LATERAL  (SELECT "ScalarType_indirection~6"."enum_values_value~4" AS "enum_values_value~5" FROM LATERAL  (SELECT "q~28"."enum_values_value~3" AS "enum_values_value~4" FROM LATERAL  (SELECT "t~24"."expr~12_identity~1" AS "expr~12_identity~4", "t~24"."enum_values_value~2" AS "enum_values_value~3" FROM "t~10" AS "t~24" ) AS "q~28" WHERE ("q~1"."expr~4_value~2" = "q~28"."expr~12_identity~4") ) AS "ScalarType_indirection~6" WHERE ("ScalarType_indirection~6"."enum_values_value~4" IS NOT NULL) ) AS "q~29" ) AS "array<std|str>_enum_values~3" ) AS "array<std|str>_enum_values~4" ))) AS "InheritingObject_serialized~1" FROM (SELECT "t~2"."expr~4_value~1" AS "expr~4_value~2", "t~2"."name_value~2" AS "name_value~3", "t~2"."abstract_value~2" AS "abstract_value~3", "t~2"."__type___identity~2" AS "__type___identity~3" FROM "t~1" AS "t~2" ) AS "q~1" CROSS JOIN LATERAL  (SELECT ("expr-51~2"."expr~51_value~1" OR  "expr-53~2"."expr~53_value~1") AS "expr~55_value~1" FROM LATERAL  (SELECT "q~1"."__type___identity~3" AS "__type___identity~4" ) AS "q~30" INNER JOIN LATERAL  (SELECT "t~25"."expr~34_identity~1" AS "expr~34_identity~6" FROM "t~5" AS "t~25" ) AS "q~31" ON ("q~30"."__type___identity~4" = "q~31"."expr~34_identity~6") CROSS JOIN LATERAL  (SELECT edgedb.issubclass("q~31"."expr~34_identity~6", ('f5bbd986-bda6-11ec-b8dc-f97457aa9573')::uuid) AS "expr~51_value~1" ) AS "expr-51~2" CROSS JOIN LATERAL  (SELECT edgedb.issubclass("q~31"."expr~34_identity~6", ('f612acca-bda6-11ec-8e5f-3563f6b3294c')::uuid) AS "expr~53_value~1" ) AS "expr-53~2" ) AS "expr-55~2" WHERE "expr-55~2"."expr~55_value~1" ) AS "aggw~9"
CRITICAL 53024 2022-04-22T15:30:48.944 postgres: connection to client lost
INFO 53013 2022-04-22T15:30:49.938 edb.server: Backend connections to database edgedb: 3 were discarded, 3 were established in at least the last 1.0 seconds.
ERROR 53024 2022-04-22T15:31:21.663 postgres: more than one row returned by a subquery used as an expression

Here is the full query. The error does occur with the simplified one as well. But I’m including it for reference. The query is a slightly modified version of the first query in getTypes in the typescript query builder.

WITH
      MODULE schema,

      material_scalars := (
        SELECT ScalarType
        FILTER
          (.name LIKE 'std::%' OR .name LIKE 'cal::%')
          AND NOT .is_abstract
      )

    SELECT Type {
      id,
      name,
      is_abstract,

      kind := 'object' IF Type IS ObjectType ELSE
              'scalar' IF Type IS ScalarType ELSE
              'array' IF Type IS Array ELSE
              'tuple' IF Type IS Tuple ELSE
              'unknown',
      [IS ScalarType].constraints: {
        name,
        expr,
        annotations: { name, @value },
        subject: { name, id },
        params: { name, @value, type: { name } },
        return_typemod,
        return_type: { name },
        errmessage,
      },
      [IS ObjectType].properties: {
        name, default, required, is_abstract, abstract, builtin, is_final,
        expr, inherited_fields , final, readonly,
        computed_fields , id,
        annotations:{ name, @value },
        target:{name, id}
      } Filter .internal = false,
      [IS ScalarType].enum_values,
      is_seq := 'std::sequence' in [IS ScalarType].ancestors.name,
      # for sequence (abstract type that has non-abstract ancestor)
      single material_id := (
        SELECT x := Type[IS ScalarType].ancestors
        FILTER x IN material_scalars
        LIMIT 1
      ).id,

