Author: Rucha Deodhar
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Make JSON DEPTH unlimited – new feature in MariaDB 12.1
At some point, nearly every developer encounters a common challenge: working with deeply nested JSON only to run into an arbitrary depth limit imposed by the database. In our case, that hard cap was set at 32 levels — sufficient for many scenarios but too restrictive for more complex or dynamic data structures. To address this, we decided to remove the limitation entirely.
The database now supports JSON documents and JSON paths with virtually unlimited nesting! This change unlocks the […]
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10.9 preview feature: JSON path expression and JSON_OVERLAPS()
The MariaDB 10.9 preview releases introduce a MySQL compatibility syntax extension, range notation. The ‘last’ keyword was added in JSON path expression, as requested in MDEV-22224 and MDEV-27911. Additionally, negative indexes are now also supported. Range notation, implemented using the ‘to’ keyword, and the ‘last’ keyword, is basically an array element selector.
Syntax:
Range notation:[M to N] selects a range of elements starting from index M to N.Last keyword:[last-N] / [last] selects the Nth from last element, and last element, […]