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Add a Bloom filter to the automatic-index mechanism.

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FossilOrigin-Name: 50ac4de1d7cbb586ea7969e1ae80ea8b021e194edc2fa7db19374b4ee9369bee
This commit is contained in:
drh
2021-12-01 16:31:02 +00:00
parent c1085ea412
commit 2db144c33b
9 changed files with 143 additions and 16 deletions
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8
src/wherecode.c
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@@ -1511,6 +1511,10 @@ Bitmask sqlite3WhereCodeOneLoopStart(
iRowidReg = codeEqualityTerm(pParse, pTerm, pLevel, 0, bRev, iReleaseReg);
if( iRowidReg!=iReleaseReg ) sqlite3ReleaseTempReg(pParse, iReleaseReg);
addrNxt = pLevel->addrNxt;
if( pLevel->regFilter ){
sqlite3VdbeAddOp4Int(v, OP_Filter, pLevel->regFilter, addrNxt,
iRowidReg, 1);
}
sqlite3VdbeAddOp3(v, OP_SeekRowid, iCur, addrNxt, iRowidReg);
VdbeCoverage(v);
pLevel->op = OP_Noop;
@@ -1836,6 +1840,10 @@ Bitmask sqlite3WhereCodeOneLoopStart(
sqlite3VdbeAddOp2(v, OP_Integer, 1, regBignull);
VdbeComment((v, "NULL-scan pass ctr"));
}
if( pLevel->regFilter ){
sqlite3VdbeAddOp4Int(v, OP_Filter, pLevel->regFilter, addrNxt,
regBase, nConstraint);
}
op = aStartOp[(start_constraints<<2) + (startEq<<1) + bRev];
assert( op!=0 );