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Overview
| Comment: | :-) (CVS 77) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | b3fb15ccde399318bde8c87362ecaa3a |
| User & Date: | drh 2000-06-08 01:55:30 |
Context
|
2000-06-08
| ||
| 11:13 | :-) (CVS 78) check-in: 923c14fe user: drh tags: trunk | |
| 01:55 | :-) (CVS 77) check-in: b3fb15cc user: drh tags: trunk | |
| 00:28 | :-) (CVS 76) check-in: 19029233 user: drh tags: trunk | |
Changes
Changes to src/select.c.
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** drh@hwaci.com ** http://www.hwaci.com/drh/ ** ************************************************************************* ** This file contains C code routines that are called by the parser ** to handle SELECT statements. ** ** $Id: select.c,v 1.18 2000/06/08 00:28:52 drh Exp $ */ #include "sqliteInt.h" /* ** Allocate a new Select structure and return a pointer to that ** structure. */ ................................................................................ if( mustComplete ){ for(i=0; i<pOrderBy->nExpr; i++){ pOrderBy->a[i].done = 0; } } if( fillInColumnList(pParse, pSelect) ){ return 1; } if( pSelect->pPrior ){ matchOrderbyToColumn(pParse, pSelect->pPrior, pOrderBy, iTable, 0); } pEList = pSelect->pEList; for(i=0; i<pOrderBy->nExpr; i++){ Expr *pE = pOrderBy->a[i].pExpr; if( pOrderBy->a[i].done ) continue; for(j=0; j<pEList->nExpr; j++){ int match = 0; if( pEList->a[i].zName && (pE->op==TK_ID || pE->op==TK_STRING) ){ char *zName = pEList->a[i].zName; char *zLabel = 0; sqliteSetString(&zLabel, pE->token.z, pE->token.n, 0); sqliteDequote(zLabel); if( sqliteStrICmp(zName, zLabel)==0 ){ match = 1; } } if( match==0 && sqliteExprCompare(pE, pEList->a[i].pExpr) ){ match = 1; ................................................................................ pE->op = TK_FIELD; pE->iField = j; pE->iTable = iTable; pOrderBy->a[i].done = 1; break; } } if( mustComplete ){ char zBuf[30]; sprintf(zBuf,"%d",i+1); sqliteSetString(&pParse->zErrMsg, "ORDER BY term number ", zBuf, " does not match any result column", 0); pParse->nErr++; nErr++; break; |
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** drh@hwaci.com ** http://www.hwaci.com/drh/ ** ************************************************************************* ** This file contains C code routines that are called by the parser ** to handle SELECT statements. ** ** $Id: select.c,v 1.19 2000/06/08 01:55:30 drh Exp $ */ #include "sqliteInt.h" /* ** Allocate a new Select structure and return a pointer to that ** structure. */ ................................................................................ if( mustComplete ){ for(i=0; i<pOrderBy->nExpr; i++){ pOrderBy->a[i].done = 0; } } if( fillInColumnList(pParse, pSelect) ){ return 1; } if( pSelect->pPrior ){ if( matchOrderbyToColumn(pParse, pSelect->pPrior, pOrderBy, iTable, 0) ){ return 1; } } pEList = pSelect->pEList; for(i=0; i<pOrderBy->nExpr; i++){ Expr *pE = pOrderBy->a[i].pExpr; int match = 0; if( pOrderBy->a[i].done ) continue; for(j=0; j<pEList->nExpr; j++){ if( pEList->a[i].zName && (pE->op==TK_ID || pE->op==TK_STRING) ){ char *zName = pEList->a[i].zName; char *zLabel = 0; sqliteSetNString(&zLabel, pE->token.z, pE->token.n, 0); sqliteDequote(zLabel); if( sqliteStrICmp(zName, zLabel)==0 ){ match = 1; } } if( match==0 && sqliteExprCompare(pE, pEList->a[i].pExpr) ){ match = 1; ................................................................................ pE->op = TK_FIELD; pE->iField = j; pE->iTable = iTable; pOrderBy->a[i].done = 1; break; } } if( !match && mustComplete ){ char zBuf[30]; sprintf(zBuf,"%d",i+1); sqliteSetString(&pParse->zErrMsg, "ORDER BY term number ", zBuf, " does not match any result column", 0); pParse->nErr++; nErr++; break; |
Changes to test/select4.test.
