Global AND and OR functions for better indentation of a complex condition in the Go code and in the generated SQL.

sqlite/select_statement_test.go

@@ -148,9 +148,9 @@ func TestSelect_NOT_EXISTS(t *testing.T) {
 SELECT table1.col_int AS "table1.col_int"
 FROM db.table1
 WHERE NOT (EXISTS (
-          SELECT table2.col_int AS "table2.col_int"
-          FROM db.table2
-          WHERE table1.col_int = table2.col_int
-     ));
+           SELECT table2.col_int AS "table2.col_int"
+           FROM db.table2
+           WHERE table1.col_int = table2.col_int
+      ));
 `)
 }