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When the affinity of a table column is INT or REAL, make the affinity of

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corresponding index columns NUMERIC.  This increases the precision of
index lookups for large numbers so that it matches the precision of
ordinary comparison operators.  Ticket [40812aea1fde9594]

FossilOrigin-Name: e0d909c740b774d8a46731696e33342be83206cc4a95d07f42fdb3d8cc2d7a8e
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drh
2019-08-30 23:56:34 +00:00
parent a7ce167e5b
commit 7314495ff8
5 changed files with 22 additions and 9 deletions
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src/insert.c
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@@ -99,6 +99,7 @@ const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){
aff = sqlite3ExprAffinity(pIdx->aColExpr->a[n].pExpr);
}
if( aff<SQLITE_AFF_BLOB ) aff = SQLITE_AFF_BLOB;
if( aff>SQLITE_AFF_NUMERIC) aff = SQLITE_AFF_NUMERIC;
pIdx->zColAff[n] = aff;
}
pIdx->zColAff[n] = 0;