I33Buckler opened a new issue, #1260:
URL: https://github.com/apache/age/issues/1260
Have encountered an intriguing issue with loading a table with a large
number of rows into Apache AGE. The process is looping through PL/pgSQL.
The looping terminates with the following message.
```
SQL Error [42703]: ERROR: could not find rte for
a01a724103fbb3d059b8387bf043dbc8 Where: PL/pgSQL function
analysis.create_trips(text,text,text,text,text,text,integer,text,integer)
line 5 at EXECUTE
```
The database version is PostgreSQL 15.4 (Debian 15.4-2.pgdg120+1) on
x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit.
The Apache AGE version is 1.4.0 for PG15 built from the repository.
The error results from the following process.
```
SELECT create_graph('transport_network');
CREATE OR REPLACE FUNCTION analysis.create_trips
(graph_name text,
service_key text,service_id text, trip_id text, trip_headsign text, route_id
text, direction_id int, shape_id text, wheelchair_accessible int)
returns text
LANGUAGE plpgsql
VOLATILE
as $trips$
declare
nodename text := graph_name || '.' || 'trips';
BEGIN
execute
format ('select * from cypher(''%1$s'', $$match (v:routes {id: %6$s})
create(v)-[:USES]->
(t:trips
{service_key: %2$s, service_id: %3$s, id: %4$s, headsign: %5$s, route_id:
%6$s, direction_id: %7$s, shape_id: %8$s,
wheelchair_accessible: %9$s})$$) as (t agtype);',
quote_ident(graph_name),
quote_ident(service_key),quote_ident(service_id),
quote_ident(trip_id),quote_ident(trip_headsign),
quote_ident(route_id),to_char(direction_id,'9'),quote_ident(shape_id),to_char(wheelchair_accessible,'9'));
return nodename;
END
$trips$
;
select create_vlabel('transport_network','trips');
do $$
declare temprow record;
graph_name text:='transport_network';
counter integer := 0 ;
begin
for temprow in select service_key, service_id, trip_id from allservices.trips
order by service_key,trip_id
loop
counter := counter+1; -- Prevent replication of row
perform
analysis.create_trips
(graph_name,
a.service_key, a.service_id,
a.trip_id, a.trip_headsign,
a.route_id, a.direction_id, a.shape_id,
a.wheelchair_accessible)
from
(select row_number() over (order by service_key,trip_id) as row_num,
service_key, service_id,
trip_id, trip_headsign,
route_id, direction_id, shape_id,
coalesce(wheelchair_accessible,0) as wheelchair_accessible from
allservices.trips) a
where a.row_num=counter
;
end loop;
end; $$;
```
In this case the string after the rte in the error message refers to the
service_key value in the table allservices.trips.
The first instance of the record in this instance is.
|row_num|service_key
|service_id|trip_id|trip_headsign|route_id|direction_id|shape_id|wheelchair_accessible|
|---------:|:------------------------------------------|:----------|:-------|:--------------|:--------|------------:|:----------|-----------------------:|
|7741 |a01a724103fbb3d059b8387bf043dbc8|FR |307
|Gunghalin Pl|X1 |0 |1002 |1
|
The attributes of the table being processed are:
* Total size with indexes: 60MB
* Number of rows 231,131
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