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Refinements to the enhanced IN-operator logic.

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FossilOrigin-Name: 92ba2821468ecbfac2469161d81c873de67b2243
This commit is contained in:
drh
2014-08-04 16:39:39 +00:00
parent bb53ecb1db
commit a976979b6e
3 changed files with 10 additions and 14 deletions
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15
manifest
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@@ -1,5 +1,5 @@
C Enhancements\sto\sthe\scode\sgenerator\sfor\sthe\sIN\soperator\sthat\sresult\sin\smuch\nfaster\squeries\sin\ssome\scases,\sfor\sexample\swhen\sthe\sRHS\sof\sthe\sIN\soperator\nchanges\sfor\seach\srow\sof\sa\slarge\stable\sscan.
D 2014-08-02T21:03:33.699
C Refinements\sto\sthe\senhanced\sIN-operator\slogic.
D 2014-08-04T16:39:39.657
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 5eb79e334a5de69c87740edd56af6527dd219308
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -176,7 +176,7 @@ F src/complete.c dc1d136c0feee03c2f7550bafc0d29075e36deac
F src/ctime.c 0231df905e2c4abba4483ee18ffc05adc321df2a
F src/date.c 593c744b2623971e45affd0bde347631bdfa4625
F src/delete.c bcf8f72126cea80fc3d5bc5494cf19b3f8935aaf
F src/expr.c 89574df1ed8ca967fdd5be0e370722e508b91c2b
F src/expr.c 8f5e763623d79e71d60998a4e714324ca0e9380d
F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
F src/fkey.c 8545f3b36da47473e10800ea4fb0810fd4062514
F src/func.c 3bc223ea36cd29a91c481485343d0ee4257ab8dc
@@ -1185,10 +1185,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P ba7826542908eac2e14789d183d0b3e35b143fed
R 93a5c3d553517a616682ed62728bfb2c
T *branch * IN-operator-improvements
T *sym-IN-operator-improvements *
T -sym-trunk *
P 436e884215e2b33ca3fbb555362237b12827c07a
R 0000d96605770a7d4078c73a9916f937
U drh
Z c474e62d8861a07a170ddf9e71c3b1a9
Z 246e982e6330087cd1ec561e7d991220

2
manifest.uuid
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@@ -1 +1 @@
436e884215e2b33ca3fbb555362237b12827c07a
92ba2821468ecbfac2469161d81c873de67b2243

7
src/expr.c
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@@ -2006,14 +2006,13 @@ static void sqlite3ExprCodeIN(
int regCkNull = 0;
int ii;
assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
sqlite3VdbeAddOp2(v, OP_IsNull, r1, destIfNull); VdbeCoverage(v);
if( destIfNull!=destIfFalse ){
regCkNull = sqlite3GetTempReg(pParse);
sqlite3VdbeAddOp2(v, OP_Integer, 0, regCkNull);
sqlite3VdbeAddOp3(v, OP_BitAnd, r1, r1, regCkNull);
}
for(ii=0; ii<pList->nExpr; ii++){
r2 = sqlite3ExprCodeTemp(pParse, pList->a[ii].pExpr, &regToFree);
if( regCkNull ){
if( regCkNull && sqlite3ExprCanBeNull(pList->a[ii].pExpr) ){
sqlite3VdbeAddOp3(v, OP_BitAnd, regCkNull, r2, regCkNull);
}
if( ii<pList->nExpr-1 || destIfNull!=destIfFalse ){
@@ -2722,7 +2721,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
addr = sqlite3VdbeAddOp1(v, op, r1);
VdbeCoverageIf(v, op==TK_ISNULL);
VdbeCoverageIf(v, op==TK_NOTNULL);
sqlite3VdbeAddOp2(v, OP_AddImm, target, -1);
sqlite3VdbeAddOp2(v, OP_Integer, 0, target);
sqlite3VdbeJumpHere(v, addr);
break;
}