{"Entry":{"collection":"hook","key":"executorstart_hook","name":"ExecutorStart_hook","aliases":[],"metadata":{"aliases":[],"category":"Query execution","content_hash":"8493211083311c9fcee5c856c2084d9154ee7c6b52b8acccfb629df9a6a09009","derived_content_hash":"89a27b236e4b0a504bc81c1fe12cead3b9779b74c900d24f9f339341be753cc9","imported_at":"2026-09-27T17:57:58.866209+08:00","name":"ExecutorStart_hook","name_zh":"ExecutorStart_hook","repair_provenance":{"original_source_revision":"","receipt_sha256":"446ab5e4398d34a66c3a9df9f705fd2a3b5dd1046129d90af8fd6e61d7fd85c8","repair":"wiki-repair-20261023"},"slug":"executorstart_hook","source_rev":"wiki-repair-20261023:d2d351adbb88600d32855fd6e9deea8e48808d7cb07222276f693b61e9618734","summary":"Hook for plugins to get control in 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中接管处理的钩子。\u003c/p\u003e\u003ch3\u003e调用位置\u003c/h3\u003e\u003cul\u003e\u003cli\u003e\u003ccode\u003esrc/backend/executor/execMain.c:135\u003c/code\u003e\u003c/li\u003e\u003c/ul\u003e\u003ch3\u003e核心调用上下文：src/backend/executor/execMain.c:129–143\u003c/h3\u003e\u003cpre\u003e\t * call will be ignored if the top level query_id has already been\n\t * reported.\n\t */\n\tpgstat_report_query_id(queryDesc-\u0026gt;plannedstmt-\u0026gt;queryId, false);\n\n\tif (ExecutorStart_hook)\n\t\t(*ExecutorStart_hook) (queryDesc, eflags);\n\telse\n\t\tstandard_ExecutorStart(queryDesc, eflags);\n}\n\nvoid\nstandard_ExecutorStart(QueryDesc *queryDesc, int eflags)\n{\n\tEState\t   *estate;\u003c/pre\u003e","facts":[{"label":"Interface type","value":"ExecutorStart_hook_type"},{"label":"Header","value":"src/include/executor/executor.h"},{"label":"Subsystem","value":"Query execution"},{"label":"Initial value","value":"NULL (no hook installed)"}],"related":[{"label":"The 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