Fix S3Select SQL column reference handling (#11957)

This change fixes handling of these types of queries:

- Double quoted column names with special characters:
    SELECT "column.name" FROM s3object
- Double quoted column names with reserved keywords:
    SELECT "CAST" FROM s3object
- Table name as prefix for column names:
    SELECT S3Object."CAST" FROM s3object

pkg/s3select/sql/analysis.go

@@ -19,6 +19,7 @@ package sql
 import (
 	"errors"
 	"fmt"
+	"strings"
 )
 
 // Query analysis - The query is analyzed to determine if it involves
@@ -177,7 +178,7 @@ func (e *PrimaryTerm) analyze(s *Select) (result qProp) {
 	case e.JPathExpr != nil:
 		// Check if the path expression is valid
 		if len(e.JPathExpr.PathExpr) > 0 {
-			if e.JPathExpr.BaseKey.String() != s.From.As {
+			if e.JPathExpr.BaseKey.String() != s.From.As && strings.ToLower(e.JPathExpr.BaseKey.String()) != baseTableName {
 				result = qProp{err: errInvalidKeypath}
 				return
 			}