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59663e4207
heap_page_prune_and_freeze() and many of its helpers use the heap buffer, block number, and page. Other helpers took the heap page and didn't use it. Initializing these values once during prune_freeze_setup() simplifies the helpers' interfaces and avoids any repeated calls to BufferGetBlockNumber() and BufferGetPage(). While updating PruneState, also reorganize its fields to make the layout and member documentation more consistent. Author: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/BD8B69E7-26D8-4706-9164-597C6AE57812%40gmail.com