feat(#4975): exact ReadProjectionProgressAsync(ShardName) override + JasperFx 2.29.0#4976
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…JasperFx 2.29.0 Follow-up to #4962. #529 (JasperFx.Events 2.29.0) adds an exact per-cell progression read; implement it on MartenDatabase as a straight `where name = @name.Identity` lookup against mt_event_progression — no version/shard collapsing, so a blue/green deploy's versions, a sliced projection's shard keys, and per-tenant partitions each address their own row. A ShardKey of "All" is the projection's global cell. Returns null when the identity has no row; AgentStatus/LastHeartbeat stay null (#519). Bumps the JasperFx packages 2.28.1 -> 2.29.0. Adds read_projection_progress coverage: exact overload reads the specific version (not the newest), returns null for an absent identity, and distinguishes tenant rows. Closes #4975. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XKKBPsFJ83jd2o4hyGJnj6
This was referenced Jul 18, 2026
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Follow-up to #4962. JasperFx/jasperfx#529 (JasperFx.Events 2.29.0) adds an exact per-cell progression read; this implements it on
MartenDatabase.What
ReadProjectionProgressAsync(ShardName name, CancellationToken)— a straightwhere name = @name.Identitylookup againstmt_event_progression, no version/shard collapsing (the caller supplies the fullShardName, e.g. fromAllProjectionProgress). A blue/green deploy's versions, a sliced projection's shard keys, and per-tenant partitions each address their own row;ShardKey == "All"is the projection's global cell. Returnsnullfor an absent identity;AgentStatus/LastHeartbeatstaynull(#519).Bumps the JasperFx packages 2.28.1 → 2.29.0.
Tests
Extends
read_projection_progress: the exact overload reads the specific version (25 for V2, not the newest V3's 40), returnsnullfor an absent identity, and distinguishes tenant rows. 8/8 pass locally against the published 2.29.0.Closes #4975. Companion to the Polecat adoption (JasperFx/polecat#333) and the umbrella #435.
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