>Estimated cost and row for each call to xBestIndex (sqlite3_index_info is
>filled with the below values for each call)
>
>a) When there is one non-usable constraint
> idxNum = 0 estimatedCost = 1000.00 estimatedRows = 1000
>
>b) when there is one usable constraint
>idxNum = 1
>> I am expecting two usable entries in sqlite3_index_info with
>> aConstraint[i].iColumn = 0 and aConstraint[i].op ==
>> SQLITE_INDEX_CONSTRAINT_EQ for each check
>
> What actually happens is that SQLite transforms the query into
>
>SELECT stamp, to_text(value) FROM store WHERE id IN
corresponds to the first call to xBestIndex. Thus it
does a table scan to find entries (42, 24)
Am i missing something here ?
-venkat murty
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The visibility of table created in with clause is only in the SET part.
The following is a valid sql statement in sqlite3.
with ds as (select id, a , b, c from some_table where c = 43)
update temp_table set id = (select ds.id from ds where ds.a = temp_table.a AND
ds.b = temp_table.b),
some_table where c = 42)
update temp_table set id = ds.id, operation = 'UPDATE'
WHERE ds.a = temp_table.a AND ds.b = temp_table.b;
I get the error " no such column: ds.id"
Thanks,
Venkat Murty
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person or entit
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