postgresql datatype

table:common data types in postgresql
character string char(length)  blank-padded string, fixed storage length
  varchar(length)  variable storage length
number integer  integer, +/-2 billion range
  float  floating point number, 15-digit precision
  numeric (precision, decimal) number with user-defined precision and decimal
date/time date  date
  time  time
  timestamp  date and time

if put this in the table header, it will be escpased by jekyll. very strange

<td align="center" colspan=1>category</td>
<td align="center" colspan=1>type</td>
<td align="center" colspan=1>description</td>