message: switch md5 to sha256
diff: @@ -146,7 +146,7 @@ const _CREATE_SCHEMA: [&str; 12] = [
  ON UPDATE CASCADE
  )",
  "CREATE INDEX IF NOT EXISTS ix_tags_encrypted_name ON tags_encrypted(name)",
  - "CREATE INDEX IF NOT EXISTS ix_tags_encrypted_value ON tags_encrypted(md5(value))",
  + "CREATE INDEX IF NOT EXISTS ix_tags_encrypted_value ON tags_encrypted(sha256(value))",
  "CREATE INDEX IF NOT EXISTS ix_tags_encrypted_item_id ON tags_encrypted(item_id)",
  "CREATE TABLE IF NOT EXISTS tags_plaintext(
  name BYTEA NOT NULL,
  