Issue 1:
The following file cannot be read by readtable. It gives an error:

ERROR: max: ordering is not well-defined for arrays

in maximum at reduce.jl:33

in max at deprecated.jl:21

in format_table at /home/vramacha/.julia/DataFrames/src/dataframe.jl:903

in column_summary at /home/vramacha/.julia/DataFrames/src/dataframe.jl:913

in show at /home/vramacha/.julia/DataFrames/src/dataframe.jl:890

in anonymous at no file:930

in with_output_limit at show.jl:907

in showlimited at show.jl:929

in writemime at repl.jl:2

in display at multimedia.jl:111

in display at multimedia.jl:113

in display at multimedia.jl:145

However, if I replace all column names by Col1, Col2 etc, then it is able to read.

SwathId, DieRow, DieCol, SwathDieIndex, SubSwath, Id, Sample, xFrmIndx, DieX, DieY, SetupXErr, SetupYErr, RuntimeXErr, RuntimeScoreX, InXCluster, RuntimeYErr,RuntimeYError-Yshift, RuntimeScoreY, InYCluster,
4, 5, 1, 42, 0, 21652.0000, 0, 6, 454.8694, 22178.3945, -4.5807, 3.0314, -5.0085, 0.9979, Y, 4.8988, 4.1342, 0.9979, Y,
4, 5, 1, 42, 0, 21657.0000, 0, 7, 509.5343, 22178.3945, -4.4835, 3.0702, -5.0276, 0.9973, Y, 4.9479, 4.1832, 0.9973, Y,
4, 5, 1, 42, 0, 21665.0000, 0, 8, 588.8342, 22201.7930, -4.5180, 3.1344, -5.2901, 0.9992, Y, 4.9995, 4.2349, 0.9992, Y,
4, 5, 1, 42, 0, 21666.0000, 0, 9, 648.8291, 22215.1836, -4.2244, 3.1822, -4.9868, 0.9974, Y, 4.9463, 4.1816, 0.9974, Y,
4, 5, 1, 42, 0, 21666.0000, 1, 9, 648.8291, 22215.1836, -4.2244, 3.1822, ---, ---, N, 4.9484, 4.1838, 0.8471, Y,
4, 5, 1, 42, 0, 21663.0000, 0, 324, 21579.2539, 22178.3945, -4.3494, 3.1020, -4.9533, 0.9964, Y, 4.5069, 3.7422, 0.9964, Y,
4, 5, 1, 42, 0, 21660.0000, 0, 325, 21662.5840, 22178.3945, -4.2973, 3.1265, -4.8606, 0.9960, Y, 4.5310, 3.7663, 0.9960, Y,
4, 5, 1, 42, 0, 21661.0000, 0, 326, 21745.9141, 22178.3945, -4.2562, 3.1295, -4.8672, 0.9963, Y, 4.5142, 3.7495, 0.9963, Y,
4, 5, 1, 42, 0, 21658.0000, 0, 327, 21815.5938, 22182.9434, -4.3141, 3.0921, -4.8356, 0.9950, Y, 4.4347, 3.6701, 0.9950, Y,

Issue 2:
I'm getting an error when reading a CSV file:

> df = readtable("somefile.csv")
DataFrame with 4596 rows, 7 columns
Columns:

WARNING: max(x) is deprecated, use maximum(x) instead.
in depwarn at deprecated.jl:29
in max at deprecated.jl:19
in format_table at /home/milan/.julia/DataFrames/src/dataframe.jl:903
in column_summary at /home/milan/.julia/DataFrames/src/dataframe.jl:913
in show at /home/milan/.julia/DataFrames/src/dataframe.jl:890
in anonymous at no file:930
in with_output_limit at show.jl:907
in showlimited at show.jl:929
in writemime at repl.jl:2
in display at multimedia.jl:111
in display at multimedia.jl:113
in display at multimedia.jl:145
Evaluation succeeded, but an error occurred while showing value of type DataFrame:
ERROR: max: ordering is not well-defined for arrays
in maximum at reduce.jl:33
in max at deprecated.jl:21
in format_table at /home/milan/.julia/DataFrames/src/dataframe.jl:903
in column_summary at /home/milan/.julia/DataFrames/src/dataframe.jl:913
in show at /home/milan/.julia/DataFrames/src/dataframe.jl:890
in anonymous at no file:930
in with_output_limit at show.jl:907
in showlimited at show.jl:929
in writemime at repl.jl:2
in display at multimedia.jl:111
in display at multimedia.jl:113
in display at multimedia.jl:145

The first error (not the warning) can be reproduced with these contents:

K1,ROW_LABEL,age6,diplo,csp,local,revenu
c'est tout; l'espace en général,4 ,34-45a,Sup,ajf&dkf,THG,4b20MG

Also, only with the full file, if I try to change the separator to ';' (which is wrong for this file), I get a cryptic error:

> df = readtable("somefile.csv", separator=';')
ERROR: BoundsError()
in findcorruption at /home/milan/.julia/DataFrames/src/io.jl:467
in readtable! at /home/milan/.julia/DataFrames/src/io.jl:525
in readtable at /home/milan/.julia/DataFrames/src/io.jl:595