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PostgreSQLでbytea型のバイト数をカウントする

Posted at

この記事は

タイトル通りです。

自己紹介

Java(Spring Boot)のWebアプリ開発を主にやってます。

書き方

  • octet_length関数をつかいます。
  • テーブルhoge_tblのカラムdata(bytea型)のサイズを知りたいときは以下のようにします。
select octet_length(data) from hoge_tbl;
  • カラムdataの全レコードのサイズ合計はsumでくるめばよいです。
select sum(octet_length(data)) from hoge_tbl;

さいごに

以上です!

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