Change type of pg_statistic_ext.stxstattarget

Change from int32 to int16, to match attstattarget (changed in
90189eefc1).

Reviewed-by: Tomas Vondra <tomas.vondra@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/d6069765-5971-04d3-c10d-e4f7b2e9c459%40eisentraut.org

doc/src/sgml/catalogs.sgml

@@ -7622,7 +7622,7 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
 
      <row>
       <entry role="catalog_table_entry"><para role="column_definition">
-       <structfield>stxstattarget</structfield> <type>int4</type>
+       <structfield>stxstattarget</structfield> <type>int2</type>
       </para>
       <para>
        <structfield>stxstattarget</structfield> controls the level of detail

src/backend/commands/statscmds.c

@@ -498,7 +498,7 @@ CreateStatistics(CreateStatsStmt *stmt)
 	values[Anum_pg_statistic_ext_stxrelid - 1] = ObjectIdGetDatum(relid);
 	values[Anum_pg_statistic_ext_stxname - 1] = NameGetDatum(&stxname);
 	values[Anum_pg_statistic_ext_stxnamespace - 1] = ObjectIdGetDatum(namespaceId);
-	values[Anum_pg_statistic_ext_stxstattarget - 1] = Int32GetDatum(-1);
+	values[Anum_pg_statistic_ext_stxstattarget - 1] = Int16GetDatum(-1);
 	values[Anum_pg_statistic_ext_stxowner - 1] = ObjectIdGetDatum(stxowner);
 	values[Anum_pg_statistic_ext_stxkeys - 1] = PointerGetDatum(stxkeys);
 	values[Anum_pg_statistic_ext_stxkind - 1] = PointerGetDatum(stxkind);
@@ -676,7 +676,7 @@ AlterStatistics(AlterStatsStmt *stmt)
 
 	/* replace the stxstattarget column */
 	repl_repl[Anum_pg_statistic_ext_stxstattarget - 1] = true;
-	repl_val[Anum_pg_statistic_ext_stxstattarget - 1] = Int32GetDatum(newtarget);
+	repl_val[Anum_pg_statistic_ext_stxstattarget - 1] = Int16GetDatum(newtarget);
 
 	newtup = heap_modify_tuple(oldtup, RelationGetDescr(rel),
 							   repl_val, repl_null, repl_repl);

src/include/catalog/catversion.h

@@ -57,6 +57,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	202306141
+#define CATALOG_VERSION_NO	202307031
 
 #endif

src/include/catalog/pg_statistic_ext.h

@@ -43,7 +43,7 @@ CATALOG(pg_statistic_ext,3381,StatisticExtRelationId)
 														 * object's namespace */
 
 	Oid			stxowner BKI_LOOKUP(pg_authid); /* statistics object's owner */
-	int32		stxstattarget BKI_DEFAULT(-1);	/* statistics target */
+	int16		stxstattarget BKI_DEFAULT(-1);	/* statistics target */
 
 	/*
 	 * variable-length fields start here, but we allow direct access to