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Overview
Comment: | Allow the RHS of a row-value IN operator to use a compound query with an ORDER BY clause. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
eaf15d9bae6773058341d6219241f44c |
User & Date: | drh 2019-08-09 20:26:01.927 |
Context
2019-08-10
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14:16 | Remove two incorrect assert() statements from the logic used to derive column names and types from subqueries. (check-in: 712e477148 user: drh tags: trunk) | |
2019-08-09
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20:26 | Allow the RHS of a row-value IN operator to use a compound query with an ORDER BY clause. (check-in: eaf15d9bae user: drh tags: trunk) | |
01:59 | Modify signature of sqlite3VdbeChangeOpcode() to accept int instead of u32. (check-in: 68b7f2acf4 user: mistachkin tags: trunk) | |
Changes
Changes to src/select.c.
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2963 2964 2965 2966 2967 2968 2969 | pIn->iSdst, pIn->nSdst); sqlite3ReleaseTempReg(pParse, r1); break; } /* If this is a scalar select that is part of an expression, then ** store the results in the appropriate memory cell and break out | | > > | | > | 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 | pIn->iSdst, pIn->nSdst); sqlite3ReleaseTempReg(pParse, r1); break; } /* If this is a scalar select that is part of an expression, then ** store the results in the appropriate memory cell and break out ** of the scan loop. Note that the select might return multiple columns ** if it is the RHS of a row-value IN operator. */ case SRT_Mem: { if( pParse->nErr==0 ){ testcase( pIn->nSdst>1 ); sqlite3ExprCodeMove(pParse, pIn->iSdst, pDest->iSDParm, pIn->nSdst); } /* The LIMIT clause will jump out of the loop for us */ break; } #endif /* #ifndef SQLITE_OMIT_SUBQUERY */ /* The results are stored in a sequence of registers ** starting at pDest->iSdst. Then the co-routine yields. |
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Changes to test/rowvalue.test.
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552 553 554 555 556 557 558 559 560 | # do_execsql_test 21.0 { DROP TABLE IF EXISTS t1; CREATE TABLE t1(a,b,PRIMARY KEY(b,b)); INSERT INTO t1 VALUES(1,2),(3,4),(5,6); SELECT * FROM t1 WHERE (a,b) IN (VALUES(1,2)); } {1 2} finish_test | > > > > > > > > > > > > > | 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 | # do_execsql_test 21.0 { DROP TABLE IF EXISTS t1; CREATE TABLE t1(a,b,PRIMARY KEY(b,b)); INSERT INTO t1 VALUES(1,2),(3,4),(5,6); SELECT * FROM t1 WHERE (a,b) IN (VALUES(1,2)); } {1 2} # 2019-08-09: Multi-column subquery on the RHS of an IN operator. # do_execsql_test 22.100 { SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1) IN (SELECT 3,4); SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1) IN (SELECT 5,6); SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1) IN (SELECT 3,4); SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1) IN (SELECT 5,6); SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1 DESC) IN (SELECT 3,4); SELECT (SELECT 3,4 UNION SELECT 5,6 ORDER BY 1 DESC) IN (SELECT 5,6); SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1 DESC) IN (SELECT 3,4); SELECT (SELECT 5,6 UNION SELECT 3,4 ORDER BY 1 DESC) IN (SELECT 5,6); } {1 0 1 0 0 1 0 1} finish_test |