0.0.8: - add sample_ratio parameter 0.0.7: - fix counters for 32 bits builds - handle different collations for constants sampling - add a new "occurences" field, displaying the number of qual call - keep a unnormalized query string for each queryid - fix a bug with operator id retrieval - handles casts - add stats collection for nestedloops - handle FuncExpr and MinMaxExpr - improve performances for queries having multiple quals 0.0.6: - order quals and constants by their text positions. - fix bug with Index-Only Scans, which where not correctly supported - make pg_config configurable from the make invocation - ensure pg_qualstats is in shared_preload_libraries 0.0.5: - fix bug with = ANY(NULL) expressions 0.0.4: - add inline documentation in the sql script - fix a bug with 32bits builds (thanks to Alain Delorme for reporting it)