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User defined function is invalid:
CANNOT_CONTAIN_COMPLEX_FUNCTIONS
SQL scalar function cannot contain aggregate/window/generate functions: <queryText>
CANNOT_REPLACE_NON_SQL_UDF_WITH_SQL_UDF
Cannot replace the non-SQL function <name> with a SQL function.
CORRELATED_REFERENCES_IN_SQL_UDF_CALLS_IN_DML_COMMANDS_NOT_IMPLEMENTED_YET
This command includes calls to SQL user-defined function <functionName> which contains subquery expressions with correlated outer references; this feature is is not implemented yet
DUPLICATE_CREDENTIAL_NAMES
Found duplicate name(s) in the CREDENTIALS clause of the user-defined function <functionName>.
ENVIRONMENT_INVALID_VERSION
Invalid environment_version value <environment_version>. This Databricks runtime version only supports value 'None'
ENVIRONMENT_MISSING_VERSION
The environment_version field must be set.
FAILED_TO_SERIALIZE_CREDENTIALS
Failed to serialize credentials for user-defined function with credentials: <credentialMappings> and default credential: <defaultCredentialName>.
MULTIPLE_DEFAULT_CREDENTIALS
Multiple default credentials are not allowed in the CREDENTIALS clause of the user-defined function <functionName>.
NOT_A_VALID_DEFAULT_EXPRESSION
The DEFAULT expression of <functionName>.<parameterName> is not supported because it contains a subquery.
NOT_A_VALID_DEFAULT_PARAMETER_POSITION
In routine <functionName> parameter <parameterName> with DEFAULT must not be followed by parameter <nextParameterName> without DEFAULT.
NOT_NULL_ON_FUNCTION_PARAMETERS
Cannot specify NOT NULL on <languageName> function parameters: <input>
RETURN_COLUMN_COUNT_MISMATCH
The number of columns produced by the RETURN clause (num: <outputSize>) does not match the number of column names specified by the RETURNS clause (num: <returnParamSize>) of <name>.
SQL_TABLE_UDF_BODY_MUST_BE_A_QUERY
SQL table function <name> body must be a query.
SQL_TABLE_UDF_MISSING_COLUMN_NAMES
The relation returned by the query in the CREATE FUNCTION statement for <functionName> with RETURNS TABLE clause lacks explicit names for one or more output columns; please rewrite the function body to provide explicit column names or add column names to the RETURNS TABLE clause, and re-run the command.
SQL_UDF_RETURNS_CLAUSE
Must specify an explicit RETURNS clause for user-defined <functionType> function.
UNEXPECTED_ENVIRONMENT_SETTINGS
Unexpected environment settings for <languageName> user defined functions: <invalidKeys> (valid settings are: <validKeys>). Update the ENVIRONMENT clause and try again.