Trait mz_persist_types::stats::DynStats

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pub trait DynStats:
    Debug
    + Send
    + Sync
    + 'static {
    // Required methods
    fn debug_json(&self) -> Value;
    fn into_columnar_stats(self) -> ColumnarStats;

    // Provided method
    fn type_name(&self) -> &'static str { ... }
}
Expand description

Type that can be used to represent some ColumnStats.

This is a separate trait than ColumnStats because its implementations generally don’t care about what kind of stats they contain, whereas ColumnStats is generic over the inner type of statistics.

Required Methods§

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fn debug_json(&self) -> Value

Formats these statistics for use in INSPECT SHARD and debugging.

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fn into_columnar_stats(self) -> ColumnarStats

Return self as ColumnarStats.

Provided Methods§

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fn type_name(&self) -> &'static str

Returns the name of the erased type for use in error messages.

Implementors§