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 where: {
    pogyowon: {
      OR: [
        { id: pogyowonInfo.id, },
        { alias: pogyowonInfo.alias }
      ]
    },
\!h     name_contains: name ? name : undefined
  }

• AND can be omitted by default
  so pogyowon && name_contains
• if name exists, then add name to condition otherwise, not
  (use undefined not null)