Submitting an SQL query with a slice parameter - sql

Question

I have a Snowflake query where I'm trying to update a field on all items where another field is in a list which is submitted to the query as a variable:
UPDATE my_table SET download_enabled = ? WHERE provider_id = ? AND symbol IN (?)
I've tried doing this query using the gosnowflake.Array function like this:
enable := true
provider := 1
query := "UPDATE my_table SET download_enabled = ? WHERE provider_id = ? AND symbol IN (?)"
if _, err := client.db.ExecContext(ctx, query, enable, provider,
gosnowflake.Array(assets)); err != nil {
fmt.Printf("Error: %v", err)
}
However, this code fails with the following error:
002099 (42601): SQL compilation error: Batch size of 1 for bind variable 1 not the same as previous size of 2.
So then, how can I submit a variable representing a list of values to an SQL query?

Answer 1

I found a potential workaround, which is to submit each item in the list as a separate parameter explicitly:
func Delimit(s string, sep string, count uint) string {
return strings.Repeat(s+sep, int(count)-1) + s
}
func doQuery(enable bool, provider int, assets ...string) error {
query := fmt.Sprintf("UPDATE my_table SET download_enabled = ? " +
"WHERE provider_id = ? AND symbol IN (%s)", Delimit("?", ", ", uint(len(assets))))
params := []interface{}{enable, provider}
for _, asset := range assets {
params = append(params, asset)
}
if _, err := client.db.ExecContext(ctx, query, params...); err != nil {
return err
}
return nil
}
Needless to say this is a less elegant solution then what I wanted but it does work.