fix for schemas

src/i18n/locales/en.ts

@@ -127,6 +127,10 @@ export const en = {
                 no_results: 'No tables found matching your filter.',
                 show_list: 'Show Table List',
                 show_dbml: 'Show DBML Editor',
+                default_grouping: 'Default View',
+                group_by_schema: 'Group by Schema',
+                group_by_area: 'Group by Area',
+                no_area: 'No Area',
 
                 table: {
                     fields: 'Fields',
@@ -262,6 +266,15 @@ export const en = {
             },
         },
 
+        canvas_filter: {
+            title: 'Filter Tables',
+            search_placeholder: 'Search tables...',
+            default_grouping: 'Default View',
+            group_by_schema: 'Group by Schema',
+            group_by_area: 'Group by Area',
+            no_area: 'No Area',
+        },
+
         toolbar: {
             zoom_in: 'Zoom In',
             zoom_out: 'Zoom Out',

src/pages/editor-page/canvas/area-utils.ts

@@ -1,6 +1,9 @@
 import type { DBTable } from '@/lib/domain/db-table';
 import type { Area } from '@/lib/domain/area';
-import { calcTableHeight } from '@/lib/domain/db-table';
+import {
+    calcTableHeight,
+    shouldShowTablesBySchemaFilter,
+} from '@/lib/domain/db-table';
 
 /**
  * Check if a table is inside an area based on their positions and dimensions
@@ -53,9 +56,31 @@ const findContainingArea = (table: DBTable, areas: Area[]): Area | null => {
  */
 export const updateTablesParentAreas = (
     tables: DBTable[],
-    areas: Area[]
+    areas: Area[],
+    hiddenTableIds?: string[],
+    filteredSchemas?: string[]
 ): DBTable[] => {
     return tables.map((table) => {
+        // Check if table is hidden by direct hiding or schema filter
+        const isHiddenDirectly = hiddenTableIds?.includes(table.id) ?? false;
+        const isHiddenBySchema = !shouldShowTablesBySchemaFilter(
+            table,
+            filteredSchemas
+        );
+        const isHidden = isHiddenDirectly || isHiddenBySchema;
+
+        // If table is hidden, remove it from any area
+        if (isHidden) {
+            if (table.parentAreaId !== null) {
+                return {
+                    ...table,
+                    parentAreaId: null,
+                };
+            }
+            return table;
+        }
+
+        // For visible tables, find containing area as before
         const containingArea = findContainingArea(table, areas);
         const newParentAreaId = containingArea?.id || null;
 

src/pages/editor-page/canvas/canvas-filter/canvas-filter.tsx

@@ -5,26 +5,40 @@ import React, {
     useEffect,
     useRef,
 } from 'react';
-import { X, Search, Eye, EyeOff, Database, Table, Funnel } from 'lucide-react';
+import {
+    X,
+    Search,
+    Eye,
+    EyeOff,
+    Database,
+    Table,
+    Funnel,
+    Layers,
+} from 'lucide-react';
 import { useChartDB } from '@/hooks/use-chartdb';
 import { useTranslation } from 'react-i18next';
 import { Button } from '@/components/button/button';
 import { Input } from '@/components/input/input';
 import { shouldShowTableSchemaBySchemaFilter } from '@/lib/domain/db-table';
-import { schemaNameToSchemaId } from '@/lib/domain/db-schema';
+import {
+    schemaNameToSchemaId,
+    databasesWithSchemas,
+} from '@/lib/domain/db-schema';
 import { defaultSchemas } from '@/lib/data/default-schemas';
 import { useReactFlow } from '@xyflow/react';
 import { TreeView } from '@/components/tree-view/tree-view';
 import type { TreeNode } from '@/components/tree-view/tree';
 import { ScrollArea } from '@/components/scroll-area/scroll-area';
+import { ToggleGroup, ToggleGroupItem } from '@/components/toggle/toggle-group';
 
 export interface CanvasFilterProps {
     onClose: () => void;
 }
 
-type NodeType = 'schema' | 'table';
+type NodeType = 'schema' | 'table' | 'area';
 
 type SchemaContext = { name: string };
+type AreaContext = { id: string; name: string };
 type TableContext = {
     tableSchema?: string | null;
     hidden: boolean;
@@ -32,6 +46,7 @@ type TableContext = {
 
 type NodeContext = {
     schema: SchemaContext;
+    area: AreaContext;
     table: TableContext;
 };
 