      [IS InheritingObject].bases: {
        id
      } ORDER BY @index ASC,
      [IS ObjectType].links: {
        indexes :{ name, id },
        annotations :{ name, id },
        ancestors :{ name, id },
        bases :{ name, id, __type__:{name}
        #, [IS Link].annotations:{name, @value} 
      },
        properties :{
          name, default, required, is_abstract, abstract, builtin, is_final,
          expr, inherited_fields , final, readonly,
          computed_fields , id,
          annotations:{ name, @value },
          target:{name, id}, constraints :{ name, id }
        },
        constraints :{ name, id },
        pointers :{ name, id },
        target :{ name, id },

        is_final,
        abstract,
        computed_fields,
        name,
        final,
        inherited_fields,
        builtin,
        internal,
        expr,
        required,
        id,
        is_abstract,
        readonly,
        cardinality,
        on_target_delete,
        default
    },
      [IS ObjectType].union_of,
      [IS ObjectType].intersection_of,
      [IS ObjectType].pointers: {
        real_cardinality := ("One" IF .required ELSE "AtMostOne") IF <str>.cardinality = "One" ELSE ("AtLeastOne" IF .required ELSE "Many"),
        name,
        target_id := .target.id,
        kind := 'link' IF .__type__.name = 'schema::Link' ELSE 'property',
        is_exclusive := exists (select .constraints filter .name = 'std::exclusive'),
        is_computed := len(.computed_fields) != 0,
        is_readonly := .readonly,
        has_default := EXISTS .default or ("std::sequence" in .target[IS ScalarType].ancestors.name),
        [IS Link].pointers: {
          real_cardinality := ("One" IF .required ELSE "AtMostOne") IF <str>.cardinality = "One" ELSE ("AtLeastOne" IF .required ELSE "Many"),
          name := '@' ++ .name,
          target_id := .target.id,
          kind := 'link' IF .__type__.name = 'schema::Link' ELSE 'property',
          is_computed := len(.computed_fields) != 0,
          is_readonly := .readonly
        } filter .name != '@source' and .name != '@target',
      } FILTER @is_owned,
      backlinks := (SELECT DETACHED Link FILTER .target = Type) {
        real_cardinality := "AtMostOne"
          IF
          EXISTS (select .constraints filter .name = 'std::exclusive')
          ELSE
          "Many",
        name := '<' ++ .name ++ '[is ' ++ std::assert_exists(
          .source.name if .source.name[:9] != 'default::' else .source.name[9:]
        ) ++ ']',
        stub := .name,
        target_id := .source.id,
        target_name := .source.name,
        indexes :{ name, id },
        annotations :{ name, @value },
        ancestors :{ name, id },
        bases :{ 
          name, id, __type__:{name}
          #,[IS Link].annotations:{name, @value}
      },
        properties :{
          name, default, required, is_abstract, abstract, builtin, is_final,
          expr, inherited_fields , final, readonly,
          computed_fields , id,
          annotations:{ name, @value },
          target:{name, id}
        },
        constraints :{ name, id },
        pointers :{ name, id },
        target :{ name, id },
        is_computed := len(.computed_fields) != 0,
        is_final,
        abstract,
        computed_fields,
        final,
        inherited_fields,
        builtin,
        internal,
        expr,
        required,
        id,
        is_abstract,
        readonly,
        cardinality,
        on_target_delete,
        default,
        kind := 'link',
        is_exclusive := (EXISTS (select .constraints filter .name = 'std::exclusive')) AND <str>.cardinality = "One",
      },
      backlink_stubs := array_agg((
        WITH
          stubs := DISTINCT (SELECT DETACHED Link FILTER .target = Type).name,
          baseObjectId := (SELECT DETACHED ObjectType FILTER .name = 'std::BaseObject' LIMIT 1).id
        FOR stub in { stubs }
        UNION (
          SELECT {
            real_cardinality := "Many",
            name := '<' ++ stub,
            target_id := baseObjectId,
            kind := 'link',
            is_exclusive := false,
          }
        )
      )),
      array_element_id := [IS Array].element_type.id,

      tuple_elements := (SELECT [IS Tuple].element_types {
        target_id := .type.id,
        name
      } ORDER BY @index ASC),
    }
    ORDER BY .name;
  `

[msullivan]

Alright, the bug that showed up with the example is fixed. Nobody was able to reproduce a hang, unfortunately.

I’m not really sure what to do with this, then.

My suspicion is that it might have been some kind of protocol desync between the edgedb server and the pgsql server, though I’m not really sure what. A lot of that machinery got reworked in 2.0

[haikyuu]

Didn’t reproduce after either. Let’s close this and hopefully it won’t resurface again