docs - fix some references in gp_distribution_policy
<codeph>distkey</codeph>
</entry>
<entry colname="col2">int2vector</entry>
- <entry colname="col3">pg_attribute.distkey</entry>
+ <entry colname="col3">pg_attribute.attnum</entry>
<entry colname="col4">The column number(s) of the distribution column(s).</entry>
</row>
<row>
<codeph>distclass</codeph>
</entry>
<entry colname="col2">oidvector</entry>
- <entry colname="col3">pg_attribute.distclass</entry>
+ <entry colname="col3">pg_opclass.oid</entry>
<entry colname="col4">The operator class identifier(s) of the distribution
column(s).</entry>
</row>
