Forum Discussion
Import a nested table from Google Big Query
- Anonymous5 years ago
For anybody who's having the same problem, here's how I managed to solve it.
The thing is, when you import nested tables from Google BigQuery, Power BI has trouble identifying the column names because the column names, when unnested, look something like this (in my case): list.element.name
To work around it, what I did was get the data through an ODBC query, in which I manually specified new column names for the columns that needed to be unnested. It looked something like this:
SELECT
id,date,
unnested.element.rule_name AS rule_name,
unnested.element.is_rejected AS is_rejected,
unnested.element.rule_scope AS rule_scope
FROM
`my_data_location`,
UNNEST(list) as unnested
For anybody who's having the same problem, here's how I managed to solve it.
The thing is, when you import nested tables from Google BigQuery, Power BI has trouble identifying the column names because the column names, when unnested, look something like this (in my case): list.element.name
To work around it, what I did was get the data through an ODBC query, in which I manually specified new column names for the columns that needed to be unnested. It looked something like this:
SELECT
id,
date,
unnested.element.rule_name AS rule_name,
unnested.element.is_rejected AS is_rejected,
unnested.element.rule_scope AS rule_scope
FROM
`my_data_location`,
UNNEST(list) as unnested
Can you specify step by step the solution, i am facing the same issue, also my table is too large so have to apply incremental refresh on this also.