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# http://www.hwaci.com/drh/ # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing UNION, INTERSECT and EXCEPT operators # in SELECT statements. # # $Id: select4.test,v 1.1 2000/06/08 00:28:52 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Build some test data # do_test select4-1.0 { set fd [open data1.txt w] for {set i 1} {$i<32} {incr i} { for {set j 0} {pow(2,$j)<$i} {incr j} {} puts $fd "$i\t$j" } close $fd execsql { CREATE TABLE t1(n int, log int); COPY t1 FROM 'data1.txt' } file delete data1.txt execsql {SELECT DISTINCT log FROM t1 ORDER BY log} } {0 1 2 3 4 5} # Union All operator # do_test select4-1.1a { lsort [execsql {SELECT DISTINCT log FROM t1}] ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 UNION ALL SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {0 1 2 2 3 3 3 3} # Union operator # do_test select4-2.1 { execsql { SELECT DISTINCT log FROM t1 UNION ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 UNION SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {0 1 2 2 3 3 3 3} # Except operator # do_test select4-3.1 { execsql { SELECT DISTINCT log FROM t1 EXCEPT ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 EXCEPT SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {0 1 2 2} # Intersect operator # do_test select4-4.1 { execsql { SELECT DISTINCT log FROM t1 INTERSECT ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 INTERSECT SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {3} finish_test |
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# http://www.hwaci.com/drh/ # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing UNION, INTERSECT and EXCEPT operators # in SELECT statements. # # $Id: select4.test,v 1.2 2000/06/08 01:55:31 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Build some test data # set fd [open data1.txt w] for {set i 1} {$i<32} {incr i} { for {set j 0} {pow(2,$j)<$i} {incr j} {} puts $fd "$i\t$j" } close $fd execsql { CREATE TABLE t1(n int, log int); COPY t1 FROM 'data1.txt' } file delete data1.txt do_test select4-1.0 { execsql {SELECT DISTINCT log FROM t1 ORDER BY log} } {0 1 2 3 4 5} # Union All operator # do_test select4-1.1a { lsort [execsql {SELECT DISTINCT log FROM t1}] ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 UNION ALL SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {0 1 2 2 3 3 3 3} do_test select4-1.3 { set v [catch {execsql { SELECT DISTINCT log FROM t1 ORDER BY log UNION ALL SELECT n FROM t1 WHERE log=3 ORDER BY log; }} msg] lappend v $msg } {1 {ORDER BY clause should come after UNION ALL not before}} # Union operator # do_test select4-2.1 { execsql { SELECT DISTINCT log FROM t1 UNION ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 UNION SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {0 1 2 2 3 3 3 3} do_test select4-2.3 { set v [catch {execsql { SELECT DISTINCT log FROM t1 ORDER BY log UNION SELECT n FROM t1 WHERE log=3 ORDER BY log; }} msg] lappend v $msg } {1 {ORDER BY clause should come after UNION not before}} # Except operator # do_test select4-3.1 { execsql { SELECT DISTINCT log FROM t1 EXCEPT ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 EXCEPT SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {0 1 2 2} do_test select4-3.3 { set v [catch {execsql { SELECT DISTINCT log FROM t1 ORDER BY log EXCEPT SELECT n FROM t1 WHERE log=3 ORDER BY log; }} msg] lappend v $msg } {1 {ORDER BY clause should come after EXCEPT not before}} # Intersect operator # do_test select4-4.1 { execsql { SELECT DISTINCT log FROM t1 INTERSECT ................................................................................ execsql { SELECT log FROM t1 WHERE n IN (SELECT DISTINCT log FROM t1 INTERSECT SELECT n FROM t1 WHERE log=3) ORDER BY log; } } {3} do_test select4-4.3 { set v [catch {execsql { SELECT DISTINCT log FROM t1 ORDER BY log INTERSECT SELECT n FROM t1 WHERE log=3 ORDER BY log; }} msg] lappend v $msg } {1 {ORDER BY clause should come after INTERSECT not before}} # Various error messages while processing UNION or INTERSECT # do_test select4-5.1 { set v [catch {execsql { SELECT DISTINCT log FROM t2 UNION ALL SELECT n FROM t1 WHERE log=3 ORDER BY log; }} msg] lappend v $msg } {1 {no such table: t2}} do_test select4-5.2 { set v [catch {execsql { SELECT DISTINCT log AS "xyzzy" FROM t1 UNION ALL SELECT n FROM t1 WHERE log=3 ORDER BY xyzzy; }} msg] lappend v $msg } {0 {0 1 2 3 4 5 5 6 7 8}} do_test select4-5.2b { set v [catch {execsql { SELECT DISTINCT log xyzzy FROM t1 UNION ALL SELECT n FROM t1 WHERE log=3 ORDER BY 'xyzzy'; }} msg] lappend v $msg } {0 {0 1 2 3 4 5 5 6 7 8}} do_test select4-5.2c { set v [catch {execsql { SELECT DISTINCT log FROM t1 UNION ALL SELECT n FROM t1 WHERE log=3 ORDER BY 'xyzzy'; }} msg] lappend v $msg } {1 {ORDER BY term number 1 does not match any result column}} do_test select4-5.2d { set v [catch {execsql { SELECT DISTINCT log FROM t1 INTERSECT SELECT n FROM t1 WHERE log=3 ORDER BY 'xyzzy'; }} msg] lappend v $msg } {1 {ORDER BY term number 1 does not match any result column}} do_test select4-5.2e { set v [catch {execsql { SELECT DISTINCT log FROM t1 UNION ALL SELECT n FROM t1 WHERE log=3 ORDER BY n; }} msg] lappend v $msg } {0 {0 1 2 3 4 5 5 6 7 8}} do_test select4-5.3 { set v [catch {execsql { SELECT DISTINCT log, n FROM t1 UNION ALL SELECT n FROM t1 WHERE log=3 ORDER BY log; }} msg] lappend v $msg } {1 {SELECTs to the left and right of UNION ALL do not have the same number of result columns}} do_test select4-5.4 { set v [catch {execsql { SELECT log FROM t1 WHERE n=2 UNION ALL SELECT log FROM t1 WHERE n=3 UNION ALL SELECT log FROM t1 WHERE n=4 UNION ALL SELECT log FROM t1 WHERE n=5 ORDER BY log; }} msg] lappend v $msg } {0 {1 2 2 3}} finish_test |