By default, when you
add a data source (a table or subquery) to the workspace, the columns
from the data source are not automatically added as output columns
for the query.
You need to add the
columns to the query that you want to use as input. Once the columns
are added, you can specify column expressions, aggregations, and use
the pivot by feature.
Note: As an exception, the auto-aggregate
feature requires that you set the default aggregations for the table
before you add columns from the table.
When a data source
is dropped on the workspace, the column types are represented by the
following icons:
Icons for Data Types
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This icon represents
numeric data.
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This icon represents
character data.
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