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Store edit timestamp in database to deduplicate edits. Fixes #86

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This commit is contained in:
Tulir Asokan
2023-05-06 22:10:00 +03:00
parent c26de9c7df
commit 4324b60a2c
5 changed files with 145 additions and 48 deletions
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25
database/upgrades/00-latest-revision.sql
View File

@@ -1,4 +1,4 @@
-- v0 -> v18 (compatible with v15+): Latest revision
-- v0 -> v19: Latest revision
CREATE TABLE guild (
dcid TEXT PRIMARY KEY,
@@ -104,18 +104,18 @@ CREATE TABLE user_portal (
);
CREATE TABLE message (
dcid TEXT,
dc_attachment_id TEXT,
dc_edit_index INTEGER,
dc_chan_id TEXT,
dc_chan_receiver TEXT,
dc_sender TEXT NOT NULL,
timestamp BIGINT NOT NULL,
dc_thread_id TEXT NOT NULL,
dcid TEXT,
dc_attachment_id TEXT,
dc_chan_id TEXT,
dc_chan_receiver TEXT,
dc_sender TEXT NOT NULL,
timestamp BIGINT NOT NULL,
dc_edit_timestamp BIGINT NOT NULL,
dc_thread_id TEXT NOT NULL,
mxid TEXT NOT NULL UNIQUE,
PRIMARY KEY (dcid, dc_attachment_id, dc_edit_index, dc_chan_id, dc_chan_receiver),
PRIMARY KEY (dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver),
CONSTRAINT message_portal_fkey FOREIGN KEY (dc_chan_id, dc_chan_receiver) REFERENCES portal (dcid, receiver) ON DELETE CASCADE
);
@@ -127,13 +127,12 @@ CREATE TABLE reaction (
dc_emoji_name TEXT,
dc_thread_id TEXT NOT NULL,
dc_first_attachment_id TEXT NOT NULL,
_dc_first_edit_index INTEGER NOT NULL DEFAULT 0,
dc_first_attachment_id TEXT NOT NULL,
mxid TEXT NOT NULL UNIQUE,
PRIMARY KEY (dc_chan_id, dc_chan_receiver, dc_msg_id, dc_sender, dc_emoji_name),
CONSTRAINT reaction_message_fkey FOREIGN KEY (dc_msg_id, dc_first_attachment_id, _dc_first_edit_index, dc_chan_id, dc_chan_receiver) REFERENCES message (dcid, dc_attachment_id, dc_edit_index, dc_chan_id, dc_chan_receiver) ON DELETE CASCADE
CONSTRAINT reaction_message_fkey FOREIGN KEY (dc_msg_id, dc_first_attachment_id, dc_chan_id, dc_chan_receiver) REFERENCES message (dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver) ON DELETE CASCADE
);
CREATE TABLE role (

15
database/upgrades/19-message-edit-ts.postgres.sql Normal file
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@@ -0,0 +1,15 @@
-- v19: Replace dc_edit_index with dc_edit_timestamp
-- transaction: off
BEGIN;
ALTER TABLE reaction DROP CONSTRAINT reaction_message_fkey;
ALTER TABLE message DROP CONSTRAINT message_pkey;
ALTER TABLE message DROP COLUMN dc_edit_index;
ALTER TABLE reaction DROP COLUMN _dc_first_edit_index;
ALTER TABLE message ADD PRIMARY KEY (dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver);
ALTER TABLE reaction ADD CONSTRAINT reaction_message_fkey FOREIGN KEY (dc_msg_id, dc_first_attachment_id, dc_chan_id, dc_chan_receiver) REFERENCES message (dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver) ON DELETE CASCADE;
ALTER TABLE message ADD COLUMN dc_edit_timestamp BIGINT NOT NULL DEFAULT 0;
ALTER TABLE message ALTER COLUMN dc_edit_timestamp DROP DEFAULT;
COMMIT;

48
database/upgrades/19-message-edit-ts.sqlite.sql Normal file
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@@ -0,0 +1,48 @@
-- v19: Replace dc_edit_index with dc_edit_timestamp
-- transaction: off
PRAGMA foreign_keys = OFF;
BEGIN;
CREATE TABLE message_new (
dcid TEXT,
dc_attachment_id TEXT,
dc_chan_id TEXT,
dc_chan_receiver TEXT,
dc_sender TEXT NOT NULL,
timestamp BIGINT NOT NULL,
dc_edit_timestamp BIGINT NOT NULL,
dc_thread_id TEXT NOT NULL,
mxid TEXT NOT NULL UNIQUE,
PRIMARY KEY (dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver),
CONSTRAINT message_portal_fkey FOREIGN KEY (dc_chan_id, dc_chan_receiver) REFERENCES portal (dcid, receiver) ON DELETE CASCADE
);
INSERT INTO message_new (dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver, dc_sender, timestamp, dc_edit_timestamp, dc_thread_id, mxid)
SELECT dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver, dc_sender, timestamp, 0, dc_thread_id, mxid FROM message;
DROP TABLE message;
ALTER TABLE message_new RENAME TO message;
CREATE TABLE reaction_new (
dc_chan_id TEXT,
dc_chan_receiver TEXT,
dc_msg_id TEXT,
dc_sender TEXT,
dc_emoji_name TEXT,
dc_thread_id TEXT NOT NULL,
dc_first_attachment_id TEXT NOT NULL,
mxid TEXT NOT NULL UNIQUE,
PRIMARY KEY (dc_chan_id, dc_chan_receiver, dc_msg_id, dc_sender, dc_emoji_name),
CONSTRAINT reaction_message_fkey FOREIGN KEY (dc_msg_id, dc_first_attachment_id, dc_chan_id, dc_chan_receiver) REFERENCES message (dcid, dc_attachment_id, dc_chan_id, dc_chan_receiver) ON DELETE CASCADE
);
INSERT INTO reaction_new (dc_chan_id, dc_chan_receiver, dc_msg_id, dc_sender, dc_emoji_name, dc_thread_id, dc_first_attachment_id, mxid)
SELECT dc_chan_id, dc_chan_receiver, dc_msg_id, dc_sender, dc_emoji_name, dc_thread_id, dc_first_attachment_id, mxid FROM reaction;
DROP TABLE reaction;
ALTER TABLE reaction_new RENAME TO reaction;
PRAGMA foreign_key_check;
COMMIT;
PRAGMA foreign_keys = ON;