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doris/regression-test/data
Kang 4b743061b4 [feature](function) support type template in SQL function (#17344)
A new way just like c++ template is proposed in this PR. The previous functions can be defined much simpler using template function. 

    # map element extract template function
    [['element_at', '%element_extract%'], 'E', ['ARRAY<E>', 'BIGINT'], 'ALWAYS_NULLABLE', ['E']],

    # map element extract template function
    [['element_at', '%element_extract%'], 'V', ['MAP<K, V>', 'K'], 'ALWAYS_NULLABLE', ['K', 'V']],


BTW, the plain type function is not affected and the legacy ARRAY_X MAP_K_V is still supported for compatability.
2023-03-08 10:51:31 +08:00
..
2022-11-30 17:59:13 +08:00