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Diffstat (limited to 'src/test/regress/sql/xid.sql')
| -rw-r--r-- | src/test/regress/sql/xid.sql | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/test/regress/sql/xid.sql b/src/test/regress/sql/xid.sql new file mode 100644 index 0000000..bee17e6 --- /dev/null +++ b/src/test/regress/sql/xid.sql @@ -0,0 +1,156 @@ +-- xid and xid8 + +-- values in range, in octal, decimal, hex +select '010'::xid, + '42'::xid, + '0xffffffff'::xid, + '-1'::xid, + '010'::xid8, + '42'::xid8, + '0xffffffffffffffff'::xid8, + '-1'::xid8; + +-- garbage values are not yet rejected (perhaps they should be) +select ''::xid; +select 'asdf'::xid; +select ''::xid8; +select 'asdf'::xid8; + +-- equality +select '1'::xid = '1'::xid; +select '1'::xid != '1'::xid; +select '1'::xid8 = '1'::xid8; +select '1'::xid8 != '1'::xid8; + +-- conversion +select '1'::xid = '1'::xid8::xid; +select '1'::xid != '1'::xid8::xid; + +-- we don't want relational operators for xid, due to use of modular arithmetic +select '1'::xid < '2'::xid; +select '1'::xid <= '2'::xid; +select '1'::xid > '2'::xid; +select '1'::xid >= '2'::xid; + +-- we want them for xid8 though +select '1'::xid8 < '2'::xid8, '2'::xid8 < '2'::xid8, '2'::xid8 < '1'::xid8; +select '1'::xid8 <= '2'::xid8, '2'::xid8 <= '2'::xid8, '2'::xid8 <= '1'::xid8; +select '1'::xid8 > '2'::xid8, '2'::xid8 > '2'::xid8, '2'::xid8 > '1'::xid8; +select '1'::xid8 >= '2'::xid8, '2'::xid8 >= '2'::xid8, '2'::xid8 >= '1'::xid8; + +-- we also have a 3way compare for btrees +select xid8cmp('1', '2'), xid8cmp('2', '2'), xid8cmp('2', '1'); + +-- min() and max() for xid8 +create table xid8_t1 (x xid8); +insert into xid8_t1 values ('0'), ('010'), ('42'), ('0xffffffffffffffff'), ('-1'); +select min(x), max(x) from xid8_t1; + +-- xid8 has btree and hash opclasses +create index on xid8_t1 using btree(x); +create index on xid8_t1 using hash(x); +drop table xid8_t1; + + +-- pg_snapshot data type and related functions + +-- Note: another set of tests similar to this exists in txid.sql, for a limited +-- time (the relevant functions share C code) + +-- i/o +select '12:13:'::pg_snapshot; +select '12:18:14,16'::pg_snapshot; +select '12:16:14,14'::pg_snapshot; + +-- errors +select '31:12:'::pg_snapshot; +select '0:1:'::pg_snapshot; +select '12:13:0'::pg_snapshot; +select '12:16:14,13'::pg_snapshot; + +create temp table snapshot_test ( + nr integer, + snap pg_snapshot +); + +insert into snapshot_test values (1, '12:13:'); +insert into snapshot_test values (2, '12:20:13,15,18'); +insert into snapshot_test values (3, '100001:100009:100005,100007,100008'); +insert into snapshot_test values (4, '100:150:101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131'); +select snap from snapshot_test order by nr; + +select pg_snapshot_xmin(snap), + pg_snapshot_xmax(snap), + pg_snapshot_xip(snap) +from snapshot_test order by nr; + +select id, pg_visible_in_snapshot(id::text::xid8, snap) +from snapshot_test, generate_series(11, 21) id +where nr = 2; + +-- test bsearch +select id, pg_visible_in_snapshot(id::text::xid8, snap) +from snapshot_test, generate_series(90, 160) id +where nr = 4; + +-- test current values also +select pg_current_xact_id() >= pg_snapshot_xmin(pg_current_snapshot()); + +-- we can't assume current is always less than xmax, however + +select pg_visible_in_snapshot(pg_current_xact_id(), pg_current_snapshot()); + +-- test 64bitness + +select pg_snapshot '1000100010001000:1000100010001100:1000100010001012,1000100010001013'; +select pg_visible_in_snapshot('1000100010001012', '1000100010001000:1000100010001100:1000100010001012,1000100010001013'); +select pg_visible_in_snapshot('1000100010001015', '1000100010001000:1000100010001100:1000100010001012,1000100010001013'); + +-- test 64bit overflow +SELECT pg_snapshot '1:9223372036854775807:3'; +SELECT pg_snapshot '1:9223372036854775808:3'; + +-- test pg_current_xact_id_if_assigned +BEGIN; +SELECT pg_current_xact_id_if_assigned() IS NULL; +SELECT pg_current_xact_id() \gset +SELECT pg_current_xact_id_if_assigned() IS NOT DISTINCT FROM xid8 :'pg_current_xact_id'; +COMMIT; + +-- test xid status functions +BEGIN; +SELECT pg_current_xact_id() AS committed \gset +COMMIT; + +BEGIN; +SELECT pg_current_xact_id() AS rolledback \gset +ROLLBACK; + +BEGIN; +SELECT pg_current_xact_id() AS inprogress \gset + +SELECT pg_xact_status(:committed::text::xid8) AS committed; +SELECT pg_xact_status(:rolledback::text::xid8) AS rolledback; +SELECT pg_xact_status(:inprogress::text::xid8) AS inprogress; +SELECT pg_xact_status('1'::xid8); -- BootstrapTransactionId is always committed +SELECT pg_xact_status('2'::xid8); -- FrozenTransactionId is always committed +SELECT pg_xact_status('3'::xid8); -- in regress testing FirstNormalTransactionId will always be behind oldestXmin + +COMMIT; + +BEGIN; +CREATE FUNCTION test_future_xid_status(xid8) +RETURNS void +LANGUAGE plpgsql +AS +$$ +BEGIN + PERFORM pg_xact_status($1); + RAISE EXCEPTION 'didn''t ERROR at xid in the future as expected'; +EXCEPTION + WHEN invalid_parameter_value THEN + RAISE NOTICE 'Got expected error for xid in the future'; +END; +$$; +SELECT test_future_xid_status((:inprogress + 10000)::text::xid8); +ROLLBACK; |