Add a memory bound FileStatisticsCache for the Listing Table #20047
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Which issue does this PR close?
This change introduces a default FileStatisticsCache implementation for the ListingTable with a size limit, implementing the following steps following #19052 (comment) :
Added heap size estimation for file statistics and the relevant data types used in caching (This is temporary until Add heap memory estimation for statistics #19599 and Add a crate for HeapSize trait arrow-rs#9138 are resolved)
Redesigned DefaultFileStatisticsCache to use a LruQueue to make it memory-bound following Adds memory-bound DefaultListFilesCache #18855
Introduced a size limit and use it together with the heap_size to limit the memory usage of the cache
Moved FileStatisticsCache creation into CacheManager, making it session-scoped and shared across statements and listing tables.
Disabled caching in some of the SQL-logic tests where the change altered the output result.
Closes Add a default
FileStatisticsCacheimplementation for theListingTable#19217Closes Add limit to
DefaultFileStatisticsCache#19052Rationale for this change
See above.
What changes are included in this PR?
See above.
Are these changes tested?
Yes.
Are there any user-facing changes?
A new runtime setting
datafusion.runtime.file_statistics.cache_limit