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From "Ben Boule (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5870) CQLSH not showing milliseconds in timestamps
Date Fri, 09 Aug 2013 18:16:48 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13735093#comment-13735093
] 

Ben Boule commented on CASSANDRA-5870:
--------------------------------------

--- formatting.py       2013-08-09 13:38:16.608551610 -0400
+++ formatting.py       2013-08-09 13:54:47.544863339 -0400
@@ -156,7 +156,7 @@
 
 def strftime(time_format, seconds):
     local = time.localtime(seconds)
-    formatted = time.strftime(time_format, local)
+    formatted = formatWithMs(time_format, local, seconds)
     if local.tm_isdst != 0:
         offset = -time.altzone
     else:
@@ -171,6 +171,18 @@
     hours, minutes = divmod(abs(offset) / 60, 60)
     return formatted[:-5] + sign + '{0:0=2}{1:0=2}'.format(hours, minutes)
 
+def formatWithMs(time_format,timeval,seconds):
+    if "%S" not in time_format:
+        return time.strftime(time_format,timeval)
+
+    segments = time_format.partition("%S")
+    return time.strftime(segments[0],timeval) + \
+           time.strftime(segments[1],timeval) + "." + getMSeconds(seconds) + \
+           time.strftime(segments[2],timeval)
+
+def getMSeconds(seconds):
+    return "{0:.0f}".format((seconds * 1000) % 1000)
+
 @formatter_for('text')
 def format_value_text(val, encoding, colormap, **_):
     escapedval = val.replace(u'\\', u'\\\\')

                
> CQLSH not showing milliseconds in timestamps
> --------------------------------------------
>
>                 Key: CASSANDRA-5870
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5870
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>         Environment: Linux
>            Reporter: Ben Boule
>            Priority: Minor
>             Fix For: 1.2.5
>
>
> CQLSH does not include the milliseconds portion of the timestamp when outputting query
results.  For example on my system a time might be displayed like this:
> "2013-08-09 10:55:58-0400" for a time stored in cassandra as: 1376060158267
> We've found this extremely annoying when dealing with time series data as it will make
records which occurred at different times appear to occur at the same time.
> I'm submitting a patch, the existing formatting code already has handling of some versions
of python which do not support formatting time zones, I'm not sure which versions of python
can format seconds+milliseconds so I attempted to supply something which will work with any
time_format string and does not depend on the system library.

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