Added support to show statistics for materialized views. #3316

docs/en_US/release_notes_7_1.rst

@@ -21,6 +21,7 @@ New features
 ************
 
   | `Issue #3275 <https://github.com/pgadmin-org/pgadmin4/issues/3275>`_ -  Allow on demand record count setting to be changed per user using preferences.
+  | `Issue #3316 <https://github.com/pgadmin-org/pgadmin4/issues/3316>`_ -  Added support to show statistics for materialized views.
 
 Housekeeping
 ************

web/pgadmin/browser/server_groups/servers/databases/schemas/tables/templates/tables/sql/default/coll_table_stats.sql

@@ -23,7 +23,7 @@ SELECT
 FROM
     pg_catalog.pg_stat_all_tables st
 JOIN
-    pg_catalog.pg_class cl on cl.oid=st.relid
+    pg_catalog.pg_class cl on cl.oid=st.relid and cl.relkind IN ('r','s','t','p')
 WHERE
     schemaname = {{schema_name|qtLiteral(conn)}}
 ORDER BY st.relname;

web/pgadmin/browser/server_groups/servers/databases/schemas/views/__init__.py

@@ -350,7 +350,7 @@ class ViewNode(PGChildNodeView, VacuumSettings, SchemaDiffObjectCompare):
         'nodes': [{'get': 'node'}, {'get': 'nodes'}],
         'sql': [{'get': 'sql'}],
         'msql': [{'get': 'msql'}, {'get': 'msql'}],
-        'stats': [{'get': 'statistics'}],
+        'stats': [{'get': 'statistics'}, {'get': 'statistics'}],
         'dependency': [{'get': 'dependencies'}],
         'dependent': [{'get': 'dependents'}],
         'configs': [{'get': 'configs'}],
@@ -2341,6 +2341,79 @@ def check_utility_exists(self, gid, sid, did, scid, vid):
 
         return make_json_response(success=1)
 
+    @check_precondition
+    def statistics(self, gid, sid, did, scid, vid=None):
+        """
+        Statistics
+
+        Args:
+            gid: Server Group ID
+            sid: Server ID
+            did: Database ID
+            scid: Schema ID
+            vid: View ID
+
+        Returns the statistics for a particular MView if vid is specified,
+        otherwise it will return statistics for all the MView in that
+        schema.
+        """
+        status, schema_name = self.conn.execute_scalar(
+            render_template(
+                "/".join([self.template_path, 'sql/get_schema.sql']),
+                conn=self.conn, scid=scid
+            )
+        )
+        if not status:
+            return internal_server_error(errormsg=schema_name)
+
+        if vid is None:
+            status, res = self.conn.execute_dict(
+                render_template(
+                    "/".join([self.template_path,
+                              'sql/coll_mview_stats.sql']), conn=self.conn,
+                    schema_name=schema_name
+                )
+            )
+        else:
+            # For Individual mview stats
+
+            # Check if pgstattuple extension is already created?
+            # if created then only add extended stats
+            status, is_pgstattuple = self.conn.execute_scalar("""
+            SELECT (count(extname) > 0) AS is_pgstattuple
+            FROM pg_catalog.pg_extension
+            WHERE extname='pgstattuple'
+            """)
+            if not status:
+                return internal_server_error(errormsg=is_pgstattuple)
+
+            # Fetch MView name
+            status, mview_name = self.conn.execute_scalar(
+                render_template(
+                    "/".join([self.template_path, 'sql/get_view_name.sql']),
+                    conn=self.conn, scid=scid, vid=vid
+                )
+            )
+            if not status:
+                return internal_server_error(errormsg=mview_name)
+
+            status, res = self.conn.execute_dict(
+                render_template(
+                    "/".join([self.template_path, 'sql/stats.sql']),
+                    conn=self.conn, schema_name=schema_name,
+                    mview_name=mview_name,
+                    is_pgstattuple=is_pgstattuple, vid=vid
+                )
+            )
+
+        if not status:
+            return internal_server_error(errormsg=res)
+
+        return make_json_response(
+            data=res,
+            status=200
+        )
+
 
 SchemaDiffRegistry(view_blueprint.node_type, ViewNode)
 ViewNode.register_node_view(view_blueprint)

web/pgadmin/browser/server_groups/servers/databases/schemas/views/static/js/mview.js

