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Do not use a Bloom filter if any outer loop lacks STAT1 data, since without

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STAT1 data, the query planner cannot make an accurate determination of
whether or not a Bloom filter will be useful.  This fixes the problem
reported by [forum:/forumpost/56de336385|forum post 56de336385].

FossilOrigin-Name: e6ab96bd0b9efc51fd703bf7e92b079943ad9a3b92183d434adc11fb7d238afb
This commit is contained in:
drh
2023-02-05 20:29:10 +00:00
parent 9ce8643676
commit 072f48e556
6 changed files with 59 additions and 22 deletions
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test/join8.test
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@ -258,7 +258,7 @@ do_execsql_test join8-7020 {
)
SELECT * FROM t0 FULL JOIN t4 ON t0.a=t4.d AND t4.z>0
ORDER BY coalesce(t0.a, t0.y+200, t4.d);
} {/.*BLOOM FILTER ON t2.*BLOOM FILTER ON t3.*BLOOM FILTER ON t4.*/}
} {/.*BLOOM FILTER ON t2.*BLOOM FILTER ON t3.*/}
# 2022-05-12 Difference with PG found (by Dan) while exploring
# https://sqlite.org/forum/forumpost/677a0ab93fcd9ccd