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Adding the "noskipscan" token to an sqlite_stat1.stat field prevents an

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index for being used with the skip-scan algorithm.

FossilOrigin-Name: 00fe09505792cd0d104b2da9d040f023e30fa871
This commit is contained in:
drh
2014-11-15 19:08:13 +00:00
parent dd715f7c57
commit f9df2fbdcd
6 changed files with 37 additions and 11 deletions
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2
src/analyze.c
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@@ -1466,6 +1466,8 @@ static void decodeIntArray(
pIndex->bUnordered = 1;
}else if( sqlite3_strglob("sz=[0-9]*", z)==0 ){
pIndex->szIdxRow = sqlite3LogEst(sqlite3Atoi(z+3));
}else if( sqlite3_strglob("noskipscan*", z)==0 ){
pIndex->noSkipScan = 1;
}
#ifdef SQLITE_ENABLE_COSTMULT
else if( sqlite3_strglob("costmult=[0-9]*",z)==0 ){