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perf(channelserver): move UserBinary and minidata to memory-only

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UserBinary type1-5 and EnhancedMinidata are transient session state
resent by the client on every login. Persisting them to the DB on
every set was unnecessary I/O. Both are now served exclusively from
server-scoped in-memory maps (userBinaryParts, minidataParts).

Includes a schema migration to drop the now-unused type2/type3
columns from user_binary and minidata column from characters.

Ref #158
This commit is contained in:
Houmgaor
2026-02-19 00:05:20 +01:00
parent b2b1c426a5
commit 99e544e0cf
6 changed files with 38 additions and 46 deletions
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7
schemas/patch-schema/28-drop-transient-binary-columns.sql Normal file
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-- Drop transient binary columns that are now memory-only.
-- UserBinary type2/type3 and characters.minidata are session state
-- resent by the client on every login; they do not need persistence.
ALTER TABLE user_binary DROP COLUMN IF EXISTS type2;
ALTER TABLE user_binary DROP COLUMN IF EXISTS type3;
ALTER TABLE characters DROP COLUMN IF EXISTS minidata;