Set transaction_isolation as conneciton option

pkg/clients/db_client.go

@@ -33,6 +33,8 @@ func NewDBClient(host, user, password string, port int, database, application_na
 }
 
 func buildConnectionString(host, user, password string, port int, database, sslmode, application_name string) string {
+	options := "--transaction_isolation=strict\\ serializable"
+
 	url := &url.URL{
 		Scheme: "postgres",
 		User:   url.UserPassword(user, password),
@@ -41,6 +43,7 @@ func buildConnectionString(host, user, password string, port int, database, sslm
 		RawQuery: url.Values{
 			"application_name": {application_name},
 			"sslmode":          {sslmode},
+			"options":          {options},
 		}.Encode(),
 	}
 

pkg/utils/provider_meta.go

@@ -2,7 +2,6 @@ package utils
 
 import (
 	"fmt"
-	"log"
 	"strings"
 
 	"github.com/MaterializeInc/terraform-provider-materialize/pkg/clients"
@@ -95,12 +94,6 @@ func GetDBClientFromMeta(meta interface{}, d *schema.ResourceData) (*sqlx.DB, cl
 		return nil, region, fmt.Errorf("no database client for region: %s", region)
 	}
 
-	// Explicitly set the transaction isolation level to 'strict serializable'
-	_, err = dbClient.Exec("SET TRANSACTION_ISOLATION TO 'STRICT SERIALIZABLE'")
-	if err != nil {
-		log.Printf("[ERROR] Failed to set transaction isolation level for region %s: %v\n", region, err)
-	}
-
 	return dbClient.SQLX(), region, nil
 }