83 lines
2.6 KiB
MySQL
83 lines
2.6 KiB
MySQL
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/* CREATE FUNCTION [IF NOT EXISTS] [db_name.]function_name([arg_type[, arg_type...])
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RETURNS return_type
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name' */
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CREATE FUNCTION function_name(arg_type1, arg_type2)
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RETURNS return_type
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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CREATE FUNCTION db_name.function_name(arg_type1, arg_type2)
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RETURNS return_type
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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CREATE FUNCTION IF NOT EXISTS function_name(arg_type1, arg_type2)
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RETURNS return_type
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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CREATE FUNCTION IF NOT EXISTS db_name.function_name(arg_type1)
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RETURNS return_type
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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CREATE FUNCTION IF NOT EXISTS db_name.function_name(arg_type1, arg_type2, arg_type3)
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RETURNS return_type
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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/* CREATE FUNCTION [IF NOT EXISTS] [db_name.]function_name
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LOCATION 'hdfs_path_to_jar'
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SYMBOL='class_name' */
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CREATE FUNCTION function_name
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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CREATE FUNCTION db_name.function_name
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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CREATE FUNCTION IF NOT EXISTS function_name
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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CREATE FUNCTION IF NOT EXISTS db_name.function_name
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LOCATION 'hdfs_path_to_dot_so'
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SYMBOL='symbol_name';
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/* CREATE [AGGREGATE] FUNCTION [IF NOT EXISTS] [db_name.]function_name([arg_type[, arg_type...])
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RETURNS return_type
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[INTERMEDIATE type_spec]
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LOCATION 'hdfs_path'
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[INIT_FN='function]
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UPDATE_FN='function
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MERGE_FN='function
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[PREPARE_FN='function]
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[CLOSEFN='function]
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[SERIALIZE_FN='function]
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[FINALIZE_FN='function] */
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CREATE AGGREGATE FUNCTION function_name(arg_type1, arg_type2)
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RETURNS return_type
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LOCATION 'hdfs_path'
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UPDATE_FN='update_function'
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MERGE_FN='merge_function';
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CREATE AGGREGATE FUNCTION db_name.function_name(arg_type1, arg_type2)
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RETURNS return_type
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LOCATION 'hdfs_path'
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UPDATE_FN='update_function'
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MERGE_FN='merge_function';
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CREATE AGGREGATE FUNCTION IF NOT EXISTS function_name(arg_type1, arg_type2)
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RETURNS return_type
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LOCATION 'hdfs_path'
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UPDATE_FN='update_function'
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MERGE_FN='merge_function';
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CREATE AGGREGATE FUNCTION function_name(arg_type1, arg_type2)
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RETURNS return_type
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INTERMEDIATE intermediate_type
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LOCATION 'hdfs_path'
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INIT_FN ='init_function'
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UPDATE_FN='update_function'
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MERGE_FN='merge_function'
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PREPARE_FN = 'prepare_fn'
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CLOSEFN = 'closefn'
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SERIALIZE_FN = 'serialize_function'
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FINALIZE_FN = 'finalize_function';
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-- example
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create function my_func location '/user/impala/udfs/udf-examples.jar'
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symbol='org.apache.impala.TestUdf';
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