database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-12-24 14:17:58 +03:00
Code Activity

Fix a problem with LIMIT and OFFSET clauses on the parent query when optimizing a UNION ALL sub-select. (CVS 5332)

Browse Source 
FossilOrigin-Name: a79786a961dba8f4ffaddbe55e6467c14b12f7d6
This commit is contained in:
danielk1977
2008-07-01 14:39:35 +00:00
parent f23329a221
commit 4b86ef1d87
5 changed files with 32 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
test/select9.test
View File

@@ -10,7 +10,7 @@
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# $Id: select9.test,v 1.3 2008/06/30 07:53:10 danielk1977 Exp $
# $Id: select9.test,v 1.4 2008/07/01 14:39:35 danielk1977 Exp $
# The tests in this file are focused on test compound SELECT statements
# that have any or all of an ORDER BY, LIMIT or OFFSET clauses. As of
@@ -360,7 +360,7 @@ proc cksort {sql} {
# CREATE VIEW v1 AS SELECT a FROM t1 UNION ALL SELECT d FROM t2
# SELECT a FROM v1 ORDER BY 1
#
# Currently it is not.
# It turns out that it is.
#
do_test select9-3.1 {
cksort { SELECT a FROM t1 ORDER BY 1 }
@@ -379,7 +379,7 @@ do_test select9-3.4 {
do_test select9-3.5 {
execsql { CREATE VIEW v1 AS SELECT a FROM t1 UNION ALL SELECT d FROM t2 }
cksort { SELECT a FROM v1 ORDER BY 1 LIMIT 5 }
} {1 1 2 2 3 sort}
} {1 1 2 2 3 nosort}
do_test select9-3.X {
execsql {
DROP INDEX i1;

15
test/selectB.test
View File

@@ -10,7 +10,7 @@
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# $Id: selectB.test,v 1.1 2008/07/01 14:09:14 danielk1977 Exp $
# $Id: selectB.test,v 1.2 2008/07/01 14:39:35 danielk1977 Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@@ -93,6 +93,19 @@ test_transform selectB-1.6 {
ORDER BY a
} {14 21}
test_transform selectB-1.7 {
SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2) ORDER BY 1 LIMIT 2
} {
SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 2
} {2 3}
test_transform selectB-1.8 {
SELECT * FROM (SELECT a FROM t1 UNION ALL SELECT d FROM t2) ORDER BY 1
LIMIT 2 OFFSET 3
} {
SELECT a FROM t1 UNION ALL SELECT d FROM t2 ORDER BY 1 LIMIT 2 OFFSET 3
} {12 14}
finish_test