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@@ -1 +1,5 @@
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-init
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+#5月15日
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+alter table data_ev_history add index index_data(device_id,attribute_name,data_time);
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+alter table data_gr_history add index index_data(device_id,attribute_name,data_time);
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+alter table data_lg_history add index index_data(device_id,attribute_name,data_time);
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+alter table data_lg_history add index index_data1(attribute_name,data_time,attribute_data);
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