Re: How get column-wise table info from an arbitrary query?

I really dislike ambiguous column names across tables in a database. Use the
convention [tablename]_id for each id so every column name is self
describing. That way you can:

select * from providers inner join provider_types using(provider_type_id);

No need for table aliases, column aliases and no ambiguity.

Kenneth Tilton-2 wrote
> Is there any way on an arbitrary query to determine column names qualified
> by table aliases?

You could use a query like this to get a list of fully qualified column
names:

SELECT pg_tables.tablename||'.'||columns.column_name as columnname
FROM pg_tables,information_schema.columns columns
WHERE pg_tables.tablename=columns.table_name AND
pg_tables.schemaname='public'
ORDER by pg_tables.tablename;

you can amend that query to only look for columns of certain types, tie to
primary keys of tables or indexes. PostgreSQL is really rather helpful in
that regard.

--
View this message in context: http://postgresql.1045698.n5.nabble.com/How-get-column-wise-table-info-from-an-arbitrary-query-tp5735090p5765601.html
Sent from the PostgreSQL - general mailing list archive at Nabble.com.