docs: add window function documentation (TUMBLE, HOPPING, SESSION) - #7
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TUMBLE, HOPPING, and SESSION window functions work in streaming SQL GROUP BY clauses but were not documented in the README. Add a "Windowed aggregations" section with syntax examples and a reference table. Discovered and verified via checkpoint stress tests using the Python SDK (v0.12.0) — all three window types produce correct aggregation results with live streaming pipelines. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
TUMBLE,HOPPING, andSESSIONwindow functionsContext
All three window types work correctly in streaming SQL
GROUP BYclauses but were not documented in the README. Discovered and verified through checkpoint stress testing against the Python SDK (v0.12.0):TUMBLE(ts, 5000)— fixed 5-second non-overlapping windowsHOPPING(ts, 5000, 2500)— 5-second windows advancing every 2.5sSESSION(ts, 10000)— dynamic windows closing after 10s inactivity gapAll three produce correct aggregation results on live streaming pipelines with checkpoint operations.
Test plan
🤖 Generated with Claude Code