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Optimize hot queries

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`getLastConversationX()` is called from debounced function, but
depending on how fast the fetch from the server is the actual
invocations could happen for every other message. Prepare and optimize
queries to save time.
This commit is contained in:
Fedor Indutny 2021-04-08 12:16:10 -07:00 committed by Josh Perez
parent f7cc23e034
commit af9e038add
1 changed files with 16 additions and 18 deletions
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34
ts/sql/Server.ts
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@ -2966,10 +2966,10 @@ async function getLastConversationActivity({
ourConversationId: string;
}): Promise<MessageType | undefined> {
const db = getInstance();
const row = db
.prepare<Query>(
`
SELECT * FROM messages
const row = prepare(
db,
`
SELECT json FROM messages
WHERE
conversationId = $conversationId AND
(type IS NULL
@ -2997,11 +2997,10 @@ async function getLastConversationActivity({
ORDER BY received_at DESC, sent_at DESC
LIMIT 1;
`
)
.get({
conversationId,
ourConversationId,
});
).get({
conversationId,
ourConversationId,
});
if (!row) {
return undefined;
@ -3017,10 +3016,10 @@ async function getLastConversationPreview({
ourConversationId: string;
}): Promise<MessageType | undefined> {
const db = getInstance();
const row = db
.prepare<Query>(
`
SELECT * FROM messages
const row = prepare(
db,
`
SELECT json FROM messages
WHERE
conversationId = $conversationId AND
(
@ -3043,11 +3042,10 @@ async function getLastConversationPreview({
ORDER BY received_at DESC, sent_at DESC
LIMIT 1;
`
)
.get({
conversationId,
ourConversationId,
});
).get({
conversationId,
ourConversationId,
});
if (!row) {
return undefined;