@@ -51,12 +66,19 @@ export const CanvasFilter: React.FC<CanvasFilterProps> = ({ onClose }) => {
         removeHiddenTableId,
         filteredSchemas,
         filterSchemas,
+        areas,
     } = useChartDB();
     const { fitView, setNodes } = useReactFlow();
     const [searchQuery, setSearchQuery] = useState('');
     const [expanded, setExpanded] = useState<Record<string, boolean>>({});
     const [isFilterVisible, setIsFilterVisible] = useState(false);
+    const [groupBy, setGroupBy] = useState<'schema' | 'area'>('schema');
     const searchInputRef = useRef<HTMLInputElement>(null);
+    const supportsSchemas = useMemo(
+        () => databasesWithSchemas.includes(databaseType),
+        [databaseType]
+    );
+    const hasAreas = useMemo(() => areas.length > 0, [areas]);
 
     // Extract only the properties needed for tree data
     const relevantTableData = useMemo<RelevantTableData[]>(
@@ -71,6 +93,137 @@ export const CanvasFilter: React.FC<CanvasFilterProps> = ({ onClose }) => {
 
     // Convert tables to tree nodes
     const treeData = useMemo(() => {
+        if (groupBy === 'area' && hasAreas) {
+            // Group tables by area
+            const tablesByArea = new Map<string, RelevantTableData[]>();
+            const tablesWithoutArea: RelevantTableData[] = [];
+
+            // Create a map of area id to area
+            const areaMap = areas.reduce(
+                (acc, area) => {
+                    acc[area.id] = area;
+                    return acc;
+                },
+                {} as Record<string, (typeof areas)[0]>
+            );
+
+            relevantTableData.forEach((table) => {
+                const tableData = tables.find((t) => t.id === table.id);
+                if (
+                    tableData?.parentAreaId &&
+                    areaMap[tableData.parentAreaId]
+                ) {
+                    const areaId = tableData.parentAreaId;
+                    if (!tablesByArea.has(areaId)) {
+                        tablesByArea.set(areaId, []);
+                    }
+                    tablesByArea.get(areaId)!.push(table);
+                } else {
+                    tablesWithoutArea.push(table);
+                }
+            });
+
+            // Sort tables within each area
+            tablesByArea.forEach((tables) => {
+                tables.sort((a, b) => a.name.localeCompare(b.name));
+            });
+            tablesWithoutArea.sort((a, b) => a.name.localeCompare(b.name));
+
+            // Convert to tree nodes
+            const nodes: TreeNode<NodeType, NodeContext>[] = [];
+
+            // Sort all areas by order or name (including empty ones)
+            const sortedAreas = areas.sort((a, b) => {
+                if (a.order !== undefined && b.order !== undefined) {
+                    return a.order - b.order;
+                }
+                return a.name.localeCompare(b.name);
+            });
+
+            sortedAreas.forEach((area) => {
+                const areaTables = tablesByArea.get(area.id) || [];
+                const areaNode: TreeNode<NodeType, NodeContext> = {
+                    id: `area-${area.id}`,
+                    name: `${area.name} (${areaTables.length})`,
+                    type: 'area',
+                    isFolder: true,
+                    icon: Layers,
+                    context: { id: area.id, name: area.name },
+                    children: areaTables.map(
+                        (table): TreeNode<NodeType, NodeContext> => {
+                            const tableHidden =
+                                hiddenTableIds?.includes(table.id) ?? false;
+                            const visibleBySchema =
+                                shouldShowTableSchemaBySchemaFilter({
+                                    tableSchema: table.schema,
+                                    filteredSchemas,
+                                });
+                            const hidden = tableHidden || !visibleBySchema;
+
+                            return {
+                                id: table.id,
+                                name: table.name,
+                                type: 'table',
+                                isFolder: false,
+                                icon: Table,
+                                context: {
+                                    tableSchema: table.schema,
+                                    hidden: tableHidden,
+                                },
+                                className: hidden ? 'opacity-50' : '',
+                            };
+                        }
+                    ),
+                };
+                nodes.push(areaNode);
+            });
+
+            // Add "No Area" group if there are tables without areas
+            if (tablesWithoutArea.length > 0) {
+                const noAreaNode: TreeNode<NodeType, NodeContext> = {
+                    id: 'area-no-area',
+                    name: `${t('canvas_filter.no_area')} (${tablesWithoutArea.length})`,
+                    type: 'area',
+                    isFolder: true,
+                    icon: Layers,
+                    context: {
+                        id: 'no-area',
+                        name: t('canvas_filter.no_area'),
+                    },
+                    className: 'opacity-75',
+                    children: tablesWithoutArea.map(
+                        (table): TreeNode<NodeType, NodeContext> => {
+                            const tableHidden =
+                                hiddenTableIds?.includes(table.id) ?? false;
+                            const visibleBySchema =
+                                shouldShowTableSchemaBySchemaFilter({
+                                    tableSchema: table.schema,
+                                    filteredSchemas,
+                                });
+                            const hidden = tableHidden || !visibleBySchema;
+
+                            return {
+                                id: table.id,
+                                name: table.name,
+                                type: 'table',
+                                isFolder: false,
+                                icon: Table,
+                                context: {
+                                    tableSchema: table.schema,
+                                    hidden: tableHidden,
+                                },
+                                className: hidden ? 'opacity-50' : '',
+                            };
+                        }
+                    ),
+                };
+                nodes.push(noAreaNode);
+            }
+
+            return nodes;
+        }
+
+        // Default schema grouping
         // Group tables by schema
         const tablesBySchema = new Map<string, RelevantTableData[]>();
 