@@ -39,6 +39,7 @@ define('pgadmin.node.mview', [
         label: gettext('Materialized Views'),
         type: 'coll-mview',
         columns: ['name', 'owner', 'comment'],
+        hasStatistics: true,
         canDrop: schemaChildTreeNode.isTreeItemOfChildOfSchema,
         canDropCascade: schemaChildTreeNode.isTreeItemOfChildOfSchema,
       });
@@ -64,6 +65,7 @@ define('pgadmin.node.mview', [
       label: gettext('Materialized View'),
       hasSQL: true,
       hasDepends: true,
+      hasStatistics: true,
       hasScriptTypes: ['create', 'select'],
       collection_type: 'coll-mview',
       width: pgBrowser.stdW.md + 'px',

web/pgadmin/browser/server_groups/servers/databases/schemas/views/templates/mviews/pg/default/sql/coll_mview_stats.sql

@@ -0,0 +1,29 @@
+SELECT
+    st.relname AS {{ conn|qtIdent(_('View Name')) }},
+    n_tup_ins AS {{ conn|qtIdent(_('Tuples inserted')) }},
+    n_tup_upd AS {{ conn|qtIdent(_('Tuples updated')) }},
+    n_tup_del AS {{ conn|qtIdent(_('Tuples deleted')) }},
+    n_tup_hot_upd AS {{ conn|qtIdent(_('Tuples HOT updated')) }},
+    n_live_tup AS {{ conn|qtIdent(_('Live tuples')) }},
+    n_dead_tup AS {{ conn|qtIdent(_('Dead tuples')) }},
+    last_vacuum AS {{ conn|qtIdent(_('Last vacuum')) }},
+    last_autovacuum AS {{ conn|qtIdent(_('Last autovacuum')) }},
+    last_analyze AS {{ conn|qtIdent(_('Last analyze')) }},
+    last_autoanalyze AS {{ conn|qtIdent(_('Last autoanalyze')) }},
+    vacuum_count AS {{ conn|qtIdent(_('Vacuum counter')) }},
+    autovacuum_count AS {{ conn|qtIdent(_('Autovacuum counter')) }},
+    analyze_count AS {{ conn|qtIdent(_('Analyze counter')) }},
+    autoanalyze_count AS {{ conn|qtIdent(_('Autoanalyze counter')) }},
+    pg_catalog.pg_relation_size(st.relid)
+        + CASE WHEN cl.reltoastrelid = 0 THEN 0 ELSE pg_catalog.pg_relation_size(cl.reltoastrelid)
+        + COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                        FROM pg_catalog.pg_index WHERE indrelid=cl.reltoastrelid)::int8, 0) END
+        + COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                        FROM pg_catalog.pg_index WHERE indrelid=st.relid)::int8, 0) AS {{ conn|qtIdent(_('Total Size')) }}
+FROM
+    pg_catalog.pg_stat_all_tables st
+JOIN
+    pg_catalog.pg_class cl on cl.oid=st.relid and cl.relkind = 'm'
+WHERE
+    schemaname = {{schema_name|qtLiteral(conn)}}
+ORDER BY st.relname;

web/pgadmin/browser/server_groups/servers/databases/schemas/views/templates/mviews/pg/default/sql/stats.sql

