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dublin_core_types.sql
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dublin_core_types.sql
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# standardSQL
# Count Dublin Core types
CREATE TEMP FUNCTION getDublinCoreTypes(rendered STRING)
RETURNS ARRAY<STRING>
LANGUAGE js AS """
try {
rendered = JSON.parse(rendered);
return rendered.dublin_core.map(dublin_core => dublin_core.name.toLowerCase());
} catch (e) {
return [];
}
""";
WITH
rendered_data AS (
SELECT
_TABLE_SUFFIX AS client,
url,
getDublinCoreTypes(JSON_EXTRACT(JSON_VALUE(JSON_EXTRACT(payload, '$._structured-data')), '$.structured_data.rendered')) AS dublin_core_types
FROM
`httparchive.pages.2022_06_01_*`
),
page_totals AS (
SELECT
_TABLE_SUFFIX AS client,
COUNT(0) AS total_pages
FROM
`httparchive.pages.2022_06_01_*`
GROUP BY
_TABLE_SUFFIX
)
SELECT
client,
dublin_core_type,
COUNT(dublin_core_type) AS count,
SUM(COUNT(dublin_core_type)) OVER (PARTITION BY client) AS freq_dublin_core,
COUNT(dublin_core_type) / SUM(COUNT(dublin_core_type)) OVER (PARTITION BY client) AS pct_dublin_core,
COUNT(DISTINCT url) AS freq_pages,
total_pages,
COUNT(DISTINCT url) / total_pages AS pct_pages
FROM
rendered_data,
UNNEST(dublin_core_types) AS dublin_core_type
JOIN
page_totals
USING (client)
GROUP BY
client,
dublin_core_type,
total_pages
ORDER BY
pct_dublin_core DESC,
client