fix(sql): fix spurious 'undeclared variable' error#6003
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bluestreak01 merged 1 commit intomasterfrom Jul 30, 2025
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Symptoms: Under high query load, QuestDB could throw a spurious 'undeclared variable error'. Root cause: SqlParser instance shared a single stateful visitor to replace variables. This creates a race where state from one SQL could bleed into un unrelated SQL.
jerrinot
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ideoma
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Jul 30, 2025
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[PR Coverage check]😍 pass : 1 / 1 (100.00%) file detail
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Symptoms:
Under high query load, QuestDB could throw a spurious 'undeclared variable error'.
Root cause:
SqlParser instance shared a single stateful visitor to replace variables. This creates a race where state from one SQL could bleed into an unrelated SQL.
fixes #6002