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Performance improvement to sqlite3ExprCollSeq(). With this change, the

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performance of speed-check.sh is within 400,000 cycles of trunk.

FossilOrigin-Name: a5f86f49b7d9e52546f234f7c3bcbac6b0f78aa55a71c44ca69e21bc31139f3e
This commit is contained in:
drh 2018-07-27 18:19:12 +00:00
parent bcd15938ae
commit e081d73c46
3 changed files with 15 additions and 15 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Faster\simplementation\sof\ssqlite3IsBinary().
D 2018-07-27T18:12:40.840
C Performance\simprovement\sto\ssqlite3ExprCollSeq().\s\sWith\sthis\schange,\sthe\nperformance\sof\sspeed-check.sh\sis\swithin\s400,000\scycles\sof\strunk.
D 2018-07-27T18:19:12.560
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F Makefile.in 0a3a6c81e6fcb969ff9106e882f0a08547014ba463cb6beca4c4efaecc924ee6
@ -450,7 +450,7 @@ F src/date.c ebe1dc7c8a347117bb02570f1a931c62dd78f4a2b1b516f4837d45b7d6426957
F src/dbpage.c 4aa7f26198934dbd002e69418220eae3dbc71b010bbac32bd78faf86b52ce6c3
F src/dbstat.c edabb82611143727511a45ca0859b8cd037851ebe756ae3db289859dd18b6f91
F src/delete.c 4c8c7604277a2041647f96b78f4b9a47858e9217e4fb333d35e7b5ab32c5b57f
F src/expr.c fe08e0dbf1c561491f879cf4bbf9d3be5ff8ccb9555f60093d3c56c0c37a37b3
F src/expr.c 5b5e7b571f377ca76fc76eec0a684384483e0bf6525f6b561a09db09d81600eb
F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
F src/fkey.c b1da9ef8dc834603bb0d28972378a7ce65897847f9a1e89ab800bbdf24c788ee
F src/func.c 7c288b4ce309b5a8b8473514b88e1f8e69a80134509a8c0db8e39c858e367e7f
@ -1753,7 +1753,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 598d608359005b13fa1151c6c69f2fd12ef3ab7f563a035fc4a6f3c569dc6c67
R 1d79df50e5dd49c24c2c0d46db1dcbfe
P be05d0db09f43cc3362c28273463d1d236af737a4f8a494cf1050da07ed0df47
R 1753b15b3d22c91de99ab8b77a1df21b
U drh
Z d36b5ae00dc0d8f1b3add00c50463640
Z 1c821d2ad72826ccbc3322222c2b360d

2
manifest.uuid
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@ -1 +1 @@
be05d0db09f43cc3362c28273463d1d236af737a4f8a494cf1050da07ed0df47
a5f86f49b7d9e52546f234f7c3bcbac6b0f78aa55a71c44ca69e21bc31139f3e

16
src/expr.c
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@ -141,14 +141,6 @@ CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr){
while( p ){
int op = p->op;
if( p->flags & EP_Generic ) break;
if( op==TK_CAST || op==TK_UPLUS ){
p = p->pLeft;
continue;
}
if( op==TK_COLLATE || (op==TK_REGISTER && p->op2==TK_COLLATE) ){
pColl = sqlite3GetCollSeq(pParse, ENC(db), 0, p->u.zToken);
break;
}
if( (op==TK_AGG_COLUMN || op==TK_COLUMN
|| op==TK_REGISTER || op==TK_TRIGGER)
&& p->pTab!=0
@ -162,6 +154,14 @@ CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr){
}
break;
}
if( op==TK_CAST || op==TK_UPLUS ){
p = p->pLeft;
continue;
}
if( op==TK_COLLATE || (op==TK_REGISTER && p->op2==TK_COLLATE) ){
pColl = sqlite3GetCollSeq(pParse, ENC(db), 0, p->u.zToken);
break;
}
if( p->flags & EP_Collate ){
if( p->pLeft && (p->pLeft->flags & EP_Collate)!=0 ){
p = p->pLeft;