From: drh <drh@noemail.net>
Date: Fri, 23 Sep 2016 18:13:01 +0000 (+0000)
Subject: New test case for the ORDER BY LIMIT optimization.
X-Git-Tag: version-3.15.0~57
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8dd099bbaa84abf5e240a5b0acef78bccbef54cb;p=thirdparty%2Fsqlite.git

New test case for the ORDER BY LIMIT optimization.

FossilOrigin-Name: 9a5a489d0d344274d0fc9fb9303503a454f42844
---

diff --git a/manifest b/manifest
index 31f00c98b9..0d78852826 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\sa\spotential\snull-pointer\sdereference\sand\scrash\sin\sthe\scase\swhere\sone\nthread\sis\scalling\ssqlite3_column_text()\sand\sanother\sthread\sis\scalling\nsqlite3_step()\son\sthe\ssame\sprepared\sstatement\sat\sthe\ssame\sinstant.
-D 2016-09-22T21:37:18.049
+C New\stest\scase\sfor\sthe\sORDER\sBY\sLIMIT\soptimization.
+D 2016-09-23T18:13:01.106
 F Makefile.in 6fd48ffcf7c2deea7499062d1f3747f986c19678
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 5151cc64c4c05f3455f4f692ad11410a810d937f
@@ -893,7 +893,7 @@ F test/like.test 81632c437a947bf1f7130b19537da6a1a844806a
 F test/like2.test 3b2ee13149ba4a8a60b59756f4e5d345573852da
 F test/like3.test 3608a2042b6f922f900fbfd5d3ce4e7eca57f7c4
 F test/limit.test 0c99a27a87b14c646a9d583c7c89fd06c352663e
-F test/limit2.test ac97b8d07060a0280162ba4159e4c0c765861127
+F test/limit2.test 7e7744cc548d7e4c92e1dd3edc30dd0f86adafd5
 F test/loadext.test d077450695ddb5c1ea3ad7d48e5f5850fe732ad9
 F test/loadext2.test 0408380b57adca04004247179837a18e866a74f7
 F test/lock.test be4fe08118fb988fed741f429b7dd5d65e1c90db
@@ -1525,7 +1525,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P c3774c6a5fe48af91fda28e9e18c6ed9053ea992
-R 6375993a9d5ddbf71b5ded7742ff83bd
+P ee1382a36303eff8d94275ac3b12e5ce398ee620
+R 414a8fb536c6a3f96976785b914f6d34
 U drh
-Z 824a3b47745c16899f3e858caef9c3bd
+Z d5fb1d24e590d07d2266646af9025a8e
diff --git a/manifest.uuid b/manifest.uuid
index bd5435edc8..b0cfffb335 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-ee1382a36303eff8d94275ac3b12e5ce398ee620
\ No newline at end of file
+9a5a489d0d344274d0fc9fb9303503a454f42844
\ No newline at end of file
diff --git a/test/limit2.test b/test/limit2.test
index 0f82ab8d55..4d03180729 100644
--- a/test/limit2.test
+++ b/test/limit2.test
@@ -109,7 +109,15 @@ do_execsql_test limit2-310 {
   SELECT *,'.' FROM t300 WHERE a=0 AND (c=0 OR c=99) ORDER BY c DESC LIMIT 1;
 } {0 1 99 .}
 
-
-
+# Make sure the SELECT loop is ordered correctly for the direction of
+# the ORDER BY
+#
+do_execsql_test limit2-400 {
+  CREATE TABLE t400(a,b);
+  CREATE INDEX t400_ab ON t400(a,b);
+  INSERT INTO t400(a,b) VALUES(1,90),(1,40),(2,80),(2,30),(3,70),(3,20);
+  SELECT *,'x' FROM t400 WHERE a IN (1,2,3) ORDER BY b DESC LIMIT 3;
+  SELECT *,'y' FROM t400 WHERE a IN (1,2,3) ORDER BY +b DESC LIMIT 3;
+} {1 90 x 2 80 x 3 70 x 1 90 y 2 80 y 3 70 y}
 
 finish_test