Incorrect bigquery dialect rewrite

[brandboat]

ERROR: com.google.cloud.bigquery.BigQueryException: OFFSET is not a function. It can only be used for array element access using array[OFFSET(position)] at [28:70]

{
  "catalog": "canner-cml",
  "schema": "hubspot",
  "models": [
    {
      "name": "Customer",
      "refSql": "select * from \"canner-cml\".hubspot.hubspot__companies",
      "columns": [
        {
          "name": "id",
          "type": "INTEGER",
          "isCalculated" : false,
          "notNull" : true,
          "expression": "company_id"
        },
        {
          "name": "company_name",
          "type": "STRING",
          "isCalculated" : false,
          "notNull" : false,
          "expression": "company_name"
        },
        {
          "name": "total_deal_size",
          "type": "FLOAT",
          "isCalculated" : true,
          "notNull" : false,
          "expression": "sum(deals.amount)"
        },
        {
          "name": "deals",
          "type": "Deal",
          "relationship": "CustomerDeals",
          "isCalculated" : false,
          "notNull" : true
        }
      ],
      "primaryKey": "id"
    },
    {
      "name": "Deal",
      "refSql": "select * from \"canner-cml\".hubspot.hubspot__deals",
      "columns": [
        {
          "name": "company_id",
          "type": "INTEGER",
          "isCalculated" : false,
          "notNull" : false,
          "expression": "company_id"
        },
        {
          "name": "deal_name",
          "type": "STRING",
          "isCalculated" : false,
          "notNull" : false,
          "expression": "deal_name"
        },
        {
          "name": "owner_name",
          "type": "STRING",
          "isCalculated" : false,
          "notNull" : false,
          "expression": "owner_full_name"
        },
        {
          "name": "amount",
          "type": "FLOAT",
          "isCalculated": false,
          "notNull": false,
          "expression": "amount"
        }
      ]
    },
    {
      "name": "Ticket",
      "refSql": "select * from \"canner-cml\".hubspot.hubspot__tickets",
      "columns": [
        {
          "name": "id",
          "type": "INTEGER",
          "isCalculated" : false,
          "notNull" : true,
          "expression": "ticket_id"
        },
        {
          "name": "owner_name",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "owner_full_name"
        },
        {
          "name": "closed_date",
          "type": "DATE",
          "isCalculated": false,
          "notNull": false,
          "expression": "closed_date"
        },
        {
          "name": "created_date",
          "type": "DATE",
          "isCalculated": false,
          "notNull": false,
          "expression": "created_date"
        },
        {
          "name": "first_agent_reply_date",
          "type": "DATE",
          "isCalculated": false,
          "notNull": false,
          "expression": "first_agent_reply_at"
        },
        {
          "name": "ticket_status",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "pipeline_stage_label"
        },
        {
          "name": "ticket_category",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "ticket_category"
        },
        {
          "name": "is_closed",
          "type": "BOOLEAN",
          "isCalculated": false,
          "notNull": false,
          "expression": "is_closed"
        },
        {
          "name": "company_name",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "SPLIT(ARRAY_TO_STRING(company_names, ';'), ';')[OFFSET(0)]"
        },
        {
          "name": "company_id",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "SPLIT(ARRAY_TO_STRING(company_ids, ';'), ';')[OFFSET(0)]"
        },
        {
          "name": "subject",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "ticket_subject"
        },
        {
          "name": "content",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "ticket_content"
        },
        {
          "name": "severity",
          "type": "STRING",
          "isCalculated": false,
          "notNull": false,
          "expression": "ticket_priority"
        }
      ]
    }
  ],
  "relationships": [
    {
      "name": "CustomerDeals",
      "models": [ "Customer", "Deal" ],
      "joinType": "ONE_TO_MANY",
      "condition": "Customer.id = Deal.company_id"
    }
  ],
  "metrics": [],
  "enumDefinitions": [],
  "views": []
}