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Possible undefined behavior for bit shift in citus_stat_tenants.c

pull/7954/head
Maksim Melnikov 2025-04-07 15:09:57 +03:00
parent 8a8a493b67
commit 4fec8e2138
1 changed files with 2 additions and 1 deletions
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src/backend/distributed/utils/citus_stat_tenants.c
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@ -609,6 +609,7 @@ ReduceScoreIfNecessary(TenantStats *tenantStats, TimestampTz queryTime)
if (periodCountAfterLastScoreReduction > 0) if (periodCountAfterLastScoreReduction > 0)
{ {
tenantStats->lastScoreReduction = queryTime; tenantStats->lastScoreReduction = queryTime;
/*addtional check to avoid undefined behavior */ /*addtional check to avoid undefined behavior */
tenantStats->score = (periodCountAfterLastScoreReduction < tenantStats->score = (periodCountAfterLastScoreReduction <
TENANTS_STATS_FIELD_BIT_LENGTH(tenantStats, score)) TENANTS_STATS_FIELD_BIT_LENGTH(tenantStats, score))