The cache_read and cache_pages_requested connection statistics are now redundant:

• cache_read ("pages read into cache") is fully covered by cache_read_leaf + cache_read_internal.
• cache_pages_requested ("pages requested from the cache") is fully covered by cache_pages_requested_leaf + cache_pages_requested_internal.

Since the leaf and internal breakdowns exist and are tracked separately, the aggregate stats add no information and increase maintenance surface.

Work

• Remove cache_read and cache_pages_requested from dist/stat_data.py.
• Regenerate src/include/stat.h, src/support/stat.c, and the public API stat defines by running python dist/stat.py.
• Remove any references to the two stats from C source, Python tests, and documentation.