> However, suppose you had a partial index that keyed on
>
> "extra > 4"
>
> and your SELECT had the clause
>
> "WHERE extra > ?1"
>
> The parameter might be set to 7. You and I know that this means SQLite
could use the partial index. But SQLite will not compare the 7 and the 4
and decide it can
pated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Charles Leifer
>Sent: Monday, 18 February, 2019 08:23
>To: SQLite mailing list
>Subject: Re: [sqlite] ON CONFLICT with partial indexes
>
>T
On 18 Feb 2019, at 4:41pm, Charles Leifer wrote:
> Simon, I appreciate that, but your comment seems to contradict the example I
> provided, as well as the example Dr. Hipp provided. Am I misunderstanding?
SQLite can compare two comparators. In Dr. Hipp's example the index says
"extra IS NOT
Simon, I appreciate that, but your comment seems to contradict the example
I provided, as well as the example Dr. Hipp provided. Am I misunderstanding?
On Mon, Feb 18, 2019, 9:44 AM Simon Slavin On 18 Feb 2019, at 3:23pm, Charles Leifer wrote:
>
> > At some point before actually executing the
On 18 Feb 2019, at 3:23pm, Charles Leifer wrote:
> At some point before actually executing the query I'm calling
> sqlite3_bind...() to set the value of the parameter placeholder. Presumably
> SQLite would know at that point that a certain index is usable (or in this
> case, that a certain
On Mon, Feb 18, 2019 at 4:38 PM Richard Damon
wrote:
> Remember the query plan is determined when that statement is compiled,
> which is BEFORE you do the binding of the parameters, so the plan can not
> depend on the value of parameters. There is no later attempt to optimize
> once the values
> On Feb 18, 2019, at 10:23 AM, Charles Leifer wrote:
>
> Thanks for the explanation. So does this mean that two identical queries
> can have completely different query plans depending on whether they use a
> parameters vs literal values embedded in the SQL string?
>
Remember the query plan is
Thanks for the explanation. So does this mean that two identical queries
can have completely different query plans depending on whether they use a
parameters vs literal values embedded in the SQL string?
> But in this case with the WHERE clause is incompletely specified, there
is no way for the
On 2/17/19, Charles Leifer wrote:
> I'm having trouble executing an INSERT ... ON CONFLICT with a partial
> index. It works fine in the SQLite shell, but it fails when I express the
> conflict constraint using a parameterized query.
>
> For example:
>
> CREATE TABLE ukvp ("id" integer primary
Olivier, what do you mean "snapshot"? What is a release? How can I find out
about the SQLite "releases" you are talking about?
On Sun, Feb 17, 2019 at 3:23 PM Olivier Mascia wrote:
> > Le 17 févr. 2019 à 22:05, Charles Leifer a écrit :
> >
> > I run against the latest and greatest.
> >
> >
> Le 17 févr. 2019 à 22:05, Charles Leifer a écrit :
>
> I run against the latest and greatest.
>
> Python:
>
> In [1]: import sqlite3
>
> In [2]: sqlite3.sqlite_version
> Out[2]: '3.28.0'
>
>
> Sqlite:
>
> sqlite> select sqlite_version(), sqlite_source_id();
> 3.28.0|2019-02-12 22:58:32
>
I run against the latest and greatest.
Python:
In [1]: import sqlite3
In [2]: sqlite3.sqlite_version
Out[2]: '3.28.0'
Sqlite:
sqlite> select sqlite_version(), sqlite_source_id();
3.28.0|2019-02-12 22:58:32
167b91df77fff1a84791f6ab5f72239b90475475be690a838248119b6dd312f0
On Sun, Feb 17,
On 17 Feb 2019, at 8:51pm, Charles Leifer wrote:
> Is this a bug?
Just to make things easier, which version of SQLite are you using in your
Python SQLite library ? If you don't know, you can find this out using
SELECT sqlite_version();
SELECT sqlite_source_id();
The second may give
I'm having trouble executing an INSERT ... ON CONFLICT with a partial
index. It works fine in the SQLite shell, but it fails when I express the
conflict constraint using a parameterized query.
For example:
CREATE TABLE ukvp ("id" integer primary key, "key" text not null, "value"
int not null,
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