sql - 带有 Knex 查询生成器的 Concat 列和模糊搜索

Question

如何组合/连接 2 列，然后使用 Knex 查询生成器对组合值进行模糊搜索

模糊搜索正在处理accounts.first_name&accounts.last_name搜索（search_cols数组中的前 2 个项目

在大多数情况下，连接似乎不尊重列名如何传递到查询中。

const search_cols = [
    // other columns
    "accounts.first_name",
    "accounts.last_name",

    // ❌ "'accounts.first_name' || ' ' || 'accounts.last_name'", 
        // ERROR missing FROM-clause entry for table "first_name' || ' ' || 'accounts"
    // ❌ "first_name || ' ' || last_name", 
        // ERROR column "first_name || ' ' || last_name" does not exist

    // ❌ "CONCAT(accounts.first_name, accounts.last_name)",                     
        // missing FROM-clause entry for table "first_name, accounts"
    // ❌ "CONCAT(accounts.first_name, ' ' , accounts.last_name)",
        // missing FROM-clause entry for table "first_name, ' ' , accounts"
    // ❌ "CONCAT('accounts.first_name', ' ' , 'accounts.last_name')"
        // missing FROM-clause entry for table "first_name', ' ' , 'accounts"
    // ❌ `CONCAT("accounts"."first_name", ' ', "accounts"."last_name")`
        //  missing FROM-clause entry for table ""first_name", ' ', "accounts""
]

const pages = await Page.query()
    .join("accounts", "accounts.id", "account_id")
    .select([
        // other columns
        "accounts.first_name",
        "accounts.last_name",
    ])
    .where((builder) => {
        // SEARCH
        if (req.query.search_term) {
            for (const [idx, col] of search_cols.entries()) {
                console.log('THE CURRENT COLUMN', col)
                if (idx === 0) {
                    builder.where(col, "ilike", `%${req.query.search_term}%`)
                } else {
                    builder.orWhere(col, "ilike", `%${req.query.search_term}%`)
                }
            }
        }
    }