Add guide on reassembling multi-segment messages#407
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Document the generic pattern for reassembling a logical message that a source split across several transport messages: frame each segment, gather the segments of one message with an outer window and an inner group keyed on the id, then concatenate the payloads in order. Cast the segment counter before sorting, and include a delay-based example that shows messages streaming in over more than the window, plus what happens when one message's segments outrun it. Add reciprocal See Also links on window and group, the operators the technique is built on. Assisted-by: Claude Opus 4.8 (1M context) (Claude Code)
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guides/parsing/reassemble-multi-segment-messages(sidebar: Guides → Parsing).parse_grok, gather them with an outerwindowand an innergroupkeyed on the id, thensort+collect+firstto concatenate payloads in order.windowoutermost (notgroup) so state is bounded to the open windows rather than one subpipeline per near-unique id; the note explains why and when to invert.cisco::ise::*operators as a real-world implementation.💬 Review
- Example pipelines verified to run;
⚙️ Code PR: tenzir/library#161window-outer vsgroup-outer equivalence verified by running both on interleaved sample data; output is identical.markdownlintpasses on the changed file.