@@ -134,16 +287,36 @@ export const CanvasFilter: React.FC<CanvasFilterProps> = ({ onClose }) => {
         });
 
         return nodes;
-    }, [relevantTableData, databaseType, hiddenTableIds, filteredSchemas]);
+    }, [
+        relevantTableData,
+        databaseType,
+        hiddenTableIds,
+        filteredSchemas,
+        groupBy,
+        hasAreas,
+        areas,
+        tables,
+        t,
+    ]);
 
-    // Initialize expanded state with all schemas expanded
-    useMemo(() => {
-        const initialExpanded: Record<string, boolean> = {};
-        treeData.forEach((node) => {
-            initialExpanded[node.id] = true;
+    // Initialize expanded state with all schemas expanded only when grouping changes
+    useEffect(() => {
+        setExpanded((prevExpanded) => {
+            const newExpanded: Record<string, boolean> = {};
+
+            // Preserve existing expanded states for nodes that still exist
+            treeData.forEach((node) => {
+                if (node.id in prevExpanded) {
+                    newExpanded[node.id] = prevExpanded[node.id];
+                } else {
+                    // Default new nodes to expanded
+                    newExpanded[node.id] = true;
+                }
+            });
+
+            return newExpanded;
         });
-        setExpanded(initialExpanded);
-    }, [treeData]);
+    }, [groupBy, treeData]);
 
