Fix a bug in subquery generation when the subquery is a compound select.
Also added new tests to cover this case. (CVS 435) FossilOrigin-Name: aaf7fd4cef04d3d70a0444aad1b606bfc663c3e8
This commit is contained in:
drh
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manifest
20
manifest
@ -1,9 +1,9 @@
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C Version\s2.4.2\s(CVS\s441)
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D 2002-03-20T01:05:00
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C Fix\sa\sbug\sin\ssubquery\sgeneration\swhen\sthe\ssubquery\sis\sa\scompound\sselect.\nAlso\sadded\snew\stests\sto\scover\sthis\scase.\s(CVS\s435)
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D 2002-03-23T00:31:29
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F Makefile.in 50f1b3351df109b5774771350d8c1b8d3640130d
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F Makefile.template 89e373b2dad0321df00400fa968dc14b61a03296
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F README a4c0ba11354ef6ba0776b400d057c59da47a4cc0
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F VERSION 0ca6986d9c1379523ecd35eec51f54857a8afd48
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F VERSION 50919ab26b7c119efb3f2fa5000696e75a9fb378
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F aclocal.m4 11faa843caa38fd451bc6aeb43e248d1723a269d
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F config.guess f38b1e93d1e0fa6f5a6913e9e7b12774b9232588
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F config.log 6a73d03433669b10a3f0c221198c3f26b9413914
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@ -37,7 +37,7 @@ F src/pager.h 6fddfddd3b73aa8abc081b973886320e3c614f0e
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F src/parse.y 9a8be2eebad16f636292967d328882c2d07e30a9
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F src/printf.c 300a90554345751f26e1fc0c0333b90a66110a1d
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F src/random.c 19e8e00fe0df32a742f115773f57651be327cabe
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F src/select.c 08b9d8acf75ad985dabde1b3c53025f59d5b09c6
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F src/select.c 9323800e2937e84b52c198fffc51995d822b1779
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F src/shell.c b3454229599246b944cdb5b95753af3fca5d8bb0
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F src/shell.tcl 27ecbd63dd88396ad16d81ab44f73e6c0ea9d20e
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F src/sqlite.h.in 1dae50411aee9439860d7fbe315183c582d27197
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@ -88,7 +88,7 @@ F test/select2.test ed2c1882857106b85478f54f67000e14966be4c4
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F test/select3.test 9469c332250a75a0ef1771fb5da62dc04ec77f18
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F test/select4.test 29a2ffb187f3d8b6ca42a0a6b619e9cabe12e228
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F test/select5.test c2a6c4a003316ee42cbbd689eebef8fdce0db2ac
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F test/select6.test cc9e2efeefe73399b757d952800df2032560be87
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F test/select6.test 5b9b52e84c1f44fd3a4eeb75e78deceb085b78b0
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F test/sort.test 3b996ce7ca385f9cd559944ac0f4027a23aa546b
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F test/subselect.test 335d3dad8d585726c447dfee8d9c4f7383c76b78
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F test/table.test 17b0b6eafa3faaee5545b7a94e6c1ff73f0880f3
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@ -115,12 +115,12 @@ F www/arch.fig d5f9752a4dbf242e9cfffffd3f5762b6c63b3bcf
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F www/arch.png 82ef36db1143828a7abc88b1e308a5f55d4336f4
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F www/arch.tcl 72a0c80e9054cc7025a50928d28d9c75c02c2b8b
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F www/c_interface.tcl 567cda531aac9d68a61ef02e26c6b202bd856db2
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F www/changes.tcl d2530398b3f7d12de2dc1083fe6d082309184389
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F www/changes.tcl 65c1e63566ddbe09ef016c4c78ed21b6537af512
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F www/conflict.tcl 81dd21f9a679e60aae049e9dd8ab53d59570cda2
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F www/crosscompile.tcl 3622ebbe518927a3854a12de51344673eb2dd060
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F www/download.tcl a6d75b8b117cd33dcb090bef7e80d7556d28ebe0
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F www/dynload.tcl 02eb8273aa78cfa9070dd4501dca937fb22b466c
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F www/faq.tcl c6d1d6d69a9083734ee73d1b5ee4253ae8f10074
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F www/faq.tcl fb1e92e2f604546694f83a36d969492f52fb685d
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F www/formatchng.tcl 2ce21ff30663fad6618198fe747ce675df577590
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F www/index.tcl eacd99bcc3132d6e6b74a51422d415cc0bf7bfdf
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F www/lang.tcl d589f9a39c925d81fa9198b9215b4fd56da4192b
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@ -130,7 +130,7 @@ F www/speed.tcl da8afcc1d3ccc5696cfb388a68982bc3d9f7f00f
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F www/sqlite.tcl 8b5884354cb615049aed83039f8dfe1552a44279
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F www/tclsqlite.tcl 829b393d1ab187fd7a5e978631b3429318885c49
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F www/vdbe.tcl 2013852c27a02a091d39a766bc87cff329f21218
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P c2e0b79057c9c643e7432e62c90399c8f34339f9
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R febee3eb313aa60c56ad4221de74bd94
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P 49d032325553fa1dd7f31b852753cc6c9226d8f7
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R afbadc87908df7153445a9059806e384
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U drh
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Z 108938d1bedd485ef53334a9e6726bd8
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Z 20aa27678bc9a0889ed47e36fd4764d7
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@ -1 +1 @@
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49d032325553fa1dd7f31b852753cc6c9226d8f7
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aaf7fd4cef04d3d70a0444aad1b606bfc663c3e8
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@ -12,7 +12,7 @@
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** This file contains C code routines that are called by the parser
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** to handle SELECT statements in SQLite.
