Note

Ensures complete profile output on timeouts (RETURN policy) by tracking profiling state, draining pending shard replies, and adding FT.CURSOR PROFILE; updates command/iterator APIs and tests.

• Coordinator/Distributed Execution:
  • Add MRCommand.forProfiling flag and new root command C_PROFILE; propagate through command copy and cursor flow.
  • On RESP3 profile replies, detect timeout warnings and mark iterator timed out to trigger CURSOR PROFILE on next dispatch.
  • Extend getCursorCommand to send _FT.CURSOR PROFILE when timed out on profile queries; preserve flags.
  • Add iterator helpers MRIterator_GetChannelSize and MRIterator_GetNumShards.
• Profile Aggregation:
  • In printAggProfile, collect profile info from current and remaining channel replies; drain channel until empty; warn if partial shard profiles.
  • Track AREQ.has_timedout and pass in ProfilePrinterCtx consistently.
• Cursor/Profile Commands:
  • Implement FT.CURSOR PROFILE {index} {cid} to return profile (with empty/dummy results) and free the cursor; errors for missing/non-profile cursors.
  • Add sendChunk_ReplyOnly_EmptyResults to emit profile without results (RESP2/RESP3, cursor/non-cursor).
• Pipeline/Replies:
  • Ensure profile data is preserved when pager stops early; include dummy row for profile replies so they aren’t discarded.
• Tests:
  • Add/adjust tests for cursor profile, coordinator timeout warnings (RESP2/RESP3), and partial-consumed results ensuring shard profiles are returned.

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