-- Saturate the parameter buffer with extended protocol
SET pg_tracing.max_parameter_size=1;
/*traceparent='00-00000000000000000000000000000001-0000000000000001-01'*/ select $1, $2, $3 \bind 1 2 3 \g
 ?column? | ?column? | ?column? 
----------+----------+----------
 1        | 2        | 3
(1 row)

SELECT span_operation, parameters, lvl from peek_ordered_spans where trace_id='00000000000000000000000000000001';
  span_operation   | parameters  | lvl 
-------------------+-------------+-----
 select $1, $2, $3 | {1,...,...} |   0
 Planner           |             |   1
 ExecutorRun       |             |   1
 Result            |             |   2
(4 rows)

SET pg_tracing.max_parameter_size=2;
/*traceparent='00-00000000000000000000000000000002-0000000000000002-01'*/ select $1, $2, $3 \bind 1 2 3 \g
 ?column? | ?column? | ?column? 
----------+----------+----------
 1        | 2        | 3
(1 row)

SELECT span_operation, parameters, lvl from peek_ordered_spans where trace_id='00000000000000000000000000000002';
  span_operation   | parameters  | lvl 
-------------------+-------------+-----
 select $1, $2, $3 | {1,...,...} |   0
 Planner           |             |   1
 ExecutorRun       |             |   1
 Result            |             |   2
(4 rows)

SET pg_tracing.max_parameter_size=3;
/*traceparent='00-00000000000000000000000000000003-0000000000000003-01'*/ select $1, $2, $3 \bind 1 2 3 \g
 ?column? | ?column? | ?column? 
----------+----------+----------
 1        | 2        | 3
(1 row)

SELECT span_operation, parameters, lvl from peek_ordered_spans where trace_id='00000000000000000000000000000003';
  span_operation   | parameters | lvl 
-------------------+------------+-----
 select $1, $2, $3 | {1,2,...}  |   0
 Planner           |            |   1
 ExecutorRun       |            |   1
 Result            |            |   2
(4 rows)

-- Cleanup
CALL clean_spans();
CALL reset_settings();