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Index on syncapi_send_to_device table (#2684)

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Introduced index improves select query performance. Example execution time of `selectSendToDeviceMessagesSQL` query dropped from 80 ms to 15 ms. No sytest modifications are required.

### Pull Request Checklist

* [x] I have added added tests for PR _or_ I have justified why this PR doesn't need tests.
* [x] Pull request includes a [sign off](https://github.com/matrix-org/dendrite/blob/main/docs/CONTRIBUTING.md#sign-off)

Signed-off-by: `Piotr Kozimor <p1996k@gmail.com>`
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PiotrKozimor 2022-08-30 15:47:54 +02:00 committed by GitHub
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commit 2be43560ca
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2
syncapi/storage/postgres/send_to_device_table.go
View file

@ -41,6 +41,8 @@ CREATE TABLE IF NOT EXISTS syncapi_send_to_device (
-- The event content JSON.
content TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS syncapi_send_to_device_user_id_device_id_idx ON syncapi_send_to_device(user_id, device_id);
`
const insertSendToDeviceMessageSQL = `

2
syncapi/storage/sqlite3/send_to_device_table.go
View file

@ -39,6 +39,8 @@ CREATE TABLE IF NOT EXISTS syncapi_send_to_device (
-- The event content JSON.
content TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS syncapi_send_to_device_user_id_device_id_idx ON syncapi_send_to_device(user_id, device_id);
`
const insertSendToDeviceMessageSQL = `