From: drh <drh@noemail.net>
Date: Thu, 22 Oct 2020 18:50:30 +0000 (+0000)
Subject: Minor tweaks to query planning weights so that when STAT4 is enabled
X-Git-Tag: version-3.34.0~47
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=beb22d086bae43a3e21ee140af3a9c8e369939d9;p=thirdparty%2Fsqlite.git

Minor tweaks to query planning weights so that when STAT4 is enabled
and functioning, a full table scan is more likely to be selected if
that seems like the fastest solution.  Only do this when STAT4 info
is available because an error has a large potential downside.

FossilOrigin-Name: 0e7e113d9f2c929c1f8a85e2cfad8e2e60f0e8770212b5e5320fb2a2c42911f8
---

beb22d086bae43a3e21ee140af3a9c8e369939d9
diff --cc manifest
index 04ee23927b,af44176f84..9f868d856b
--- a/manifest
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@@@ -1,5 -1,5 +1,5 @@@
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- D 2020-10-20T14:40:53.201
 -C Test\scase\supdates.
 -D 2020-10-22T18:16:17.916
++C Minor\stweaks\sto\squery\splanning\sweights\sso\sthat\swhen\sSTAT4\sis\senabled\nand\sfunctioning,\sa\sfull\stable\sscan\sis\smore\slikely\sto\sbe\sselected\sif\nthat\sseems\slike\sthe\sfastest\ssolution.\s\sOnly\sdo\sthis\swhen\sSTAT4\sinfo\nis\savailable\sbecause\san\serror\shas\sa\slarge\spotential\sdownside.
++D 2020-10-22T18:50:30.660
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diff --cc manifest.uuid
index 871e6c40f0,cb9d3e2ade..42810880bd
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