docs(bigquery): add sample to read from query destination table #9964
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This sample addresses internal issue 134774673, in which we recieved
feedback that it's not clear how to paginate through the results of a
query. This sample shows that all completed queries have a destination
table, which can be read from with tabledata.list.
Note: The client library avoids the extra call to
get_table
if queryresults are read directly from the QueryJob, but it's confusing to show
that we're able to get the schema from a private API call to
getQueryResults.