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session/mysql: prevent duplicate active sessions #2509

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e3711d2
fix(session/mysql): prevent duplicate sessions
Wsp030914 Aug 22, 2026
cf32ccb
fix(session/mysql): handle cleanup review
Wsp030914 Aug 22, 2026
758e4b6
fix(session/mysql): handle coarse tombstones
Wsp030914 Aug 22, 2026
235fbb3
refactor(mysql): clarify session lock flow
Wsp030914 Aug 22, 2026
69a601a
test(mysql): assert locking session query
Wsp030914 Aug 22, 2026
0f29345
test(mysql): harden session race test
Wsp030914 Aug 22, 2026
41cc3a1
fix(mysql): preserve state tombstones on conflict
Wsp030914 Aug 24, 2026
b1fe2f3
test(mysql): cover state tombstone errors
Wsp030914 Aug 24, 2026
d774917
test(mysql): cover absent session creation race
Wsp030914 Aug 24, 2026
4c7af23
Merge branch 'main' of https://github.com/trpc-group/trpc-agent-go in…
Wsp030914 Aug 24, 2026
9b9ff95
fix(mysql): honor hard-delete duplicate repair
Wsp030914 Aug 24, 2026
05d9b30
fix: preserve live duplicate session cleanup
Wsp030914 Aug 25, 2026
cad00a1
test: cover mysql session cleanup edges
Wsp030914 Aug 25, 2026
49e66af
fix(mysql): dedupe DeleteSession tombstones
Wsp030914 Aug 26, 2026
dd0b94f
fix(mysql): classify live cleanup keys by collation
Wsp030914 Aug 27, 2026
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8 changes: 8 additions & 0 deletions internal/session/sqldb/schema.go
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Original file line number Diff line number Diff line change
Expand Up @@ -61,4 +61,12 @@ const (
// MySQLErrDuplicateEntry is the error code when a duplicate entry violates a unique constraint
// Error 1062: Duplicate entry for key
MySQLErrDuplicateEntry uint16 = 1062

// MySQLErrLockWaitTimeout is the error code when lock wait timeout is exceeded.
// Error 1205: Lock wait timeout exceeded
MySQLErrLockWaitTimeout uint16 = 1205

// MySQLErrLockDeadlock is the error code when a deadlock is found.
// Error 1213: Deadlock found when trying to get lock
MySQLErrLockDeadlock uint16 = 1213
)
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