     // Filter tree data based on search query
     const filteredTreeData: TreeNode<NodeType, NodeContext>[] = useMemo(() => {
@@ -219,6 +392,45 @@ export const CanvasFilter: React.FC<CanvasFilterProps> = ({ onClose }) => {
     // Render component that's always visible (eye indicator)
     const renderActions = useCallback(
         (node: TreeNode<NodeType, NodeContext>) => {
+            if (node.type === 'area') {
+                return (
+                    <Button
+                        variant="ghost"
+                        size="sm"
+                        className="size-7 h-fit p-0"
+                        disabled={!node.children || node.children.length === 0}
+                        onClick={(e) => {
+                            e.stopPropagation();
+                            // Toggle all tables in this area
+                            const allHidden =
+                                (node.children?.length > 0 &&
+                                    node.children?.every((child) =>
+                                        hiddenTableIds?.includes(child.id)
+                                    )) ||
+                                false;
+
+                            node.children?.forEach((child) => {
+                                if (child.type === 'table') {
+                                    if (allHidden) {
+                                        removeHiddenTableId(child.id);
+                                    } else {
+                                        addHiddenTableId(child.id);
+                                    }
+                                }
+                            });
+                        }}
+                    >
+                        {node.children?.every((child) =>
+                            hiddenTableIds?.includes(child.id)
+                        ) ? (
+                            <EyeOff className="size-3.5 text-muted-foreground" />
+                        ) : (
+                            <Eye className="size-3.5" />
+                        )}
+                    </Button>
+                );
+            }
+
             if (node.type === 'schema') {
                 const schemaContext = node.context as SchemaContext;
                 const schemaId = schemaNameToSchemaId(schemaContext.name);
@@ -283,35 +495,12 @@ export const CanvasFilter: React.FC<CanvasFilterProps> = ({ onClose }) => {
                         className="size-7 h-fit p-0"
                         onClick={(e) => {
                             e.stopPropagation();
-                            if (!visibleBySchema && tableSchema) {
-                                // Unhide schema and hide all other tables
-                                const schemaId =
-                                    schemaNameToSchemaId(tableSchema);
-                                filterSchemas([
-                                    ...(filteredSchemas ?? []),
-                                    schemaId,
-                                ]);
-                                const schemaNode = treeData.find(
-                                    (s) =>
-                                        (s.context as SchemaContext).name ===
-                                        tableSchema
-                                );
-                                if (schemaNode) {
-                                    schemaNode.children?.forEach((child) => {
-                                        if (
-                                            child.id !== tableId &&
-                                            !hiddenTableIds?.includes(child.id)
-                                        ) {
-                                            addHiddenTableId(child.id);
-                                        }
-                                    });
-                                }
-                            } else {
-                                toggleTableVisibility(tableId, !hidden);
-                            }
+                            // Simply toggle the table visibility
+                            toggleTableVisibility(tableId, !hidden);
                         }}
+                        disabled={!visibleBySchema}
                     >
-                        {hidden || !visibleBySchema ? (
+                        {hidden ? (
                             <EyeOff className="size-3.5 text-muted-foreground" />
                         ) : (
                             <Eye className="size-3.5" />
@@ -326,7 +515,6 @@ export const CanvasFilter: React.FC<CanvasFilterProps> = ({ onClose }) => {
             toggleTableVisibility,
             filteredSchemas,
             filterSchemas,
-            treeData,
             hiddenTableIds,
             addHiddenTableId,
             removeHiddenTableId,
@@ -403,6 +591,42 @@ export const CanvasFilter: React.FC<CanvasFilterProps> = ({ onClose }) => {
                         className="h-full pl-9"
                     />
                 </div>
+                {hasAreas && (
+                    <div className="mt-2">
+                        <ToggleGroup
+                            type="single"
+                            value={groupBy}
+                            onValueChange={(value) => {
+                                if (value)
+                                    setGroupBy(value as 'schema' | 'area');
+                            }}
+                            className="w-full justify-start"
+                        >
+                            <ToggleGroupItem
+                                value="schema"
+                                aria-label={
+                                    supportsSchemas
+                                        ? 'Group by schema'
+                                        : 'Default'
+                                }
+                                className="h-8 flex-1 gap-1.5 text-xs"
+                            >
+                                <Database className="size-3.5" />
+                                {supportsSchemas
+                                    ? t('canvas_filter.group_by_schema')
+                                    : t('canvas_filter.default_grouping')}
+                            </ToggleGroupItem>
+                            <ToggleGroupItem
+                                value="area"
+                                aria-label="Group by area"
+                                className="h-8 flex-1 gap-1.5 text-xs"
+                            >
+                                <Layers className="size-3.5" />
+                                {t('canvas_filter.group_by_area')}
+                            </ToggleGroupItem>
+                        </ToggleGroup>
+                    </div>
+                )}
             </div>
 
             {/* Table Tree */}

src/pages/editor-page/canvas/canvas.tsx

@@ -144,15 +144,48 @@ const tableToTableNode = (
     };
 };
 
