From: drh <>
Date: Thu, 6 Jun 2024 01:00:50 +0000 (+0000)
Subject: Small performance optimization in the operatorMask routine of the WHERE
X-Git-Tag: version-3.47.0~350
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=48f5e527283d1f8a3811bd157a15d1ae34ad03d7;p=thirdparty%2Fsqlite.git

Small performance optimization in the operatorMask routine of the WHERE
clause analysis logic.

FossilOrigin-Name: 9d69fc1c87ae673356869ecd89eb19734fd126702c0f9fe595336ecd7be89e08
---

diff --git a/manifest b/manifest
index 1062c51e50..4e7f7a5c77 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Small\sperformance\soptimization\sin\sthe\sallowedOp()\sroutine\sof\sthe\sWHERE\nclause\sanalysis\scode.
-D 2024-06-06T00:49:36.480
+C Small\sperformance\soptimization\sin\sthe\soperatorMask\sroutine\sof\sthe\sWHERE\nclause\sanalysis\slogic.
+D 2024-06-06T01:00:50.319
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -843,7 +843,7 @@ F src/walker.c 7c7ea0115345851c3da4e04e2e239a29983b61fb5b038b94eede6aba462640e2
 F src/where.c 343e74d65856665f2aac59a9fcefecfc988e9af4aafa0bd1b8332a89c6c725b4
 F src/whereInt.h 002adc3aa2cc10733b9b27958fdbe893987cd989fab25a9853941c1f9b9b0a65
 F src/wherecode.c c9cac0b0b8e809c5e7e79d7796918907fb685ad99be2aaa9737f9787aa47349c
-F src/whereexpr.c 6410cd2cd4f2d97c5c14bdd38650f0da712e75077d2014beff9a0bca93e2b893
+F src/whereexpr.c 52a59e9252d5823ce2214093ad137af6e3b793d11d76491c41d9a3bac5eb591a
 F src/window.c 5d95122dd330bfaebd732358c8ef067c5a9394a53ac249470d611d0ce2c52be2
 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
 F test/affinity2.test ce1aafc86e110685b324e9a763eab4f2a73f737842ec3b687bd965867de90627
@@ -2194,8 +2194,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 816d4749384c7f398912c905a16c83b88f4c55632050b4c6117c61301d1a53e1
-R 19dca2cd3f6ce49e135153d860cdf2bd
+P 4ba8be544711e07748e8dd3ca6b81f9897906061c0a1a1bb4fb3808dc27f734b
+R b3146f257e797db20c45e271ef1b262b
 U drh
-Z 62188313bf6cfe2c21e1198d3cb7d57d
+Z a340deed3f1e0f0688e4671428f60e91
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 506b63edcf..d88412a96b 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-4ba8be544711e07748e8dd3ca6b81f9897906061c0a1a1bb4fb3808dc27f734b
\ No newline at end of file
+9d69fc1c87ae673356869ecd89eb19734fd126702c0f9fe595336ecd7be89e08
\ No newline at end of file
diff --git a/src/whereexpr.c b/src/whereexpr.c
index 7bb2fc643f..41d6ac9f04 100644
--- a/src/whereexpr.c
+++ b/src/whereexpr.c
@@ -139,15 +139,16 @@ static u16 exprCommute(Parse *pParse, Expr *pExpr){
 static u16 operatorMask(int op){
   u16 c;
   assert( allowedOp(op) );
-  if( op==TK_IN ){
+  if( op>=TK_EQ ){
+    assert( (WO_EQ<<(op-TK_EQ)) < 0x7fff );
+    c = (u16)(WO_EQ<<(op-TK_EQ));
+  }else if( op==TK_IN ){
     c = WO_IN;
   }else if( op==TK_ISNULL ){
     c = WO_ISNULL;
-  }else if( op==TK_IS ){
-    c = WO_IS;
   }else{
-    assert( (WO_EQ<<(op-TK_EQ)) < 0x7fff );
-    c = (u16)(WO_EQ<<(op-TK_EQ));
+    assert( op==TK_IS );
+    c = WO_IS;
   }
   assert( op!=TK_ISNULL || c==WO_ISNULL );
   assert( op!=TK_IN || c==WO_IN );