NettetStarting in Tableau 10.1, the Google BigQuery connector has been upgraded to support standard SQL, and also still supports legacy SQL. Standard SQL enables users of the BigQuery connector to use level of detail expressions, get faster metadata validation, and select a billing project with the connection. NettetThe good news is that if you are using BigQuery’s updated SQL syntax (and thus not Legacy SQL), you don’t need to bother with the FLATTEN function at all: BigQuery returns results that retain their nested and REPEATED associations automatically. For example, this query: SELECT * FROM `primary.persons` Returns nested data like so:

Google BigQuery - Tableau

NettetLegacy SQL is a non-standard SQL only used by BigQuery. Standard SQL is compliant with the SQL 2011. Google recommends using Standard SQL and looking at the … NettetLegacy SQL Functions and Operators. This document details legacy SQL functions and operators. The preferred query syntax for BigQuery is GoogleSQL. For information on … in-tech ct

Introduction to SQL in BigQuery Google Cloud

Nettet22. mar. 2024 · It is set each time you run a query and the default query language is Legacy SQL. Standard SQL has been the preferred query language since BigQuery … Nettet23. apr. 2024 · quick and formal fix for your query in Standard SQL is something like to replace below (select l.value from unnest (labels) as l) with (select string_agg (l.value) from unnest (labels) as l) But it is still not exactly the same as what initial version of your Legacy SQL version of query is doing Share Improve this answer Follow NettetThis is an extension built on top of DISTINCT of standard SQL and it returns the first row for each set of rows that match the specified expression. Example with DISTINCT ON clause in SQL — Source: Author Note however that when using DISTINCT ON it makes sense to also use the ORDER BY clause. intech credit union online banking