*"SQLite uses a page cache of recently read and written database pages. This page cache is used not just for the main database file but also for transient indices and tables stored in temporary files. If SQLite needs to use a temporary index or table and the SQLITE_TEMP_STORE compile-time parameter and the temp_store pragma are set to store temporary tables and index on disk, the information is still initially stored in memory in the page cache. The temporary file is not opened and the information is not truly written to disk until the page cache is full. This means that for many common cases where the temporary tables and indices are small (small enough to fit into the page cache) no temporary files are created and no disk I/O occurs. Only when the temporary data becomes too large to fit in RAM does the information spill to disk. Each temporary table and index is given its own page cache which can store a maximum number of database pages determined by the SQLITE_DEFAULT_TEMP_CACHE_SIZE compile-time parameter. (The default value is 500 pages.) The maximum number of database pages in the page cache is the same for every temporary table and index. The value cannot be changed at run-time or on a per-table or per-index basis. Each temporary file gets its own private page cache with its own SQLITE_DEFAULT_TEMP_CACHE_SIZE page limit." *
Can someone tell me, if I create a temporary table does is its 'separate cache' created within the cache_size cache or is it completely separate from that? -- Sent from: http://sqlite.1065341.n5.nabble.com/ _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
