Some review comments for patch v54-0004.

(since preparing this post, I saw you have already posted v55-0001 but
AFAIK, since 55-0001 is just a merge, the same review comments are
still applicable)

======
doc/src/sgml/catalogs.sgml

1.
       <para>
-       If true, this publication replicates the stored generated columns
-       present in the tables associated with the publication.
+       <literal>n</literal> indicates that the generated columns in the tables
+       associated with the publication should not be replicated.
+       <literal>s</literal> indicates that the stored generated columns in the
+       tables associated with the publication should be replicated.
       </para></entry>

It looks OK, but maybe we should use a wording style similar to that
used already for pg_subscription.substream?

Also, should this mention column lists?

SUGGESTION
Indicates how to handle generated column replication (when there is no
publication column list): <literal>n</literal> = generated columns in
the tables associated with the publication should not be replicated;
<literal>s</literal> = stored generated columns in the tables
associated with the publication should be replicated.

======
src/backend/commands/publicationcmds.c

parse_publication_options:

2.
    bool *publish_generated_columns_given,
-   bool *publish_generated_columns)
+   char *publish_generated_columns)

Why not use the PublishGencolsType enum here?

~~~

CreatePublication:

3.
- bool publish_generated_columns;
+ char publish_generated_columns;
  AclResult aclresult;

Why not use the PublishGencolsType enum here?

~~~

AlterPublicationOptions:

4.
  bool publish_generated_columns_given;
- bool publish_generated_columns;
+ char publish_generated_columns;

Why not use the PublishGencolsType enum here?

~~~

defGetGeneratedColsOption::

5.
+/*
+ * Extract the publish_generated_columns option value from a DefElem. "stored"
+ * and "none" values are accepted.
+ */
+static char
+defGetGeneratedColsOption(DefElem *def)
+{

The return type should be PublishGencolsType.

======
src/include/catalog/pg_publication.h

6.
- /* true if generated columns data should be published */
- bool pubgencols;
+ /*
+ * none if generated column data should not be published. stored if stored
+ * generated column data should be published.
+ */
+ char pubgencols_type;
 } FormData_pg_publication;


Maybe this was accidentally changed by some global replacement you
did. IMO the previous (v53) version comment was better here.

- bool pubgencols;
+ /*
+ * 'n'(none) if generated column data should not be published.
+ * 's'(stored) if stored generated column data should be published.
+ */

======

FYI, please see the attached diffs where I have already made some of
these changes while experimenting with the suggestions.

======
Kind Regards,
Peter Smith.
Fujitsu Australia
diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index e39612f..9391922 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -6399,10 +6399,12 @@ SCRAM-SHA-256$<replaceable>&lt;iteration 
count&gt;</replaceable>:<replaceable>&l
        <structfield>pubgencols</structfield> <type>char</type>
       </para>
       <para>
-       <literal>n</literal> indicates that the generated columns in the tables
-       associated with the publication should not be replicated.
-       <literal>s</literal> indicates that the stored generated columns in the
-       tables associated with the publication should be replicated.
+       Indicates how to handle generated column replication when there is no
+       publication column list:
+       <literal>n</literal> = generated columns in the tables associated with
+       the publication should not be replicated;
+       <literal>s</literal> = stored generated columns in the tables associated
+       with the publication should be replicated.
       </para></entry>
      </row>
 
diff --git a/src/backend/commands/publicationcmds.c 
b/src/backend/commands/publicationcmds.c
index b49d9ab..1c51356 100644
--- a/src/backend/commands/publicationcmds.c
+++ b/src/backend/commands/publicationcmds.c
@@ -70,7 +70,7 @@ static void PublicationDropTables(Oid pubid, List *rels, bool 
missing_ok);
 static void PublicationAddSchemas(Oid pubid, List *schemas, bool if_not_exists,
                                                                  
AlterPublicationStmt *stmt);
 static void PublicationDropSchemas(Oid pubid, List *schemas, bool missing_ok);
-static char defGetGeneratedColsOption(DefElem *def);
+static PublishGencolsType defGetGeneratedColsOption(DefElem *def);
 
 
 static void
@@ -81,7 +81,7 @@ parse_publication_options(ParseState *pstate,
                                                  bool 
*publish_via_partition_root_given,
                                                  bool 
*publish_via_partition_root,
                                                  bool 
*publish_generated_columns_given,
-                                                 char 
*publish_generated_columns)
+                                                 PublishGencolsType 
*publish_generated_columns)
 {
        ListCell   *lc;
 
@@ -777,7 +777,7 @@ CreatePublication(ParseState *pstate, CreatePublicationStmt 
*stmt)
        bool            publish_via_partition_root_given;
        bool            publish_via_partition_root;
        bool            publish_generated_columns_given;
-       char            publish_generated_columns;
+       PublishGencolsType              publish_generated_columns;
        AclResult       aclresult;
        List       *relations = NIL;
        List       *schemaidlist = NIL;
@@ -837,7 +837,7 @@ CreatePublication(ParseState *pstate, CreatePublicationStmt 
*stmt)
        values[Anum_pg_publication_pubviaroot - 1] =
                BoolGetDatum(publish_via_partition_root);
        values[Anum_pg_publication_pubgencols_type - 1] =
-               CharGetDatum(publish_generated_columns);
+               CharGetDatum((char)publish_generated_columns);
 
        tup = heap_form_tuple(RelationGetDescr(rel), values, nulls);
 
@@ -924,7 +924,7 @@ AlterPublicationOptions(ParseState *pstate, 
AlterPublicationStmt *stmt,
        bool            publish_via_partition_root_given;
        bool            publish_via_partition_root;
        bool            publish_generated_columns_given;
-       char            publish_generated_columns;
+       PublishGencolsType      publish_generated_columns;
        ObjectAddress obj;
        Form_pg_publication pubform;
        List       *root_relids = NIL;
@@ -1048,7 +1048,7 @@ AlterPublicationOptions(ParseState *pstate, 
AlterPublicationStmt *stmt,
 
        if (publish_generated_columns_given)
        {
-               values[Anum_pg_publication_pubgencols_type - 1] = 
CharGetDatum(publish_generated_columns);
+               values[Anum_pg_publication_pubgencols_type - 1] = 
CharGetDatum((char)publish_generated_columns);
                replaces[Anum_pg_publication_pubgencols_type - 1] = true;
        }
 
@@ -2050,7 +2050,7 @@ AlterPublicationOwner_oid(Oid subid, Oid newOwnerId)
  * Extract the publish_generated_columns option value from a DefElem. "stored"
  * and "none" values are accepted.
  */
-static char
+static PublishGencolsType
 defGetGeneratedColsOption(DefElem *def)
 {
        char       *sval;

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