-- Test simple append /*dddbs='postgres.db',traceparent='00-00000000000000000000000000000001-0000000000000001-01'*/ SELECT count(*) FROM pg_tracing_test WHERE a + 0 < 10 UNION ALL SELECT count(*) FROM pg_tracing_test WHERE a + 0 < 10000; SELECT span_operation, deparse_info, parameters, lvl from peek_ordered_spans where trace_id='00000000000000000000000000000001'; -- +------------------------------------------+ -- | A: Append | -- +-+-----------------+-+-----------------+--+ -- | B: Aggregate | | C: Aggregate | -- +-----------------+ +-----------------+ -- | D: IndexScan | | E: IndexScan | -- +-----------------+ +-----------------+ SELECT span_id AS span_a_id, get_epoch(span_start) as span_a_start, get_epoch(span_end) as span_a_end from pg_tracing_peek_spans where trace_id='00000000000000000000000000000001' AND span_operation='Append' \gset SELECT span_id AS span_b_id, get_epoch(span_start) as span_b_start, get_epoch(span_end) as span_b_end from pg_tracing_peek_spans where parent_id =:'span_a_id' and span_operation='Aggregate' LIMIT 1 OFFSET 0 \gset SELECT span_id AS span_c_id, get_epoch(span_start) as span_c_start, get_epoch(span_end) as span_c_end from pg_tracing_peek_spans where parent_id =:'span_a_id' and span_operation='Aggregate' LIMIT 1 OFFSET 1 \gset SELECT span_id AS span_d_id, get_epoch(span_start) as span_d_start, get_epoch(span_end) as span_d_end from pg_tracing_peek_spans where parent_id =:'span_b_id' \gset SELECT span_id AS span_e_id, get_epoch(span_start) as span_e_start, get_epoch(span_end) as span_e_end from pg_tracing_peek_spans where parent_id =:'span_c_id' \gset SELECT :span_a_end >= GREATEST(:span_c_end, :span_e_end) as root_ends_last, :span_c_start >= :span_b_start as second_index_start_after_first; -- Cleanup CALL clean_spans(); CALL reset_settings();