@@ -0,0 +1,53 @@
+SELECT
+    seq_scan AS {{ conn|qtIdent(_('Sequential scans')) }},
+    seq_tup_read AS {{ conn|qtIdent(_('Sequential tuples read')) }},
+    idx_scan AS {{ conn|qtIdent(_('Index scans')) }},
+    idx_tup_fetch AS {{ conn|qtIdent(_('Index tuples fetched')) }},
+    n_tup_ins AS {{ conn|qtIdent(_('Tuples inserted')) }},
+    n_tup_upd AS {{ conn|qtIdent(_('Tuples updated')) }},
+    n_tup_del AS {{ conn|qtIdent(_('Tuples deleted')) }},
+    n_tup_hot_upd AS {{ conn|qtIdent(_('Tuples HOT updated')) }},
+    n_live_tup AS {{ conn|qtIdent(_('Live tuples')) }},
+    n_dead_tup AS {{ conn|qtIdent(_('Dead tuples')) }},
+    heap_blks_read AS {{ conn|qtIdent(_('Heap blocks read')) }},
+    heap_blks_hit AS {{ conn|qtIdent(_('Heap blocks hit')) }},
+    idx_blks_read AS {{ conn|qtIdent(_('Index blocks read')) }},
+    idx_blks_hit AS {{ conn|qtIdent(_('Index blocks hit')) }},
+    toast_blks_read AS {{ conn|qtIdent(_('Toast blocks read')) }},
+    toast_blks_hit AS {{ conn|qtIdent(_('Toast blocks hit')) }},
+    tidx_blks_read AS {{ conn|qtIdent(_('Toast index blocks read')) }},
+    tidx_blks_hit AS {{ conn|qtIdent(_('Toast index blocks hit')) }},
+    last_vacuum AS {{ conn|qtIdent(_('Last vacuum')) }},
+    last_autovacuum AS {{ conn|qtIdent(_('Last autovacuum')) }},
+    last_analyze AS {{ conn|qtIdent(_('Last analyze')) }},
+    last_autoanalyze AS {{ conn|qtIdent(_('Last autoanalyze')) }},
+    pg_catalog.pg_relation_size(stat.relid) AS {{ conn|qtIdent(_('Table size')) }},
+    CASE WHEN cl.reltoastrelid = 0 THEN NULL ELSE pg_catalog.pg_size_pretty(pg_catalog.pg_relation_size(cl.reltoastrelid)
+        + COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                        FROM pg_catalog.pg_index WHERE indrelid=cl.reltoastrelid)::int8, 0))
+        END AS {{ conn|qtIdent(_('Toast table size')) }},
+    COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                                FROM pg_catalog.pg_index WHERE indrelid=stat.relid)::int8, 0)
+        AS {{ conn|qtIdent(_('Indexes size')) }}
+{% if is_pgstattuple %}
+{#== EXTENDED STATS ==#}
+    ,tuple_count AS {{ conn|qtIdent(_('Tuple count')) }},
+    tuple_len AS {{ conn|qtIdent(_('Tuple length')) }},
+    tuple_percent AS {{ conn|qtIdent(_('Tuple percent')) }},
+    dead_tuple_count AS {{ conn|qtIdent(_('Dead tuple count')) }},
+    dead_tuple_len AS {{ conn|qtIdent(_('Dead tuple length')) }},
+    dead_tuple_percent AS {{ conn|qtIdent(_('Dead tuple percent')) }},
+    free_space AS {{ conn|qtIdent(_('Free space')) }},
+    free_percent AS {{ conn|qtIdent(_('Free percent')) }}
+FROM
+    pgstattuple('{{schema_name}}.{{mview_name}}'), pg_catalog.pg_stat_all_tables stat
+{% else %}
+FROM
+    pg_catalog.pg_stat_all_tables stat
+{% endif %}
+JOIN
+    pg_catalog.pg_statio_all_tables statio ON stat.relid = statio.relid
+JOIN
+    pg_catalog.pg_class cl ON cl.oid=stat.relid
+WHERE
+    stat.relid = {{ vid }}::oid

web/pgadmin/browser/server_groups/servers/databases/schemas/views/templates/mviews/ppas/default/sql/coll_mview_stats.sql

@@ -0,0 +1,29 @@
+SELECT
+    st.relname AS {{ conn|qtIdent(_('View Name')) }},
+    n_tup_ins AS {{ conn|qtIdent(_('Tuples inserted')) }},
+    n_tup_upd AS {{ conn|qtIdent(_('Tuples updated')) }},
+    n_tup_del AS {{ conn|qtIdent(_('Tuples deleted')) }},
+    n_tup_hot_upd AS {{ conn|qtIdent(_('Tuples HOT updated')) }},
+    n_live_tup AS {{ conn|qtIdent(_('Live tuples')) }},
+    n_dead_tup AS {{ conn|qtIdent(_('Dead tuples')) }},
+    last_vacuum AS {{ conn|qtIdent(_('Last vacuum')) }},
+    last_autovacuum AS {{ conn|qtIdent(_('Last autovacuum')) }},
+    last_analyze AS {{ conn|qtIdent(_('Last analyze')) }},
+    last_autoanalyze AS {{ conn|qtIdent(_('Last autoanalyze')) }},
+    vacuum_count AS {{ conn|qtIdent(_('Vacuum counter')) }},
+    autovacuum_count AS {{ conn|qtIdent(_('Autovacuum counter')) }},
+    analyze_count AS {{ conn|qtIdent(_('Analyze counter')) }},
+    autoanalyze_count AS {{ conn|qtIdent(_('Autoanalyze counter')) }},
+    pg_catalog.pg_relation_size(st.relid)
+        + CASE WHEN cl.reltoastrelid = 0 THEN 0 ELSE pg_catalog.pg_relation_size(cl.reltoastrelid)
+        + COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                        FROM pg_catalog.pg_index WHERE indrelid=cl.reltoastrelid)::int8, 0) END
+        + COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                        FROM pg_catalog.pg_index WHERE indrelid=st.relid)::int8, 0) AS {{ conn|qtIdent(_('Total Size')) }}
+FROM
+    pg_catalog.pg_stat_all_tables st
+JOIN
+    pg_catalog.pg_class cl on cl.oid=st.relid and cl.relkind = 'm'
+WHERE
+    schemaname = {{schema_name|qtLiteral(conn)}}
+ORDER BY st.relname;

web/pgadmin/browser/server_groups/servers/databases/schemas/views/templates/mviews/ppas/default/sql/stats.sql