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**
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** $Id: select.c,v 1.76 2002/03/14 14:33:31 drh Exp $
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** $Id: select.c,v 1.77 2002/03/23 00:31:29 drh Exp $
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*/
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#include "sqliteInt.h"
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@ -610,6 +610,13 @@ static int multiSelect(Parse *pParse, Select *p, int eDest, int iParm){
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v = sqliteGetVdbe(pParse);
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if( v==0 ) return 1;
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/* Create the destination temporary table if necessary
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*/
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if( eDest==SRT_TempTable ){
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sqliteVdbeAddOp(v, OP_OpenTemp, iParm, 0);
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eDest = SRT_Table;
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}
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/* Process the UNION or INTERSECTION
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*/
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base = pParse->nTab;
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@ -12,7 +12,7 @@
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# focus of this file is testing SELECT statements that contain
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# subqueries in their FROM clause.
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#
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# $Id: select6.test,v 1.7 2002/03/13 18:54:09 drh Exp $
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# $Id: select6.test,v 1.8 2002/03/23 00:31:29 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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@ -292,4 +292,48 @@ do_test select6-5.2 {
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}
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} {8 5 8 9 6 9 10 7 10}
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# Tests of compound sub-selects
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#
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do_test select5-6.1 {
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execsql {
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DELETE FROM t1 WHERE x>4;
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SELECT * FROM t1
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}
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} {1 1 2 2 3 2 4 3}
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do_test select6-6.2 {
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execsql {
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SELECT * FROM (
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SELECT x AS 'a' FROM t1 UNION ALL SELECT x+10 AS 'a' FROM t1
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) ORDER BY a;
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}
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} {1 2 3 4 11 12 13 14}
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do_test select6-6.3 {
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execsql {
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SELECT * FROM (
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SELECT x AS 'a' FROM t1 UNION ALL SELECT x+1 AS 'a' FROM t1
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) ORDER BY a;
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}
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} {1 2 2 3 3 4 4 5}
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do_test select6-6.4 {
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execsql {
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SELECT * FROM (
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SELECT x AS 'a' FROM t1 UNION SELECT x+1 AS 'a' FROM t1
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) ORDER BY a;
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}
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} {1 2 3 4 5}
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do_test select6-6.5 {
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execsql {
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SELECT * FROM (
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SELECT x AS 'a' FROM t1 INTERSECT SELECT x+1 AS 'a' FROM t1
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) ORDER BY a;
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}
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} {2 3 4}
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do_test select6-6.6 {
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execsql {
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SELECT * FROM (
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SELECT x AS 'a' FROM t1 EXCEPT SELECT x*2 AS 'a' FROM t1
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) ORDER BY a;
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}
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} {1 3}
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finish_test
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@ -17,6 +17,11 @@ proc chng {date desc} {
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puts "<DD><P><UL>$desc</UL></P></DD>"
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}
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chng {2002 Mar 122 (2.4.3)} {
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<li>Fix a bug in SELECT that occurs when a compound SELECT is used as a
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subquery in the FROM of a SELECT.</li>
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}
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chng {2002 Mar 14 (2.4.2)} {
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<li>Bug fix: Fix an assertion failure that occurred when ROWID was a column
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in a SELECT statement on a view.</li>
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13
www/faq.tcl
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www/faq.tcl
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#
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# Run this script to generated a faq.html output file
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#
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set rcsid {$Id: faq.tcl,v 1.8 2002/02/19 22:42:06 drh Exp $}
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set rcsid {$Id: faq.tcl,v 1.9 2002/03/23 00:31:29 drh Exp $}
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puts {<html>
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<head>
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@ -194,12 +194,11 @@ faq {
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faq {
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Is SQLite threadsafe?
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} {
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<p>Almost. In the source file named "<b>os.c</b>" there are two functions
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named <b>sqliteOsEnterMutex()</b> and <b>sqliteOsLeaveMutex()</b>. In
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the default distribution these functions are stubs. They do not do anything.
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If you change them so that they actually implement a mutex, then SQLite
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will be threadsafe. But because these routines are stubs, the default
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SQLite distribution is not threadsafe.</p>
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<p>Yes. Sometimes. In order to be thread-safe, SQLite must be compiled
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with the THREADSAFE preprocessor macro set to 1. In the default
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distribution, the windows binaries are compiled to be threadsafe but
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the linux binaries are not. If you want to change this, you'll have to
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recompile.</p>
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<p>"Threadsafe" in the previous paragraph means that two or more threads
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can run SQLite at the same time on different "<b>sqlite</b>" structures
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