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fix nightmare bug where sqlite doesn't let you use out of order sub strings

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This commit is contained in:
Matthew Hodgson 2020-09-09 02:14:06 +01:00
parent faa070bbc2
commit de53608f98
1 changed files with 5 additions and 4 deletions
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9
syncapi/storage/sqlite3/peeks_table.go
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@ -53,8 +53,9 @@ const deletePeeksSQL = "" +
// we care about all the peeks which were created in this range, deleted in this range,
// or were created before this range but haven't been deleted yet.
// BEWARE: sqlite chokes on out of order substitution strings.
const selectPeeksInRangeSQL = "" +
"SELECT room_id, deleted, (id > $3 AND id <= $4) AS changed FROM syncapi_peeks WHERE user_id = $1 AND device_id = $2 AND ((id <= $3 AND NOT deleted) OR (id > $3 AND id <= $4))"
"SELECT id, room_id, deleted FROM syncapi_peeks WHERE user_id = $1 AND device_id = $2 AND ((id <= $3 AND NOT deleted=true) OR (id > $3 AND id <= $4))"
const selectPeekingDevicesSQL = "" +
"SELECT room_id, user_id, device_id FROM syncapi_peeks WHERE deleted=false"
@ -148,11 +149,11 @@ func (s *peekStatements) SelectPeeksInRange(
for rows.Next() {
peek := types.Peek{}
var changed bool
if err = rows.Scan(&peek.RoomID, &peek.Deleted, &changed); err != nil {
var id types.StreamPosition
if err = rows.Scan(&id, &peek.RoomID, &peek.Deleted); err != nil {
return
}
peek.New = changed && !peek.Deleted
peek.New = (id > r.Low() && id <= r.High()) && !peek.Deleted
peeks = append(peeks, peek)
}