In general, compression works best on tables that include a reasonable number of character string columns and where the data is read far more often than it is written.

通常情况下，在那些有合理数量的字符串列的表上或者是读操作远多于写操作的表上，压缩表都可以很好地工作。

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General Compression, a Massachusetts-based company also backed by the DOE, has developed an isothermal CAES system focused on providing support to wind farms.

ECONOMIST: Energy storage