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Small performance enhancement in wherePathSolver()

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FossilOrigin-Name: bdab69641df4704f7b080cf7841bbf39da9160222f7b664a79ed662b70ca7b0a
This commit is contained in:
drh 2024-05-29 14:04:52 +00:00
parent bb24c75b41
commit eccb42eb0e
3 changed files with 12 additions and 8 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Improvements\sto\scomments\sand\sdebugging\soutput.
D 2024-05-29T13:29:39.023
C Small\sperformance\senhancement\sin\swherePathSolver()
D 2024-05-29T14:04:52.593
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F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -840,7 +840,7 @@ F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
F src/wal.c 887fc4ca3f020ebb2e376f222069570834ac63bf50111ef0cbf3ae417048ed89
F src/wal.h ba252daaa94f889f4b2c17c027e823d9be47ce39da1d3799886bbd51f0490452
F src/walker.c 7c7ea0115345851c3da4e04e2e239a29983b61fb5b038b94eede6aba462640e2
F src/where.c 8b1e8f8db0d1be2e724c55dd2bd9d6df0d4084455fe5d7c08533ad56bc51f0e9
F src/where.c ae248eaaa25432b770147e3f76e2b3a933669f207b5b42a831128bb762b73e02
F src/whereInt.h 002adc3aa2cc10733b9b27958fdbe893987cd989fab25a9853941c1f9b9b0a65
F src/wherecode.c d5184620bcb5265d59072cb66e1386bfe0331a9ce7614286f9ab79a4fcd00fb8
F src/whereexpr.c 67d15caf88a1a9528283d68ff578e024cf9fe810b517bb0343e5aaf695ad97dd
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# Remove this line to create a well-formed Fossil manifest.

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@ -1 +1 @@
85164ee155e42809fe34e6c6b6fbe0a2baa9d616326a811173a0b0c8a885fcce
bdab69641df4704f7b080cf7841bbf39da9160222f7b664a79ed662b70ca7b0a

6
src/where.c
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@ -5457,7 +5457,10 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){
/* At this point, pWLoop is a candidate to be the next loop.
** Compute its cost */
rUnsorted = sqlite3LogEstAdd(pWLoop->rSetup,pWLoop->rRun + pFrom->nRow);
rUnsorted = pWLoop->rRun + pFrom->nRow;
if( pWLoop->rSetup ){
rUnsorted = sqlite3LogEstAdd(pWLoop->rSetup, rUnsorted);
}
rUnsorted = sqlite3LogEstAdd(rUnsorted, pFrom->rUnsorted);
nOut = pFrom->nRow + pWLoop->nOut;
maskNew = pFrom->maskLoop | pWLoop->maskSelf;
@ -5502,6 +5505,7 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){
** to (pTo->isOrdered==(-1))==(isOrdered==(-1))" for the range
** of legal values for isOrdered, -1..64.
*/
assert( nTo>0 );
for(jj=0, pTo=aTo; jj<nTo; jj++, pTo++){
if( pTo->maskLoop==maskNew
&& ((pTo->isOrdered^isOrdered)&0x80)==0