I am trying to use a column "create_date" from Postgres table 1 to another table with the same column name "create_date" with the same value to be updated in all the columns in Postgres table 2. I don't know who to do this.
Rule 1: Use In-DB for DB operations if you can.
Rule 2: If you have to use input data - turn off AMP.
Can you turn off amp - see if it runs. If it doesn't can you post what you are using for your sql in our output data tool?
I don't use Postgres via on-canvas tools - but my hunch is you should be using the Greenplum setting vs the generic odbc. Can you show a screen grab of a limitied mount of data coming out of the input data tool (ie how many records are there without the output tool - and can you confirm that you have data - and that it matches your criteria?).