{
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            {
                "type": "key",
                "name": "item",
                "columns": [
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                    "index_item_id"
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            "map_user",
            {
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                "name": "map_user",
                "columns": [
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                    "map_user_active",
                    "map_folder_id",
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            {
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        "method": "addIndex",
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        "params": [
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            {
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                "columns": [
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                "length": [
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                ]
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        "method": "addIndex",
        "params": [
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            {
                "type": "key",
                "name": "leader_group_id",
                "columns": [
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        "method": "addIndex",
        "params": [
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            {
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                "name": "m_exact",
                "columns": [
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    },
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        "method": "addIndex",
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            {
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                "name": "temp_key",
                "columns": [
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                ],
                "length": [
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                ]
            }
        ]
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        "method": "addIndex",
        "params": [
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            {
                "type": "key",
                "name": "task_lookup",
                "columns": [
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                "length": [
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        ]
    }
}