How is filtering translated to table from view ?

Hello,
I am on 11g,
and I have one view that was created by selecitng few columns without filtering from one table that is partitioned.
Table is range partitioned and analyzed.
Later on, when the view is queried, on some of the columns of the view, is applied some where and 'and' conditions.
but the issue is no partitioni pruning is happening and no index is used, table is accessed with full table scan.
So,
is filtering ignored on the main table when is done through view or not ?
If some other info is need, say.

If your are only filtering on columns that are not the partition key, then Oracle has to check every partition. This is true when querying tables directly or within views - the fact that there is a view does not change this. For example if your warehouse SALES table is partitioned on sale_date, and your query is just "where product_type = 'CHEESE'" then it has to visit every partition. If it is something like "where sale_date = date '2011-12-24'" then it can go to a single partition, and again this should be the same if you are querying a view of the SALES table.
If this isn't what you are seeing, maybe the execution plan would help (use tags when posting to preserve text layout).

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