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[

{

"name": "project",

"function": "Project",

"args": [

{

"name": "*args",

"type": "str"

}

],

"kwargs": [

{

"name": "groups",

"type": "str",

"default": "\"\""

}

],

"docs": "Project the relation object by the projection in project_expr",

"return": "DuckDBPyRelation"

},

{

"name": "distinct",

"function": "Distinct",

"docs": "Retrieve distinct rows from this relation object",

"return": "DuckDBPyRelation"

},

{

"name": "write_csv",

"function": "ToCSV",

"args": [

{

"name": "filename",

"type": "str"

}

],

"kwargs": [

{

"name": "sep",

"type": "Optional[str]",

"default": "None"

},

{

"name": "na_rep",

"type": "Optional[str]",

"default": "None"

},

{

"name": "header",

"type": "Optional[bool]",

"default": "None"

},

{

"name": "quotechar",

"type": "Optional[str]",

"default": "None"

},

{

"name": "escapechar",

"type": "Optional[str]",

"default": "None"

},

{

"name": "date_format",

"type": "Optional[str]",

"default": "None"

},

{

"name": "timestamp_format",

"type": "Optional[str]",

"default": "None"

},

{

"name": "quoting",

"type": "Optional[str | int]",

"default": "None"

},

{

"name": "encoding",

"type": "Optional[str]",

"default": "None"

},

{

"name": "compression",

"type": "Optional[str]",

"default": "None"

},

{

"name": "overwrite",

"type": "Optional[bool]",

"default": "None"

},

{

"name": "per_thread_output",

"type": "Optional[bool]",

"default": "None"

},

{

"name": "use_tmp_file",

"type": "Optional[bool]",

"default": "None"

},

{

"name": "partition_by",

"type": "Optional[List[str]]",

"default": "None"

}, {

"name": "write_partition_columns",

"type": "Optional[bool]",

"default": "None"

}

],

"docs": "Write the relation object to a CSV file in 'file_name'",

"return": "None"

},

{

"name": "aggregate",

"function": "Aggregate",

"args": [

{

"name": "aggr_expr",

"type": "str | List[Expression]"

},

{

"name": "group_expr",

"type" : "str",

"default": "\"\""

}

],

"docs": "Compute the aggregate aggr_expr by the optional groups group_expr on the relation",

"return": "DuckDBPyRelation"

},

{

"name": "alias",

"function": "SetAlias",

"args": [

{

"name": "alias",

"type": "str"

}

],

"docs": "Rename the relation object to new alias",

"return": "DuckDBPyRelation"

},

{

"name": "filter",

"function": "Filter",

"args": [

{

"name": "filter_expr",

"type": "str"

}

],

"docs": "Filter the relation object by the filter in filter_expr",

"return": "DuckDBPyRelation"

},

{

"name": "limit",

"function": "Limit",

"args": [

{

"name": "n",

"type": "int"

},

{

"name": "offset",

"type": "int",

"default": "0"

}

],

"docs": "Only retrieve the first n rows from this relation object, starting at offset",

"return": "DuckDBPyRelation"

},

{

"name": "order",

"function": "Order",

"args": [

{

"name": "order_expr",

"type": "str"

}

],

"docs": "Reorder the relation object by order_expr",

"return": "DuckDBPyRelation"

},

{

"name": "query_df",

"function": "Query",

"args": [

{

"name": "virtual_table_name",

"type": "str"

},

{

"name": "sql_query",

"type": "str"

}

],

"docs": "Run the given SQL query in sql_query on the view named virtual_table_name that refers to the relation object",

"return": "DuckDBPyRelation"

},

{

"name": "description",

"function": "GetDescription",

"docs": "Get result set attributes, mainly column names",

"return": "Optional[List[Any]]"

},

{

"name": "rowcount",

"function": "GetRowcount",

"docs": "Get result set row count",

"return": "int"

}

]