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Speed up gallery item queries #1211

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Speed up gallery item queries #1211

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9 changes: 7 additions & 2 deletions MixinServices/MixinServices/Database/User/UserDatabase.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -318,8 +318,7 @@ public final class UserDatabase: Database {
try db.execute(sql: "CREATE UNIQUE INDEX IF NOT EXISTS jobs_index_id ON jobs(job_id)")
try db.execute(sql: "CREATE INDEX IF NOT EXISTS jobs_next_indexs ON jobs(category, priority DESC, orderId ASC)")

try db.execute(sql: "CREATE INDEX IF NOT EXISTS messages_page_indexs ON messages(conversation_id, created_at)")
try db.execute(sql: "CREATE INDEX IF NOT EXISTS index_messages_category ON messages(conversation_id, category)")
try db.execute(sql: "CREATE INDEX IF NOT EXISTS index_messages_category ON messages(conversation_id, created_at, category)")
try db.execute(sql: "CREATE INDEX IF NOT EXISTS index_messages_quote ON messages(conversation_id, quote_message_id)")
try db.execute(sql: "CREATE INDEX IF NOT EXISTS index_messages_pick ON messages(conversation_id, status, user_id, created_at)")

Expand Down Expand Up @@ -517,6 +516,12 @@ public final class UserDatabase: Database {
}
}

migrator.registerMigration("index_optimization_3") { (db) in
try db.execute(sql: "DROP INDEX IF EXISTS messages_page_indexs")
try db.execute(sql: "DROP INDEX IF EXISTS index_messages_category")
try db.execute(sql: "CREATE INDEX IF NOT EXISTS index_messages_category ON messages(conversation_id, created_at, category)")
}

return migrator
}

Expand Down