#pragma once #include namespace DB { enum class ExternalCommandStderrReaction : uint8_t { NONE, /// Do nothing. LOG, /// Try to log all outputs of stderr from the external command immediately. LOG_FIRST, /// Try to log first 1_KiB outputs of stderr from the external command after exit. LOG_LAST, /// Same as above, but log last 1_KiB outputs. THROW /// Immediately throw exception when the external command outputs something to its stderr. }; ExternalCommandStderrReaction parseExternalCommandStderrReaction(const std::string & config); }