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Definition
/**
* Get the maximum nesting depth of a SQL query.
*
* Example:
* - "SELECT * FROM t" => 1
* - "SELECT * FROM (SELECT * FROM t)" => 2
* - "SELECT * FROM (SELECT * FROM (SELECT * FROM t))" => 3
*/
sql_query_depth(string $sql) : intUNIFIED DATA PROCESSING FRAMEWORK
composer require flow-php/etl ~0.29.0 
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