How to Resolve \"expected 10 arguments, got 1\" Error During Bulk Insert in Postgres using Go with pgx?

Bulk Insert in Postgres using Go with pgx

When attempting to perform a bulk insert into a PostgreSQL database using Go and the pgx library, an error message "expected 10 arguments, got 1" may be encountered. This issue arises due to inconsistencies in the SQL statement construction.

To resolve this issue, it is recommended to utilize the pgx.Conn.CopyFrom method instead of manually crafting the SQL statement. CopyFrom uses the PostgreSQL copy protocol for efficient bulk data insertion.

<code class="go">rows := [][]interface{}{
    {"abc", 10},
    {"dns", 11},
    {"qwe", 12},
    {"dss", 13},
    {"xcmk", 14},
}

copyCount, err := conn.CopyFrom(
    pgx.Identifier{"keys"},
    []string{"keyval", "lastval"},
    pgx.CopyFromRows(rows),
)</code>

By employing this approach, pgx will automatically handle the SQL statement generation and execution, ensuring efficient and reliable bulk insertion.

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