logstash/logstash — pull request #213 by ralphm (2012-09-27 13:51:43+00:00)
Title: Preserve milliseconds for UNIX timestamps in date filter.

My input source has UNIX timestamps with microsecond precision. The current date filter however, first changes the input timestamp to an integer before multiplying by 1000 to get to milliseconds. This change preserves at least the millisecond precision by first converting to float, then multiply and finally convert to integer.