TBD

[igalklebanov]

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Name	Status	Preview	Comments	Updated (UTC)
kysely	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 29, 2025 2:34am

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kysely_koa_example

npm i https://pkg.pr.new/kysely-org/kysely@1484

commit: d288da3

[igalklebanov]

went for a more centralized approach in the latest commit. haven't implement for streaming yet. hopefully it makes sense there too. we want as little non-database related stuff happening in the drivers.

[igalklebanov]

tests looking good for querying.. need to do streaming tests as well.

[igalklebanov]

Found out processID exists on Client but is undocumented. We can use it if exists instead of querying for it (slow).

Found out cancel exists on Client, but is undocumented. I attempted to use it, but realized there is no easy way to verify we're not canceling the wrong query after connecting.

Found out Client constructor exists on Pool but is undocumented. Also found out options (aka config) exists on Pool, and is exposed in @types/pg too. You can instantiate clients outside the pool's restrictions, with the same configuration. In case this doesn't exist, we now allow passing Client constructor to the dialect just in case it doesn't exist.

If Client exists (through Pool or through dialect config), use it. It doesn't register as a pool connection, so we won't have to wait for an idle connection. If Client doesn't exist, get a pool connection. Not ideal.

Either way, do a cancel query for the PID, if we're still on the original query.

[igalklebanov]

Got MySQL working as well in the following branch - https://github.com/kysely-org/kysely/pull/1505 It required killing the connection. kill query doesn't work as well as PostgreSQL's way, had to use kill connection.

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