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Fix potentially slow migration query.

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This commit is contained in:
Greyson Parrelli
2024-10-04 12:48:46 -04:00
parent b0a1e69109
commit 957f17836a
1 changed files with 14 additions and 12 deletions
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26
app/src/main/java/org/thoughtcrime/securesms/database/AttachmentTable.kt
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@@ -284,6 +284,8 @@ class AttachmentTable(
)
"""
private const val DATA_FILE_INDEX = "attachment_data_index"
@JvmField
val CREATE_INDEXS = arrayOf(
"CREATE INDEX IF NOT EXISTS attachment_message_id_index ON $TABLE_NAME ($MESSAGE_ID);",
@@ -291,7 +293,7 @@ class AttachmentTable(
"CREATE INDEX IF NOT EXISTS attachment_sticker_pack_id_index ON $TABLE_NAME ($STICKER_PACK_ID);",
"CREATE INDEX IF NOT EXISTS attachment_data_hash_start_index ON $TABLE_NAME ($DATA_HASH_START);",
"CREATE INDEX IF NOT EXISTS attachment_data_hash_end_index ON $TABLE_NAME ($DATA_HASH_END);",
"CREATE INDEX IF NOT EXISTS attachment_data_index ON $TABLE_NAME ($DATA_FILE);",
"CREATE INDEX IF NOT EXISTS $DATA_FILE_INDEX ON $TABLE_NAME ($DATA_FILE);",
"CREATE INDEX IF NOT EXISTS attachment_archive_media_id_index ON $TABLE_NAME ($ARCHIVE_MEDIA_ID);",
"CREATE INDEX IF NOT EXISTS attachment_archive_transfer_state ON $TABLE_NAME ($ARCHIVE_TRANSFER_STATE);"
)
@@ -1420,24 +1422,24 @@ class AttachmentTable(
* This is basically all attachments that have data and are finished downloading.
*/
fun getDataFilesWithMultipleValidAttachments(): List<String> {
val targetDataFile = "target_data_file"
return readableDatabase
.select("DISTINCT($DATA_FILE) AS $targetDataFile")
.from(TABLE_NAME)
.select("DISTINCT(a1.$DATA_FILE)")
.from("$TABLE_NAME a1 INDEXED BY $DATA_FILE_INDEX")
.where(
"""
$targetDataFile NOT NULL AND
$TRANSFER_STATE = $TRANSFER_PROGRESS_DONE AND (
SELECT COUNT(*)
FROM $TABLE_NAME
a1.$DATA_FILE NOT NULL AND
a1.$TRANSFER_STATE = $TRANSFER_PROGRESS_DONE AND EXISTS (
SELECT 1
FROM $TABLE_NAME a2 INDEXED BY $DATA_FILE_INDEX
WHERE
$DATA_FILE = $targetDataFile AND
$TRANSFER_STATE = $TRANSFER_PROGRESS_DONE
) > 1
a1.$DATA_FILE = a2.$DATA_FILE AND
a2.$TRANSFER_STATE = $TRANSFER_PROGRESS_DONE AND
a2.$ID != a1.$ID
)
"""
)
.run()
.readToList { it.requireNonNullString(targetDataFile) }
.readToList { it.requireNonNullString(DATA_FILE) }
}
/**