From: drh <drh@noemail.net>
Date: Fri, 28 Sep 2012 00:44:28 +0000 (+0000)
Subject: Query planner enhancements to be more agressive about optimizing out ORDER BY
X-Git-Tag: version-3.7.15~112
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f784c1ede942139d136f7c00a1d8fb30a4a31f18;p=thirdparty%2Fsqlite.git

Query planner enhancements to be more agressive about optimizing out ORDER BY
clauses - in particular the query planner now has the ability to omit ORDER BY
clauses that span multiple tables in a join.

FossilOrigin-Name: 1e874629d7cf568368b912b295bd3001147d0b52
---

f784c1ede942139d136f7c00a1d8fb30a4a31f18
diff --cc manifest
index ef93e95f00,5624000edc..6358e6d360
--- a/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Modify\sgeneration\sof\sresource\sheader\sfile\sfor\sMSVC\sso\sthat\sit\scan\swork\sfrom\soutside\sthe\sworking\sdirectory.
- D 2012-09-27T21:03:53.180
 -C Fix\ssome\scorner\scase\sbehavior\sin\sthe\snew\sORDER\sBY\soptimization\slogic.\nRemove\sthe\sSQLITE_OrderByIdx\sbit\sfrom\sthe\s\nSQLITE_TESTCTRL_OPTIMIZATIONS\smask,\ssince\senabling\sit\scaused\smany\nTH3\stests\sto\sfail\swhen\sthe\sNO_OPT\sconfiguration\sparameter\swas\sengaged,\nand\ssince\sthere\sreally\sisn't\sany\sneed\sto\sturn\sthat\soptimization\soff.\nThe\sSQLITE_OrderByIdxJoin\sbit\sremains.
 -D 2012-09-27T23:27:23.679
++C Query\splanner\senhancements\sto\sbe\smore\sagressive\sabout\soptimizing\sout\sORDER\sBY\nclauses\s-\sin\sparticular\sthe\squery\splanner\snow\shas\sthe\sability\sto\somit\sORDER\sBY\nclauses\sthat\sspan\smultiple\stables\sin\sa\sjoin.
++D 2012-09-28T00:44:28.903
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  F src/lempar.c 0ee69fca0be54cd93939df98d2aca4ca46f44416
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  F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
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diff --cc manifest.uuid
index a8c2936eb8,2b03b066ba..bdeb814a07
--- a/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
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