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Hook for intercepting messages before they are sent to the server log

此版本暂无所选语言的定义，以下显示原始英文内容。

Interface type

emit_log_hook_type

Header

src/include/utils/elog.h

Subsystem

Logging and function calls

Initial value

NULL (no hook installed)

signature

typedef void (*emit_log_hook_type) (ErrorData *edata); extern PGDLLIMPORT emit_log_hook_type emit_log_hook;