[
  {
    "Table": "fee_incomedetail",
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    "Key_name": "fee_incomedetail_pay_time_212d9f0a",
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    "Column_name": "pay_time",
    "Collation": "A",
    "Cardinality": 1849141,
    "Sub_part": null,
    "Packed": null,
    "Null": "YES",
    "Index_type": "BTREE",
    "Comment": "",
    "Index_comment": ""
  },
  {
    "Table": "fee_incomedetail",
    "Non_unique": 1,
    "Key_name": "idx_exectime_paytime",
    "Seq_in_index": 2,
    "Column_name": "pay_time",
    "Collation": "A",
    "Cardinality": 1995507,
    "Sub_part": null,
    "Packed": null,
    "Null": "YES",
    "Index_type": "BTREE",
    "Comment": "",
    "Index_comment": ""
  }
]