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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:17:33 +0000 |
commit | 5e45211a64149b3c659b90ff2de6fa982a5a93ed (patch) | |
tree | 739caf8c461053357daa9f162bef34516c7bf452 /src/test/regress/expected/write_parallel.out | |
parent | Initial commit. (diff) | |
download | postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.tar.xz postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.zip |
Adding upstream version 15.5.upstream/15.5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/regress/expected/write_parallel.out')
-rw-r--r-- | src/test/regress/expected/write_parallel.out | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/test/regress/expected/write_parallel.out b/src/test/regress/expected/write_parallel.out new file mode 100644 index 0000000..dc0c4ba --- /dev/null +++ b/src/test/regress/expected/write_parallel.out @@ -0,0 +1,80 @@ +-- +-- PARALLEL +-- +begin; +-- encourage use of parallel plans +set parallel_setup_cost=0; +set parallel_tuple_cost=0; +set min_parallel_table_scan_size=0; +set max_parallel_workers_per_gather=4; +-- +-- Test write operations that has an underlying query that is eligible +-- for parallel plans +-- +explain (costs off) create table parallel_write as + select length(stringu1) from tenk1 group by length(stringu1); + QUERY PLAN +--------------------------------------------------- + Finalize HashAggregate + Group Key: (length((stringu1)::text)) + -> Gather + Workers Planned: 4 + -> Partial HashAggregate + Group Key: length((stringu1)::text) + -> Parallel Seq Scan on tenk1 +(7 rows) + +create table parallel_write as + select length(stringu1) from tenk1 group by length(stringu1); +drop table parallel_write; +explain (costs off) select length(stringu1) into parallel_write + from tenk1 group by length(stringu1); + QUERY PLAN +--------------------------------------------------- + Finalize HashAggregate + Group Key: (length((stringu1)::text)) + -> Gather + Workers Planned: 4 + -> Partial HashAggregate + Group Key: length((stringu1)::text) + -> Parallel Seq Scan on tenk1 +(7 rows) + +select length(stringu1) into parallel_write + from tenk1 group by length(stringu1); +drop table parallel_write; +explain (costs off) create materialized view parallel_mat_view as + select length(stringu1) from tenk1 group by length(stringu1); + QUERY PLAN +--------------------------------------------------- + Finalize HashAggregate + Group Key: (length((stringu1)::text)) + -> Gather + Workers Planned: 4 + -> Partial HashAggregate + Group Key: length((stringu1)::text) + -> Parallel Seq Scan on tenk1 +(7 rows) + +create materialized view parallel_mat_view as + select length(stringu1) from tenk1 group by length(stringu1); +create unique index on parallel_mat_view(length); +refresh materialized view parallel_mat_view; +refresh materialized view concurrently parallel_mat_view; +drop materialized view parallel_mat_view; +prepare prep_stmt as select length(stringu1) from tenk1 group by length(stringu1); +explain (costs off) create table parallel_write as execute prep_stmt; + QUERY PLAN +--------------------------------------------------- + Finalize HashAggregate + Group Key: (length((stringu1)::text)) + -> Gather + Workers Planned: 4 + -> Partial HashAggregate + Group Key: length((stringu1)::text) + -> Parallel Seq Scan on tenk1 +(7 rows) + +create table parallel_write as execute prep_stmt; +drop table parallel_write; +rollback; |