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Add isolation tests for DROP INDEX CONCURRENTLY.

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Backpatch to 9.2 to ensure bugs are fixed.

Abhijit Menon-Sen
This commit is contained in:
Simon Riggs 2012-10-18 13:37:09 +01:00
parent ff3f9c8de5
commit 4e206744dc
5 changed files with 116 additions and 0 deletions
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36
src/test/isolation/expected/drop-index-concurrently-1.out Normal file
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Parsed test spec with 3 sessions
starting permutation: noseq prepi preps begin explaini explains select2 drop insert2 end2 selecti selects end
step noseq: SET enable_seqscan = false;
step prepi: PREPARE getrow_idx AS SELECT * FROM test_dc WHERE data=34;
step preps: PREPARE getrow_seq AS SELECT * FROM test_dc WHERE data::text=34::text;
step begin: BEGIN;
step explaini: EXPLAIN (COSTS OFF) EXECUTE getrow_idx;
QUERY PLAN
Index Scan using test_dc_data on test_dc
Index Cond: (data = 34)
step explains: EXPLAIN (COSTS OFF) EXECUTE getrow_seq;
QUERY PLAN
Seq Scan on test_dc
Filter: ((data)::text = '34'::text)
step select2: SELECT * FROM test_dc WHERE data=34;
id data
34 34
step drop: DROP INDEX CONCURRENTLY test_dc_data; <waiting ...>
step insert2: INSERT INTO test_dc(data) SELECT * FROM generate_series(1, 100);
step end2: COMMIT;
step selecti: EXECUTE getrow_idx;
id data
34 34
134 34
step selects: EXECUTE getrow_seq;
id data
34 34
134 34
step end: COMMIT;
step drop: <... completed>

24
src/test/isolation/expected/drop-index-concurrently-2.out Normal file
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Parsed test spec with 3 sessions
starting permutation: explain drop cancel rollback droptab selecti dropi
step explain: EXPLAIN (COSTS OFF) SELECT * FROM test_dc WHERE data=34343;
QUERY PLAN
Bitmap Heap Scan on test_dc
Recheck Cond: (data = 34343)
-> Bitmap Index Scan on test_dc_data
Index Cond: (data = 34343)
step drop: DROP INDEX CONCURRENTLY test_dc_data; <waiting ...>
step cancel: SELECT pg_cancel_backend(pid) FROM pg_stat_activity WHERE query = 'DROP INDEX CONCURRENTLY test_dc_data;';
pg_cancel_backend
t
step drop: <... completed>
error in steps cancel drop: ERROR: canceling statement due to user request
step rollback: ROLLBACK;
step droptab: DROP TABLE test_dc;
step selecti: SELECT indexrelid::regclass, indisvalid, indisready FROM pg_index WHERE indexrelid = 'test_dc_data'::regclass;
indexrelid indisvalid indisready
test_dc_data f f
step dropi: DROP INDEX test_dc_data;

2
src/test/isolation/isolation_schedule
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@ -14,3 +14,5 @@ test: fk-contention
test: fk-deadlock
test: fk-deadlock2
test: eval-plan-qual
test: drop-index-concurrently-1
test: drop-index-concurrently-2

33
src/test/isolation/specs/drop-index-concurrently-1.spec Normal file
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setup
{
CREATE TABLE test_dc(id serial primary key, data int);
INSERT INTO test_dc(data) SELECT * FROM generate_series(1, 100);
CREATE INDEX test_dc_data ON test_dc(data);
}
teardown
{
DROP TABLE test_dc;
}
session "s1"
step "noseq" { SET enable_seqscan = false; }
step "prepi" { PREPARE getrow_idx AS SELECT * FROM test_dc WHERE data=34; }
step "preps" { PREPARE getrow_seq AS SELECT * FROM test_dc WHERE data::text=34::text; }
step "begin" { BEGIN; }
step "explaini" { EXPLAIN (COSTS OFF) EXECUTE getrow_idx; }
step "explains" { EXPLAIN (COSTS OFF) EXECUTE getrow_seq; }
step "selecti" { EXECUTE getrow_idx; }
step "selects" { EXECUTE getrow_seq; }
step "end" { COMMIT; }
session "s2"
setup { BEGIN; }
step "select2" { SELECT * FROM test_dc WHERE data=34; }
step "insert2" { INSERT INTO test_dc(data) SELECT * FROM generate_series(1, 100); }
step "end2" { COMMIT; }
session "s3"
step "drop" { DROP INDEX CONCURRENTLY test_dc_data; }
permutation "noseq" "prepi" "preps" "begin" "explaini" "explains" "select2" "drop" "insert2" "end2" "selecti" "selects" "end"

21
src/test/isolation/specs/drop-index-concurrently-2.spec Normal file
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setup
{
CREATE TABLE test_dc(id serial primary key, data int);
CREATE INDEX test_dc_data ON test_dc(data);
}
session "s1"
setup { BEGIN; }
step "explain" { EXPLAIN (COSTS OFF) SELECT * FROM test_dc WHERE data=34343; }
step "rollback" { ROLLBACK; }
step "droptab" { DROP TABLE test_dc; }
step "selecti" { SELECT indexrelid::regclass, indisvalid, indisready FROM pg_index WHERE indexrelid = 'test_dc_data'::regclass; }
step "dropi" { DROP INDEX test_dc_data; }
session "s2"
step "drop" { DROP INDEX CONCURRENTLY test_dc_data; }
session "s3"
step "cancel" { SELECT pg_cancel_backend(pid) FROM pg_stat_activity WHERE query = 'DROP INDEX CONCURRENTLY test_dc_data;'; }
permutation "explain" "drop" "cancel" "rollback" "droptab" "selecti" "dropi"