Tag Archives: add

Amazon Redshift 壓縮率的改善

Amazon Redshift 對壓縮率的改善:「Data Compression Improvements in Amazon Redshift Bring Compression Ratios Up to 4x」。 首先是引入了 Zstandard: First, we added support for the Zstandard compression algorithm, which offers a good balance between a high compression ratio and speed in build 1.0.1172. … Continue reading

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Ubuntu 上找不到 apt-add-repository 的解法

剛剛在弄 Linode 上的 Ubuntu 時要裝 PPA,發現沒有 apt-add-repository 可以用,找了一下資料發現這不是系統一定會安裝的軟體,所以要自己手動安裝: apt-get install python-software-properties 裝完後就可以繼續裝 PPA 了。

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