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Do not attempt to limit the number of columns used in a table to a prefix

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if the table will be used to construct an automatic index or bloom filter.
dbsqlfuzz 787d9bd73164c6f0c85469e2e48b2aff19af6938.

FossilOrigin-Name: f8766231d2a77bb8b95726b514736d4c2d20b056f7fe60bdbc98ebf5e5b15ae9
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drh
2022-01-31 15:59:43 +00:00
parent e40f28618c
commit 87fb37efce
4 changed files with 23 additions and 8 deletions
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src/where.c
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@@ -5681,6 +5681,7 @@ WhereInfo *sqlite3WhereBegin(
if( pWInfo->eOnePass==ONEPASS_OFF
&& pTab->nCol<BMS
&& (pTab->tabFlags & (TF_HasGenerated|TF_WithoutRowid))==0
&& (pLoop->wsFlags & (WHERE_AUTO_INDEX|WHERE_BLOOMFILTER))==0
){
/* If we know that only a prefix of the record will be used,
** it is advantageous to reduce the "column count" field in