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			"name": "tidb_database",
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			"name": "total_stable_size",
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			"name": "total_stable_size_on_disk",
			"type": "UInt64"
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			"name": "avg_stable_rows",
			"type": "Float64"
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		{
			"name": "avg_stable_size",
			"type": "Float64"
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			"name": "total_pack_count_in_delta",
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			"name": "avg_pack_count_in_delta",
			"type": "Float64"
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			"name": "avg_pack_rows_in_delta",
			"type": "Float64"
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			"name": "avg_pack_size_in_delta",
			"type": "Float64"
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		{
			"name": "total_pack_count_in_stable",
			"type": "UInt64"
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		{
			"name": "avg_pack_count_in_stable",
			"type": "Float64"
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			"name": "avg_pack_rows_in_stable",
			"type": "Float64"
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			"name": "avg_pack_size_in_stable",
			"type": "Float64"
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			"name": "storage_stable_num_snapshots",
			"type": "UInt64"
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			"name": "storage_stable_oldest_snapshot_lifetime",
			"type": "Float64"
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			"name": "storage_stable_oldest_snapshot_thread_id",
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			"name": "storage_stable_oldest_snapshot_tracing_id",
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			"name": "storage_delta_num_snapshots",
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			"type": "UInt64"
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			"name": "background_tasks_length",
			"type": "UInt64"
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