Editing WoW:API COMBAT LOG EVENT (section)

=== Base Parameters ===
{| class="darktable"
!1st Param!!2nd Param!!3rd Param!!4th Param!!5th Param!!6th Param!!7th Param!!8th Param!!9th Param!
|-
|unknown||sourceGUID||sourceName||[[unitFlag|sourceFlags]]||sourceFlags2||destGUID||destName||[[unitFlag|destFlags]]||destFlags2
|}

<s>The timestamp parameter has almost the same format as the return value of the [[API time|time()]] function. You can use it as the second parameter to [[API date|date()]]. The only difference is that time() returns an integer (the unit is seconds), while the timestamp parameter has three decimal places (milliseconds). That means (timestamp-floor(timestamp))*1000 is the number of milliseconds of the timestamp.</s>

The parameters sourceFlags2 and destFlags2 appeared in patch 4.2.

More information on GUIDs (including format, how to tell a player from an NPC, pets, mob IDs, and more) can be found on the [[API UnitGUID]] page.