These STAGE 3 predicates, especially those that reject a majority of the rows, are usually the result of old VSAM logic that did not utilize a WHERE clause.
这些STAGE3谓词，特别是拒绝大部分行的那些，通常是不使用WHERE 子句的旧有VSAM逻辑的结果。
These STAGE 3 predicates, especially those that reject a majority of the rows, are usually the result of old VSAM logic that did not utilize a WHERE clause.
这些STAGE3谓词，特别是拒绝大部分行的那些，通常是不使用WHERE 子句的旧有VSAM逻辑的结果。
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