"clustered columns" meaning in All languages combined

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "parents": [
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          "source": "w"
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      "form_of": [
        {
          "word": "clustered column"
        }
      ],
      "glosses": [
        "plural of clustered column"
      ],
      "id": "en-clustered_columns-en-noun-6j2dalR5",
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  "word": "clustered columns"
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      "expansion": "clustered columns",
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  "word": "clustered columns"
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