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{
"_yql_row_spec"={
"Type"=["StructType";[
["Key1";["DataType";"Int32"]];
["Key2";["DataType";"String"]];
["Fk1";["OptionalType";["DataType";"String"]]];
["Value";["OptionalType";["DataType";"String"]]]]
];
"SortDirections"=[1;1];
"SortedBy"=["Key1";"Key2"];
"SortedByTypes"=[["DataType";"Int32";];["DataType";"String"]];
"SortMembers"=["Key1";"Key2"];
};
"schema" = <"strict" = %true; "unique_keys" = %false>
[
{
"name" = "Key1";
"sort_order" = "ascending";
"type" = "int64";
"type_v3" = {"type_name" = "optional"; item = "int64"}
};
{
"name" = "Key2";
"sort_order" = "ascending";
"type" = "string";
"type_v3" = {"type_name" = "optional"; item = "string"}
};
{
"name" = "Fk1";
"type" = "string";
"type_v3" = {"type_name" = "optional"; item = "string"}
};
{
"name" = "Value";
"type" = "string";
"type_v3" = {"type_name" = "optional"; item = "string"}
};
];
"extended_stats" = [
{
"column_name" = "Key1";
"data_weight" = 56;
"num_unique_vals" = 11;
};
{
"column_name" = "Key2";
"data_weight" = 66;
"num_unique_vals" = 5;
};
{
"column_name" = "Fk1";
"data_weight" = 70;
"num_unique_vals" = 5;
};
{
"column_name" = "Value";
"data_weight" = 98;
"num_unique_vals" = 6;
}
]
}
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