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Reencryption status requires an additional 8 bytes on the meta page of each partition.
Index partition uses PageMetaIO to read/write meta information (page type T_META).
Each other partition uses PagePartitionMetaIO to read/write meta information (page type T_PART_META).

Partition meta starts just after the end of the page meta.

To store an additional 8 bytes partition meta shifted by 8 bytes.

We storing additional 8 bytes at the end of each T_META and T_PART_META memory pages.

To support backward compatibility and keep code clean we converting each T_META page into a new type T_INDEX_META and processing it using new PageIndexMetaIO which extends PaeMetaIO.

// TBD image draw.io DiagrambordertruediagramNamepagemeta_newsimpleViewerfalsewidthlinksautotbstyletoplboxtruediagramWidth531revision2

WAL delta records have also been modified to store re-encryption status.

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