[jira] [Resolved] (AIRFLOW-1874) Support standard SQL in Check, ValueCheck and IntervalCheck BigQuery operators

["Kaxil Naik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AIRFLOW-1874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kaxil Naik resolved AIRFLOW-1874.
---------------------------------
    Resolution: Fixed

Resolved by https://github.com/apache/incubator-airflow/pull/3717

> Support standard SQL in Check, ValueCheck and IntervalCheck BigQuery operators
> ------------------------------------------------------------------------------
>
>                 Key: AIRFLOW-1874
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1874
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: contrib, gcp, operators
>            Reporter: Guillermo Rodríguez Cano
>            Assignee: Iuliia Volkova
>            Priority: Major
>             Fix For: 2.0.0
>
>
> BigQueryCheckOperator, BigQueryValueCheckOperator and BigQueryIntervalCheckOperator do not support disabling use of default legacy SQL in BigQuery.
> This is a major blocker to support correct migration to standard SQL when queries are complicated. For example, a query that can be queried in legacy SQL may be blocked from any subsequent view done in standard SQL that this view uses as the queries are bound to either standard or legacy SQL but not a mix.
> These operators inherit from base ones of the same name (without the BigQuery prefix) from Airflow which may make the process more complicated as the flag to use standard SQL should be enabled because the underlying BigQueryHook has the corresponding parameter, use_legacy_sql, set to True, when running a query. But it is not possible to pass parameters all the way to it via the aforementioned operators.
> The workaround of including #standardSQL and a new line before the query doesn't work either as there is mismatch. BigQuery reports the following in fact: "Query text specifies use_legacy_sql:false, while API options specify:true"
> A workaround for queries on views using standard SQL is to persist the result of the query in a temporary table, then run the check operation and thereafter delete the temporary table. 



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