chore: debug databricks logs for information schema columns

sqlconnect/internal/databricks/db.go

@@ -4,7 +4,10 @@ import (
 	"database/sql"
 	"encoding/json"
 	"fmt"
+	"log"
+	"os"
 	"strings"
+	"time"
 
 	databricks "github.com/databricks/databricks-sql-go"
 	"github.com/samber/lo"
@@ -60,9 +63,15 @@ func NewDB(configJson json.RawMessage) (*DB, error) {
 	db := sql.OpenDB(connector)
 	db.SetConnMaxIdleTime(config.MaxConnIdleTime)
 
+	l := log.New(os.Stdout, "databricks", log.LstdFlags)
+
+	startTime := time.Now()
+	l.Println("Checking if information schema is available")
 	if _, err = db.Exec("SELECT * FROM INFORMATION_SCHEMA.COLUMNS LIMIT 1"); err != nil && !strings.Contains(err.Error(), "TABLE_OR_VIEW_NOT_FOUND") {
+		l.Println("Error checking if information schema is available: ", err)
 		return nil, fmt.Errorf("checking if unity catalog is available: %w", err)
 	}
+	l.Println("Information schema is available: ", time.Since(startTime))
 	informationSchema := err == nil
 
 	return &DB{