-const areaToAreaNode = (area: Area): AreaNodeType => ({
-    id: area.id,
-    type: 'area',
-    position: { x: area.x, y: area.y },
-    data: { area },
-    width: area.width,
-    height: area.height,
-    zIndex: -10,
-});
+const areaToAreaNode = (
+    area: Area,
+    tables: DBTable[],
+    hiddenTableIds?: string[],
+    filteredSchemas?: string[]
+): AreaNodeType => {
+    // Check if all tables in this area are hidden
+    const tablesInArea = tables.filter(
+        (table) => table.parentAreaId === area.id
+    );
+
+    // Don't hide area if it has no tables (empty area)
+    if (tablesInArea.length === 0) {
+        return {
+            id: area.id,
+            type: 'area',
+            position: { x: area.x, y: area.y },
+            data: { area },
+            width: area.width,
+            height: area.height,
+            zIndex: -10,
+            hidden: false,
+        };
+    }
+
+    const allTablesHidden = tablesInArea.every(
+        (table) =>
+            hiddenTableIds?.includes(table.id) ||
+            !shouldShowTablesBySchemaFilter(table, filteredSchemas)
+    );
+
+    return {
+        id: area.id,
+        type: 'area',
+        position: { x: area.x, y: area.y },
+        data: { area },
+        width: area.width,
+        height: area.height,
+        zIndex: -10,
+        hidden: allTablesHidden,
+    };
+};
 
 export interface CanvasProps {
     initialTables: DBTable[];
@@ -415,7 +448,14 @@ export const Canvas: React.FC<CanvasProps> = ({ initialTables }) => {
                         },
                     };
                 }),
-                ...areas.map(areaToAreaNode),
+                ...areas.map((area) =>
+                    areaToAreaNode(
+                        area,
+                        tables,
+                        hiddenTableIds,
+                        filteredSchemas
+                    )
+                ),
             ];
 
             // Check if nodes actually changed
@@ -465,7 +505,12 @@ export const Canvas: React.FC<CanvasProps> = ({ initialTables }) => {
 
     useEffect(() => {
         const checkParentAreas = debounce(() => {
-            const updatedTables = updateTablesParentAreas(tables, areas);
+            const updatedTables = updateTablesParentAreas(
+                tables,
+                areas,
+                hiddenTableIds,
+                filteredSchemas
+            );
             const needsUpdate: Array<{
                 id: string;
                 parentAreaId: string | null;
@@ -505,7 +550,14 @@ export const Canvas: React.FC<CanvasProps> = ({ initialTables }) => {
         }, 300);
 
         checkParentAreas();
-    }, [tablePositions, areas, updateTablesState, tables]);
+    }, [
+        tablePositions,
+        areas,
+        updateTablesState,
+        tables,
+        hiddenTableIds,
+        filteredSchemas,
+    ]);
 
     const onConnectHandler = useCallback(
         async (params: AddEdgeParams) => {

src/pages/editor-page/side-panel/tables-section/table-list/table-list.tsx

@@ -17,13 +17,22 @@ import {
     verticalListSortingStrategy,
 } from '@dnd-kit/sortable';
 import { useChartDB } from '@/hooks/use-chartdb.ts';
+import type { Area } from '@/lib/domain/area';
+import { useTranslation } from 'react-i18next';
 
 export interface TableListProps {
     tables: DBTable[];
+    groupBy?: 'schema' | 'area';
+    areas?: Area[];
 }
 
-export const TableList: React.FC<TableListProps> = ({ tables }) => {
+export const TableList: React.FC<TableListProps> = ({
+    tables,
+    groupBy = 'schema',
+    areas = [],
+}) => {
     const { updateTablesState } = useChartDB();
+    const { t } = useTranslation();
 
     const { openTableFromSidebar, openedTableInSidebar } = useLayout();
     const lastOpenedTable = React.useRef<string | null>(null);
@@ -87,62 +96,134 @@ export const TableList: React.FC<TableListProps> = ({ tables }) => {
         }
     }, [scrollToTable, openedTableInSidebar]);
 
