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Ensure that the NULL-scan pass counter is initialized when a ORDER BY NULLS LAST

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is used on the right table of a LEFT JOIN.  Ticket [e12a0ae526bb51c7].

FossilOrigin-Name: 704bb9a39acbee420c1d6ac9eb1466a02dd77d3334b938bfddf235973129b5fe
This commit is contained in:
drh
2020-03-02 01:16:33 +00:00
parent 0a21ea997d
commit 7f05d52c4c
4 changed files with 54 additions and 9 deletions
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3
src/wherecode.c
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@@ -1711,6 +1711,9 @@ Bitmask sqlite3WhereCodeOneLoopStart(
nExtraReg = 1;
bSeekPastNull = 1;
pLevel->regBignull = regBignull = ++pParse->nMem;
if( pLevel->iLeftJoin ){
sqlite3VdbeAddOp2(v, OP_Integer, 0, regBignull);
}
pLevel->addrBignull = sqlite3VdbeMakeLabel(pParse);
}