dbstats from Heidemann's web page.
Changes since 1.7 apart from bugfixes:
1.12, 30-Oct-02
- NEW: dbcolmultiscale
- NEW: dbcol has -r option for "relaxed error checking"
- NEW: dbcolneaten has new -e option to strip end-of-line spaces
- NEW: dbrow finally has a -v option to negate the test
- NEW: db_to_html_table: simple conversion to html tables
- NEW: dblib now has a function dblib_text2html() that will
1.11, 2-Nov-01
- NEW: dbcolneaten now supports "field specifiers" that
allow some control over how wide columns should be
- OPTIMIZATION: dbsort now tries hard to be filesystem cache-friendly
1.10, 10-Apr-01
- NEW: dbstats now includes a -S option to optimize work on
pre-sorted data (inspired by code contributed by Haobo Yu)
1.9, 6-Nov-00
- NEW: dbfilesplit, split a single input file into multiple output files.
1.8, 28-Jun-00
- NEW: dbrowuniq now optionally checks for uniqueness only on certain fields
- NEW: dbrowsplituniq makes one pass through a file and splits it into
separate files based on the given fields
- NEW: converter for "crl" format network traces
- NEW: anywhere you use arbitrary code (like dbroweval),
_last_foo now maps to the last row's value for field _foo.
- OPTIMIZATION: comment processing slightly changed so that
dbmultistats now is much faster on files with lots of comments.
From the change log:
1.7, 5-Jan-00
- NEW: dbcolize now detects and rejects lines that contain embedded
copies of the field separator
- NEW: configure tries harder to prevent people from improperly
configuring/installing jdb
- NEW: tcpdump_to_db converter (incomplete)
- NEW: tabdelim_to_db converter: from spreadsheet tab-delimited files to db
- BUG FIX: dbjoin used to produce incorrect output if there
were extra, unmatched values in the 2nd table.
- BUG FIX: the sample commands in the usage strings
now all should explicitly include the source of data
(typically from "cat foo.jdb |").
- DOCUMENTATION BUG FIX: dbcolmovingstats had incorrect sample output.
1.6, 24-May-99
- NEW: dbsort, dbstats, dbmultistats now run in constant memory
(using tmp files if necessary)
- NEW: dbcolmovingstats does moving means over a series of data
- NEW: dbcol has a -v option to get all columns except those listed
- NEW: dbmultistats does quartitles and medians
- NEW: dbstripextraheaders now also cleans up bogus comments
before the fist header
- BUG FIX: dbcolneaten works better with double-space-separated data
