Skip to content

Reduce INFORMATION_SCHEMA calls in BigQuery get_tables_by_pattern_sql #1084

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
emilmar wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Reduce INFORMATION_SCHEMA calls in BigQuery get_tables_by_pattern_sql #1084

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 19 additions & 0 deletions macros/sql/get_tables_by_pattern_sql.sql
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,25 @@

{% macro bigquery__get_tables_by_pattern_sql(schema_pattern, table_pattern, exclude='', database=target.database) %}

{# When `target.location` is set, the region-qualified INFORMATION_SCHEMA.TABLES
exposes `table_schema` directly. That collapses a SCHEMATA lookup plus a
per-dataset UNION ALL into one query. Falls back to the original
SCHEMATA + iterate path when no location is configured. #}
{% if '%' in schema_pattern and target.location %}
{% set sql %}
select distinct
table_schema,
table_name,
{{ dbt_utils.get_table_types_sql() }}
from {{ adapter.quote(database) }}.`region-{{ target.location | lower }}`.INFORMATION_SCHEMA.TABLES
where lower(table_schema) like lower('{{ schema_pattern }}')
and lower(table_name) like lower('{{ table_pattern }}')
and lower(table_name) not like lower('{{ exclude }}')
{% endset %}

{{ return(sql) }}
{% endif %}

{% if '%' in schema_pattern %}
{% set schemata=dbt_utils._bigquery__get_matching_schemata(schema_pattern, database) %}
{% else %}
Expand Down
Loading