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       2. File level index: local B+ tree,  efficient blocklet level filteringBlocklet

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Figure 2: File Level Indexing

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Figure 3:  Blocklet Level Indexing

 Blocklet Min-Max Index is used to record the min/max value of all columns in the blocklet.

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Figure 2: File Level Indexing

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Figure 3:  Blocklet Level Indexing

 MinMin-Max Index for all columns aids in quickly locating the row groups(Data Blocks) that contain the data matching search/filter criteria.

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