message FeedMetadata { enum ProcessingInstruction { // Do not use. PROCESS_UNKNOWN = 0; // This Feed message is one shard of a complete feed. Anything previously // supplied by this partner will be deleted; the contents of this feed // represent the entire state of the world. PROCESS_AS_COMPLETE = 1; // Do not use. This value is deprecated. // Feed message is one shard of an incremental feed. // Existing entities will be left untouched except as modified in this feed. PROCESS_AS_INCREMENTAL = 2; } // Instructs us how to process the feed: either as a shard of a complete feed, // or as a shard of an incremental update. (required) ProcessingInstruction processing_instruction = 1; // The current shard and total number of shards for this feed. // // Shard number is assumed to be zero-based. // // There does not need to be any relationship to the file name. // // Shards do not need to be transferred in order, and they may not be // processed in order. (both required) int32 shard_number = 2; int32 total_shards = 3; // An identifier that must be consistent across all shards in a feed. // This value must be globally unique across each feed type. // // This value ensures that complete feeds spanning multiple shards are // processed together correctly. // // Clients only need to set this value when the processing_instruction is set // to PROCESS_AS_COMPLETE and the feed spans multiple shards (defined by // total_shards). // // Feeds that span multiple shards must set this nonce to the same value. // (required if total shards > 1) uint64 nonce = 5; // The timestamp at which this feed shard was generated. // // In Unix time format (seconds since the epoch). (required) int64 generation_timestamp = 4; }
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تاريخ التعديل الأخير: 2024-08-29 (حسب التوقيت العالمي المتفَّق عليه)
[null,null,["تاريخ التعديل الأخير: 2024-08-29 (حسب التوقيت العالمي المتفَّق عليه)"],[[["`nonce` is a unique identifier that must be the same for all shards of a feed to ensure correct processing."],["Feeds are processed as complete, replacing previous data, and can be divided into multiple shards for large datasets."],["`shard_number` and `total_shards` fields are required to manage the processing of multi-shard feeds."],["`generation_timestamp`, in Unix time format, indicates when the feed shard was created."],["For single-shard feeds or incremental updates (deprecated), the `nonce` field is not required."]]],[]]