There are two existing projects used to achieve similar goals:
https://github.com/ExpansiveWorlds/instrumentedsql
https://github.com/gchaincl/sqlhooks
native support could probably improve things a little, but this is a very
reasonable approach.
On Mon, 10 Sep 2018 at 08:59 Conrad Wood <c...@conradwood.net> wrote:
> On Mon, 2018-09-10 at 09:44 +0200, Jan Mercl wrote:
> >
> > On Mon, Sep 10, 2018 at 8:16 AM Conrad Wood <c...@conradwood.net>
> > wrote:
> >
> > > Wdyt? Is that a patch that would be acceptable and generally
> > useful?
> >
> > It could be tried and evaluated first as an external package.
> >
> > --
> > -j
>
> Not sure I understand. The patch would have to be to sql.DB, wouldn't
> it?
>
> I currently open the DB Connection like so:
>
> db, err = sql.Open("postgres", dbinfo)
>
> (db is *sql.DB)
>
> This is current definition of:
>
> func Open(driverName, dataSourceName string) (*DB, error)
>
> There's no way atm to pass in an interceptor.
>
> I am thinking of adding to sql.go:
>
> 1) type SQLInterceptor func(QueryResult)
>
> 2) to "type DB struct": interceptor SQLInterceptor
>
> 3) func (d *DB) SetInterceptor(SQLInterceptor)
>
> 4) modify the query/exec functions to call the interceptor, if it is
> set and if so, call it after the query returns. If no interceptor is
> set, it'll continue as currenty.
>
> How would I test it with an external package? Do you mean copying the
> sql package, modifying that and running that instead?
>
>
>
>
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