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Performance improvement for column name lookup.

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FossilOrigin-Name: 1e4b6a93987cdfbf829e2ff35ef417c290625f2894ad11949e301af518f1fb44
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drh
2020-04-06 18:16:31 +00:00
parent 85f2c76cf9
commit d44390c8c5
8 changed files with 37 additions and 15 deletions
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src/select.c
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@@ -2023,6 +2023,7 @@ int sqlite3ColumnsFromExprList(
if( cnt>3 ) sqlite3_randomness(sizeof(cnt), &cnt);
}
pCol->zName = zName;
pCol->hName = sqlite3StrIHash(zName);
sqlite3ColumnPropertiesFromName(0, pCol);
if( zName && sqlite3HashInsert(&ht, zName, pCol)==pCol ){
sqlite3OomFault(db);