40 lines
1.6 KiB
Swift
40 lines
1.6 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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import GRDB
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import SessionUtilitiesKit
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/// This migration adds an index to the interaction table in order to improve the performance of retrieving the number of unread interactions
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enum _007_HomeQueryOptimisationIndexes: Migration {
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static let target: TargetMigrations.Identifier = .messagingKit
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static let identifier: String = "HomeQueryOptimisationIndexes" // stringlint:disable
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static let needsConfigSync: Bool = false
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static let minExpectedRunDuration: TimeInterval = 0.01
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static let fetchedTables: [(TableRecord & FetchableRecord).Type] = []
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static let createdOrAlteredTables: [(TableRecord & FetchableRecord).Type] = []
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static func migrate(_ db: Database) throws {
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try db.create(
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index: "interaction_on_wasRead_and_hasMention_and_threadId", // stringlint:disable
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on: Interaction.databaseTableName,
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columns: [
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Interaction.Columns.wasRead.name,
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Interaction.Columns.hasMention.name,
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Interaction.Columns.threadId.name
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]
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)
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try db.create(
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index: "interaction_on_threadId_and_timestampMs_and_variant", // stringlint:disable
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on: Interaction.databaseTableName,
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columns: [
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Interaction.Columns.threadId.name,
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Interaction.Columns.timestampMs.name,
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Interaction.Columns.variant.name
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]
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)
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Storage.update(progress: 1, for: self, in: target) // In case this is the last migration
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}
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}
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