diff --git a/doc/src/sgml/ref/comment.sgml b/doc/src/sgml/ref/comment.sgml
index 7bbfd01..44e2dbf 100644
*** a/doc/src/sgml/ref/comment.sgml
--- b/doc/src/sgml/ref/comment.sgml
*************** COMMENT ON
*** 25,30 ****
--- 25,31 ----
{
TABLE object_name |
COLUMN table_name.column_name |
+ COLUMN index_name.column_name |
AGGREGATE agg_name (agg_type [, ...] ) |
CAST (sourcetype AS targettype) |
CONSTRAINT constraint_name ON table_name |
*************** COMMENT ON
*** 87,92 ****
--- 88,94 ----
object_name
table_name.column_name
+ index_name.column_name
agg_name
constraint_name
func_name