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Posted to commits@airflow.apache.org by "Guillermo Rodríguez Cano (JIRA)" <ji...@apache.org> on 2017/12/01 12:47:00 UTC

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

Guillermo Rodríguez Cano created AIRFLOW-1874:
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             Summary: 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


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"



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