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74ee3ebf0e
* implemented distinct
* implemented distinct
* uses first cut of a buffer pool, and extendible hashing with thresholded spill to disk
* tests
* cleaned up some stuff around query plan output to make developing tooling easier
* added optimization to call PQL Distinct()
* fixed test
* fix for passing wrong index name in orchestrator
* back out change to DistinctTimestamp
* fix other instance of wrong table name being passed
* use full index name instead of abbreviated one for translation. sigh.
* removed some unused code
Co-authored-by: Matthew Jaffee <jaffee@pilosa.com>
(cherry picked from commit f030d58d95)
21 lines
425 B
Go
21 lines
425 B
Go
package bufferpool
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// DiskManager is responsible for interacting with disk
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type DiskManager interface {
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// reads a page from the disk
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ReadPage(PageID) (*Page, error)
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// writes a page to the disk
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WritePage(*Page) error
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// allocates a page
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AllocatePage() (PageID, error)
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// deallocates a page
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DeallocatePage(PageID) error
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// returns on disk file size
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FileSize() int64
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// closes and does any clean up
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Close()
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}
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