It means that there is an invalid attribute reference (i.e. a #n where the attribute is missing from the child operator).
On Sun, Oct 18, 2015 at 11:38 PM, Xiao Li <gatorsm...@gmail.com> wrote: > Hi, all, > > After turning on the trace, I saw a strange exclamation mark in > the intermediate plans. This happened in catalyst analyzer. > > Join Inner, Some((col1#0 = col1#6)) > Project [col1#0,col2#1,col3#2,col2_alias#24,col3#2 AS col3_alias#13] > Project [col1#0,col2#1,col3#2,col2#1 AS col2_alias#24] > LogicalRDD [col1#0,col2#1,col3#2], MapPartitionsRDD[1] at > createDataFrame at SimpleApp.scala:32 > Aggregate [col1#6], [col1#6,count(col1#6) AS count(col1)#5L] > *!Project [col1#6,col2#7,col3#8,col2_alias#24,col3#8 AS col3_alias#4]* > Project [col1#6,col2#7,col3#8,col2#7 AS col2_alias#3] > LogicalRDD [col1#6,col2#7,col3#8], MapPartitionsRDD[1] at > createDataFrame at SimpleApp.scala:32 > > Could anybody give me a hint why there exists a !(exclamation mark) before > the node name (Project)? This ! mark does not disappear in the subsequent > query plan. > > Thank you! > > Xiao Li >
