问题
I trying to execute query directly from web console https://bigquery.cloud.google.com
One time query executed and I got result another time I got the error on the same query:
Error: TABLE_QUERY expressions cannot query BigQuery tables.
I also tried with different query option "Use Cached Results", "Interactive" and "Batch" behaviour the same.
Why it could happens?
回答1:
TABLE_QUERY filters are intended to query only metadata. For a brief period of time, it was possible to query table data in your TABLE_QUERY filter; we recently closed this loophole.
We're in the process of adding a whitelist for customers who are negatively impacted by this; the whitelist will allow them to query data within the same dataset in their TABLE_QUERY expression, until they can update their queries.
Note that you can still use __TABLE_SUMMARY__ within the TABLE_QUERY experssion if you want to find the max table id, for example. For example:
SELECT foo
FROM TABLE_QUERY(my_dataset,
'table_id IN (SELECT MAX(table_id)
FROM my_dataset.__TABLES_SUMMARY__
WHERE table_id CONTAINS "my_prefix")')
LIMIT 1
If this doesn't work for you, or you want your project to be whitelisted, please contact tigani@google.com.
来源：https://stackoverflow.com/questions/36640888/weird-error-in-bigquery