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Overview
Comment: | Fix a problem with using window functions in compound (UNION, INTERSECT etc.) queries. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
059ff53a46c7f1e4bf3e7dc558312bee |
User & Date: | dan 2018-10-23 13:48:19.879 |
Context
2018-10-24
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23:55 | Add the ENABLE_GEOPOLY case to the compile_options pragma. (check-in: de940296d2 user: drh tags: trunk) | |
2018-10-23
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13:48 | Fix a problem with using window functions in compound (UNION, INTERSECT etc.) queries. (check-in: 059ff53a46 user: dan tags: trunk) | |
2018-10-20
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13:48 | Add the sqlite3changeset_start_v2() - a new version of _start() that accepts a flags parameter - and a streaming equivalent to the sessions module. Also add the SQLITE_CHANGESETSTART_INVERT flag, used with start_v2() to invert a changeset while iterating through it. (check-in: cbedcb9aae user: dan tags: trunk) | |
Changes
Changes to src/window.c.
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742 743 744 745 746 747 748 | 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 | - + | ** any SQL window functions, this function is a no-op. Otherwise, it ** rewrites the SELECT statement so that window function xStep functions ** are invoked in the correct order as described under "SELECT REWRITING" ** at the top of this file. */ int sqlite3WindowRewrite(Parse *pParse, Select *p){ int rc = SQLITE_OK; |
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Changes to test/window1.test.
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544 545 546 547 548 549 550 551 552 | 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 | + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + | do_execsql_test 12.110 { INSERT INTO t1 VALUES(6, 'F', 'three'); INSERT INTO t1 VALUES(7, 'G', 'one'); SELECT id, b, lead(c,1) OVER(ORDER BY c) AS x FROM t1 WHERE id>1 ORDER BY b LIMIT 2; } {2 B two 3 C three} #------------------------------------------------------------------------- do_execsql_test 13.1 { DROP TABLE IF EXISTS t1; CREATE TABLE t1(a int, b int); INSERT INTO t1 VALUES(1,11); INSERT INTO t1 VALUES(2,12); } do_execsql_test 13.2.1 { SELECT a, rank() OVER(ORDER BY b) FROM t1; SELECT a, rank() OVER(ORDER BY b DESC) FROM t1; } { 1 1 2 2 2 1 1 2 } do_execsql_test 13.2.2 { SELECT a, rank() OVER(ORDER BY b) FROM t1 UNION ALL SELECT a, rank() OVER(ORDER BY b DESC) FROM t1; } { 1 1 2 2 2 1 1 2 } do_execsql_test 13.3 { SELECT a, rank() OVER(ORDER BY b) FROM t1 UNION SELECT a, rank() OVER(ORDER BY b DESC) FROM t1; } { 1 1 1 2 2 1 2 2 } do_execsql_test 13.4 { SELECT a, rank() OVER(ORDER BY b) FROM t1 EXCEPT SELECT a, rank() OVER(ORDER BY b DESC) FROM t1; } { 1 1 2 2 } do_execsql_test 13.5 { SELECT a, rank() OVER(ORDER BY b) FROM t1 INTERSECT SELECT a, rank() OVER(ORDER BY b DESC) FROM t1; } { } finish_test |