+    const sortTables = useCallback((tablesToSort: DBTable[]) => {
+        return tablesToSort.sort((table1: DBTable, table2: DBTable) => {
+            // if one table has order and the other doesn't, the one with order should come first
+            if (table1.order && table2.order === undefined) {
+                return -1;
+            }
+
+            if (table1.order === undefined && table2.order) {
+                return 1;
+            }
+
+            // if both tables have order, sort by order
+            if (table1.order !== undefined && table2.order !== undefined) {
+                return (table1.order ?? 0) - (table2.order ?? 0);
+            }
+
+            // if both tables don't have order, sort by name
+            if (table1.isView === table2.isView) {
+                // Both are either tables or views, so sort alphabetically by name
+                return table1.name.localeCompare(table2.name);
+            }
+            // If one is a view and the other is not, put tables first
+            return table1.isView ? 1 : -1;
+        });
+    }, []);
+
+    const groupedTables = useMemo(() => {
+        if (groupBy === 'area') {
+            // Group tables by area
+            const tablesWithArea: Record<string, DBTable[]> = {};
+            const tablesWithoutArea: DBTable[] = [];
+
+            // Create a map of area id to area name
+            const areaMap = areas.reduce(
+                (acc, area) => {
+                    acc[area.id] = area.name;
+                    return acc;
+                },
+                {} as Record<string, string>
+            );
+
+            tables.forEach((table) => {
+                if (table.parentAreaId && areaMap[table.parentAreaId]) {
+                    if (!tablesWithArea[table.parentAreaId]) {
+                        tablesWithArea[table.parentAreaId] = [];
+                    }
+                    tablesWithArea[table.parentAreaId].push(table);
+                } else {
+                    tablesWithoutArea.push(table);
+                }
+            });
+
+            // Sort areas by their order or name
+            const sortedAreas = areas
+                .filter((area) => tablesWithArea[area.id])
+                .sort((a, b) => {
+                    if (a.order !== undefined && b.order !== undefined) {
+                        return a.order - b.order;
+                    }
+                    return a.name.localeCompare(b.name);
+                });
+
+            return [
+                ...sortedAreas.map((area) => ({
+                    id: area.id,
+                    name: area.name,
+                    tables: sortTables(tablesWithArea[area.id]),
+                })),
+                ...(tablesWithoutArea.length > 0
+                    ? [
+                          {
+                              id: 'no-area',
+                              name: t('side_panel.tables_section.no_area'),
+                              tables: sortTables(tablesWithoutArea),
+                          },
+                      ]
+                    : []),
+            ];
+        }
+
+        // Default - no grouping, just return all tables as one group
+        return [
+            {
+                id: 'all',
+                name: '',
+                tables: sortTables(tables),
+            },
+        ];
+    }, [tables, groupBy, areas, sortTables, t]);
+
     return (
-        <Accordion
-            type="single"
-            collapsible
-            className="flex w-full flex-col gap-1"
-            value={openedTableInSidebar}
-            onValueChange={openTableFromSidebar}
-            onAnimationEnd={handleScrollToTable}
-        >
-            <DndContext
-                sensors={sensors}
-                collisionDetection={closestCenter}
-                onDragEnd={handleDragEnd}
-            >
-                <SortableContext
-                    items={tables}
-                    strategy={verticalListSortingStrategy}
-                >
-                    {tables
-                        .sort((table1: DBTable, table2: DBTable) => {
-                            // if one table has order and the other doesn't, the one with order should come first
-                            if (table1.order && table2.order === undefined) {
-                                return -1;
-                            }
-
-                            if (table1.order === undefined && table2.order) {
-                                return 1;
-                            }
-
-                            // if both tables have order, sort by order
-                            if (
-                                table1.order !== undefined &&
-                                table2.order !== undefined
-                            ) {
-                                return (
-                                    (table1.order ?? 0) - (table2.order ?? 0)
-                                );
-                            }
-
-                            // if both tables don't have order, sort by name
-                            if (table1.isView === table2.isView) {
-                                // Both are either tables or views, so sort alphabetically by name
-                                return table1.name.localeCompare(table2.name);
-                            }
-                            // If one is a view and the other is not, put tables first
-                            return table1.isView ? 1 : -1;
-                        })
-                        .map((table) => (
-                            <TableListItem
-                                key={table.id}
-                                table={table}
-                                ref={refs[table.id]}
-                            />
-                        ))}
-                </SortableContext>
-            </DndContext>
-        </Accordion>
+        <div className="flex flex-col gap-3">
+            {groupedTables.map((group) => (
+                <div key={group.id}>
+                    {group.name && (
+                        <div className="mb-2 px-2 text-xs font-medium text-muted-foreground">
+                            {group.name}
+                        </div>
+                    )}
+                    <Accordion
+                        type="single"
+                        collapsible
+                        className="flex w-full flex-col gap-1"
+                        value={openedTableInSidebar}
+                        onValueChange={openTableFromSidebar}
+                        onAnimationEnd={handleScrollToTable}
+                    >
+                        <DndContext
+                            sensors={sensors}
+                            collisionDetection={closestCenter}
+                            onDragEnd={handleDragEnd}
+                        >
+                            <SortableContext
+                                items={group.tables}
+                                strategy={verticalListSortingStrategy}
+                            >
+                                {group.tables.map((table) => (
+                                    <TableListItem
+                                        key={table.id}
+                                        table={table}
+                                        ref={refs[table.id]}
+                                    />
+                                ))}
+                            </SortableContext>
+                        </DndContext>
+                    </Accordion>
+                </div>
+            ))}
+        </div>
     );
 };