@@ -0,0 +1,53 @@
+SELECT
+    seq_scan AS {{ conn|qtIdent(_('Sequential scans')) }},
+    seq_tup_read AS {{ conn|qtIdent(_('Sequential tuples read')) }},
+    idx_scan AS {{ conn|qtIdent(_('Index scans')) }},
+    idx_tup_fetch AS {{ conn|qtIdent(_('Index tuples fetched')) }},
+    n_tup_ins AS {{ conn|qtIdent(_('Tuples inserted')) }},
+    n_tup_upd AS {{ conn|qtIdent(_('Tuples updated')) }},
+    n_tup_del AS {{ conn|qtIdent(_('Tuples deleted')) }},
+    n_tup_hot_upd AS {{ conn|qtIdent(_('Tuples HOT updated')) }},
+    n_live_tup AS {{ conn|qtIdent(_('Live tuples')) }},
+    n_dead_tup AS {{ conn|qtIdent(_('Dead tuples')) }},
+    heap_blks_read AS {{ conn|qtIdent(_('Heap blocks read')) }},
+    heap_blks_hit AS {{ conn|qtIdent(_('Heap blocks hit')) }},
+    idx_blks_read AS {{ conn|qtIdent(_('Index blocks read')) }},
+    idx_blks_hit AS {{ conn|qtIdent(_('Index blocks hit')) }},
+    toast_blks_read AS {{ conn|qtIdent(_('Toast blocks read')) }},
+    toast_blks_hit AS {{ conn|qtIdent(_('Toast blocks hit')) }},
+    tidx_blks_read AS {{ conn|qtIdent(_('Toast index blocks read')) }},
+    tidx_blks_hit AS {{ conn|qtIdent(_('Toast index blocks hit')) }},
+    last_vacuum AS {{ conn|qtIdent(_('Last vacuum')) }},
+    last_autovacuum AS {{ conn|qtIdent(_('Last autovacuum')) }},
+    last_analyze AS {{ conn|qtIdent(_('Last analyze')) }},
+    last_autoanalyze AS {{ conn|qtIdent(_('Last autoanalyze')) }},
+    pg_catalog.pg_relation_size(stat.relid) AS {{ conn|qtIdent(_('Table size')) }},
+    CASE WHEN cl.reltoastrelid = 0 THEN NULL ELSE pg_catalog.pg_size_pretty(pg_catalog.pg_relation_size(cl.reltoastrelid)
+        + COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                        FROM pg_catalog.pg_index WHERE indrelid=cl.reltoastrelid)::int8, 0))
+        END AS {{ conn|qtIdent(_('Toast table size')) }},
+    COALESCE((SELECT SUM(pg_catalog.pg_relation_size(indexrelid))
+                                FROM pg_catalog.pg_index WHERE indrelid=stat.relid)::int8, 0)
+        AS {{ conn|qtIdent(_('Indexes size')) }}
+{% if is_pgstattuple %}
+{#== EXTENDED STATS ==#}
+    ,tuple_count AS {{ conn|qtIdent(_('Tuple count')) }},
+    tuple_len AS {{ conn|qtIdent(_('Tuple length')) }},
+    tuple_percent AS {{ conn|qtIdent(_('Tuple percent')) }},
+    dead_tuple_count AS {{ conn|qtIdent(_('Dead tuple count')) }},
+    dead_tuple_len AS {{ conn|qtIdent(_('Dead tuple length')) }},
+    dead_tuple_percent AS {{ conn|qtIdent(_('Dead tuple percent')) }},
+    free_space AS {{ conn|qtIdent(_('Free space')) }},
+    free_percent AS {{ conn|qtIdent(_('Free percent')) }}
+FROM
+    pgstattuple('{{schema_name}}.{{mview_name}}'), pg_catalog.pg_stat_all_tables stat
+{% else %}
+FROM
+    pg_catalog.pg_stat_all_tables stat
+{% endif %}
+JOIN
+    pg_catalog.pg_statio_all_tables statio ON stat.relid = statio.relid
+JOIN
+    pg_catalog.pg_class cl ON cl.oid=stat.relid
+WHERE
+    stat.relid = {{ vid }}::oid