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Description
Is your feature request related to a problem or challenge?
Based on the discussion in #11268 (comment), we will support the MAP literal to create a map value. Referring to the DuckDB syntax, we can use syntax like:
SELECT MAP {'key1': 10, 'key2': 20, 'key3': 30};Describe the solution you'd like
After #11361, we now have two functions: map and make_map. We can use UserDefinedSQLPlanner to implement the proposed syntax and rewrite it to the map function. As @jayzhan211 mentioned in #11361 (comment), we can also use ExprPlanner to handle the make_map function. Since make_map is less efficient than the map function, we should retain only the faster map scalar function implementation. For more details, see the previous discussions and benchmark results in #11361.
Describe alternatives you've considered
No response
Additional context
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