When you create a table (subTable) which enherits from an other table (superTable),
what are the actual relationship between theese tables.
Is there a foreign key in the subTable, or does the subTable just have the same
columns as the superTable plus some extra?
I am askin because I would like to illustrate the tables in a ER-diagram.
Regards Peter.
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
