initial row piece 每一行或初始行片
This portion of the data block contains information about the actual rows in the block (including addresses for each row piece in the row data area).
这部分的数据块包含了有关实际的行的信息(包括行数据区域每个行片段的地址)。
This portion of the data block contains information about the actual rows in the block (including addresses for each row piece in the row data area).
数据块的这部分包涵了关于数据块中拥有行的表的信息。
Put another way, a row of a table is an atomic unit that is read and written as a single piece.
换句话说，表的一行是作为读写单独一块数据的最小单位。
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