src/pages/editor-page/side-panel/tables-section/tables-section.tsx

@@ -1,7 +1,7 @@
 import React, { useCallback, useMemo, useState } from 'react';
 import { TableList } from './table-list/table-list';
 import { Button } from '@/components/button/button';
-import { Table, List, X, Code } from 'lucide-react';
+import { Table, List, X, Code, Layers, Database } from 'lucide-react';
 import { Input } from '@/components/input/input';
 import type { DBTable } from '@/lib/domain/db-table';
 import { shouldShowTablesBySchemaFilter } from '@/lib/domain/db-table';
@@ -21,18 +21,32 @@ import { TableDBML } from './table-dbml/table-dbml';
 import { useHotkeys } from 'react-hotkeys-hook';
 import { getOperatingSystem } from '@/lib/utils';
 import type { DBSchema } from '@/lib/domain';
+import { ToggleGroup, ToggleGroupItem } from '@/components/toggle/toggle-group';
+import { databasesWithSchemas } from '@/lib/domain/db-schema';
 
 export interface TablesSectionProps {}
 
 export const TablesSection: React.FC<TablesSectionProps> = () => {
-    const { createTable, tables, filteredSchemas, schemas } = useChartDB();
+    const {
+        createTable,
+        tables,
+        filteredSchemas,
+        schemas,
+        areas,
+        databaseType,
+    } = useChartDB();
     const { openTableSchemaDialog } = useDialog();
     const viewport = useViewport();
     const { t } = useTranslation();
     const { openTableFromSidebar } = useLayout();
     const [filterText, setFilterText] = React.useState('');
     const [showDBML, setShowDBML] = useState(false);
+    const [groupBy, setGroupBy] = useState<'schema' | 'area'>('schema');
     const filterInputRef = React.useRef<HTMLInputElement>(null);
+    const supportsSchemas = useMemo(
+        () => databasesWithSchemas.includes(databaseType),
+        [databaseType]
+    );
 
     const filteredTables = useMemo(() => {
         const filterTableName: (table: DBTable) => boolean = (table) =>
@@ -162,6 +176,37 @@ export const TablesSection: React.FC<TablesSectionProps> = () => {
                     {t('side_panel.tables_section.add_table')}
                 </Button>
             </div>
+            <div className="mb-2">
+                <ToggleGroup
+                    type="single"
+                    value={groupBy}
+                    onValueChange={(value) => {
+                        if (value) setGroupBy(value as 'schema' | 'area');
+                    }}
+                    className="w-full justify-start"
+                >
+                    <ToggleGroupItem
+                        value="schema"
+                        aria-label={
+                            supportsSchemas ? 'Group by schema' : 'Default'
+                        }
+                        className="h-8 flex-1 gap-1.5 text-xs"
+                    >
+                        <Database className="size-3.5" />
+                        {supportsSchemas
+                            ? t('side_panel.tables_section.group_by_schema')
+                            : t('side_panel.tables_section.default_grouping')}
+                    </ToggleGroupItem>
+                    <ToggleGroupItem
+                        value="area"
+                        aria-label="Group by area"
+                        className="h-8 flex-1 gap-1.5 text-xs"
+                    >
+                        <Layers className="size-3.5" />
+                        {t('side_panel.tables_section.group_by_area')}
+                    </ToggleGroupItem>
+                </ToggleGroup>
+            </div>
             <div className="flex flex-1 flex-col overflow-hidden">
                 {showDBML ? (
                     <TableDBML filteredTables={filteredTables} />
@@ -193,7 +238,11 @@ export const TablesSection: React.FC<TablesSectionProps> = () => {
                                 </Button>
                             </div>
                         ) : (
-                            <TableList tables={filteredTables} />
+                            <TableList
+                                tables={filteredTables}
+                                groupBy={groupBy}
+                                areas={areas}
+                            />
                         )}
                     </ScrollArea>
                 )}