{"Entry":{"collection":"hook","key":"explain_get_index_name_hook","name":"explain_get_index_name_hook","aliases":[],"metadata":{"aliases":[],"category":"EXPLAIN","content_hash":"9f8483f7be0937306baed959b217d025ab079f1a059209a860704e52e2670583","derived_content_hash":"ef2c6166e61b01072e72ad60064ec5a75681468134afd6034886593930addb9f","imported_at":"2026-09-30T17:44:22.423168+08:00","name":"explain_get_index_name_hook","name_zh":"explain_get_index_name_hook","repair_provenance":{"original_source_revision":"","receipt_sha256":"b2565c004966288f8d805f55c99298b2d2f409c5945460cc6e67543ff4df6e03","repair":"wiki-repair-20261023"},"slug":"explain_get_index_name_hook","source_rev":"wiki-repair-20261023:4803425204b6dd9dba3c2ebc9aed7060eefd1c3f83e0b311e982059ba6438b6d","summary":"Hook for plugins to get control in 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explain_get_index_name_hook;\u003c/pre\u003e\u003ch3\u003e调用位置\u003c/h3\u003e\u003cul\u003e\u003cli\u003e\u003ccode\u003esrc/backend/commands/explain.c:4027\u003c/code\u003e\u003c/li\u003e\u003c/ul\u003e\u003ch3\u003e核心调用上下文：src/backend/commands/explain.c:4021–4035\u003c/h3\u003e\u003cpre\u003estatic const char *\nexplain_get_index_name(Oid indexId)\n{\n\tconst char *result;\n\n\tif (explain_get_index_name_hook)\n\t\tresult = (*explain_get_index_name_hook) (indexId);\n\telse\n\t\tresult = NULL;\n\tif (result == NULL)\n\t{\n\t\t/* default behavior: look it up in the catalogs */\n\t\tresult = get_rel_name(indexId);\n\t\tif (result == NULL)\n\t\t\telog(ERROR, \u0026quot;cache lookup failed for index %u\u0026quot;, indexId);\u003c/pre\u003e","facts":[{"label":"Interface type","value":"explain_get_index_name_hook_type"},{"label":"Header","value":"src/include/commands/explain.h"},{"label":"Subsystem","value":"EXPLAIN"},{"label":"Initial value","value":"NULL (no hook 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