How does Looker check for dependencies between PDTs?

Knowledge Drop

Last tested: Apr 28, 2020

Looker does this by parsing derived table sql, sql_step, etc, looking for the ${view.SQL_TABLE_NAME} as well as required derived tables in the query of each NDTs to collect dependencies and build a directed acrylic graph.

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Last update:
‎07-07-2021 01:14 PM
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