select page by row_number for MS SQL 2008 #93

packages/datalib/src/FormViewDisplay.ts

@@ -1,6 +1,14 @@
 import _ from 'lodash';
 import { GridConfig, GridCache, GridConfigColumns, createGridCache, GroupFunc } from './GridConfig';
-import { ForeignKeyInfo, TableInfo, ColumnInfo, EngineDriver, NamedObjectInfo, DatabaseInfo } from 'dbgate-types';
+import {
+  ForeignKeyInfo,
+  TableInfo,
+  ColumnInfo,
+  EngineDriver,
+  NamedObjectInfo,
+  DatabaseInfo,
+  SqlDialect,
+} from 'dbgate-types';
 import { parseFilter, getFilterType, getFilterValueExpression } from 'dbgate-filterparser';
 import { filterName } from './filterName';
 import { ChangeSetFieldDefinition, ChangeSetRowDefinition } from './ChangeSet';
@@ -12,6 +20,7 @@ export class FormViewDisplay {
   isLoadedCorrectly = true;
   columns: DisplayColumn[];
   public baseTable: TableInfo;
+  dialect: SqlDialect;
 
   constructor(
     public config: GridConfig,
@@ -19,8 +28,11 @@ export class FormViewDisplay {
     public cache: GridCache,
     protected setCache: ChangeCacheFunc,
     public driver?: EngineDriver,
-    public dbinfo: DatabaseInfo = null
+    public dbinfo: DatabaseInfo = null,
-  ) {}
+    public serverVersion = null
+  ) {
+    this.dialect = (driver?.dialectByVersion && driver?.dialectByVersion(serverVersion)) || driver?.dialect;
+  }
 
   addFilterColumn(column) {
     if (!column) return;

packages/datalib/src/GridDisplay.ts

@@ -8,6 +8,7 @@ import {
   NamedObjectInfo,
   DatabaseInfo,
   CollectionInfo,
+  SqlDialect,
 } from 'dbgate-types';
 import { parseFilter, getFilterType } from 'dbgate-filterparser';
 import { filterName } from './filterName';
@@ -60,8 +61,12 @@ export abstract class GridDisplay {
     public cache: GridCache,
     protected setCache: ChangeCacheFunc,
     public driver?: EngineDriver,
-    public dbinfo: DatabaseInfo = null
+    public dbinfo: DatabaseInfo = null,
-  ) {}
+    public serverVersion = null
+  ) {
+    this.dialect = (driver?.dialectByVersion && driver?.dialectByVersion(serverVersion)) || driver?.dialect;
+  }
+  dialect: SqlDialect;
   columns: DisplayColumn[];
   baseTable?: TableInfo;
   baseCollection?: CollectionInfo;
@@ -460,12 +465,75 @@ export abstract class GridDisplay {
     return select;
   }
 
+  getRowNumberOverSelect(select: Select, offset: number, count: number): Select {
+    const innerSelect: Select = {
+      commandType: 'select',
+      from: select.from,
+      where: select.where,
+      columns: [
+        ...select.columns,
+        {
+          alias: '_rowNumber',
+          exprType: 'rowNumber',
+          orderBy: select.orderBy
+            ? select.orderBy.map(x =>
+                x.exprType != 'column'
+                  ? x
+                  : x.source
+                  ? x
+                  : {
+                      ...x,
+                      source: { alias: 'basetbl' },
+                    }
+              )
+            : [
+                {
+                  ...select.columns[0],
+                  direction: 'ASC',
+                },
+              ],
+        },
+      ],
+    };
+
+    const res: Select = {
+      commandType: 'select',
+      selectAll: true,
+      from: {
+        subQuery: innerSelect,
+        alias: '_RowNumberResult',
+      },
+      where: {
+        conditionType: 'between',
+        expr: {
+          exprType: 'column',
+          columnName: '_RowNumber',
+          source: {
+            alias: '_RowNumberResult',
+          },
+        },
+        left: {
+          exprType: 'value',
+          value: offset + 1,
+        },
+        right: {
+          exprType: 'value',
+          value: offset + count,
+        },
+      },
+    };
+
+    return res;
+  }
+
   getPageQuery(offset: number, count: number) {
     if (!this.driver) return null;
-    const select = this.createSelect();
+    let select = this.createSelect();
     if (!select) return null;
-    if (this.driver.dialect.rangeSelect) select.range = { offset: offset, limit: count };
+    if (this.dialect.rangeSelect) select.range = { offset: offset, limit: count };
-    else if (this.driver.dialect.limitSelect) select.topRecords = count;
+    else if (this.dialect.rowNumberOverPaging && offset > 0)
+      select = this.getRowNumberOverSelect(select, offset, count);
+    else if (this.dialect.limitSelect) select.topRecords = count;
     const sql = treeToSql(this.driver, select, dumpSqlSelect);
     return sql;
   }

packages/datalib/src/TableFormViewDisplay.ts

@@ -29,9 +29,10 @@ export class TableFormViewDisplay extends FormViewDisplay {
     cache: GridCache,
     setCache: ChangeCacheFunc,
     dbinfo: DatabaseInfo,
-    displayOptions
+    displayOptions,
+    serverVersion
   ) {
-    super(config, setConfig, cache, setCache, driver, dbinfo);
+    super(config, setConfig, cache, setCache, driver, dbinfo, serverVersion);
     this.gridDisplay = new TableGridDisplay(
       tableName,
       driver,
@@ -40,7 +41,8 @@ export class TableFormViewDisplay extends FormViewDisplay {
       cache,
       setCache,
       dbinfo,
-      displayOptions
+      displayOptions,
+      serverVersion
     );
     this.gridDisplay.addAllExpandedColumnsToSelected = true;
 

packages/datalib/src/TableGridDisplay.ts

@@ -18,9 +18,10 @@ export class TableGridDisplay extends GridDisplay {
     cache: GridCache,
     setCache: ChangeCacheFunc,
     dbinfo: DatabaseInfo,
-    public displayOptions: any
+    public displayOptions: any,
+    serverVersion
   ) {
-    super(config, setConfig, cache, setCache, driver, dbinfo);
+    super(config, setConfig, cache, setCache, driver, dbinfo, serverVersion);
 
     this.table = this.findTable(tableName);
     if (!this.table) {

packages/datalib/src/ViewGridDisplay.ts

@@ -10,9 +10,10 @@ export class ViewGridDisplay extends GridDisplay {
     config: GridConfig,
     setConfig: ChangeConfigFunc,
     cache: GridCache,
-    setCache: ChangeCacheFunc
+    setCache: ChangeCacheFunc,
+    serverVersion
   ) {
-    super(config, setConfig, cache, setCache, driver);
+    super(config, setConfig, cache, setCache, driver, serverVersion);
     this.columns = this.getDisplayColumns(view);
     this.filterable = true;
     this.sortable = true;

packages/sqltree/src/dumpSqlCondition.ts

@@ -62,5 +62,12 @@ export function dumpSqlCondition(dmp: SqlDumper, condition: Condition) {
       dumpSqlSelect(dmp, condition.subQuery);
       dmp.put(')');
       break;
+    case 'between':
+      dumpSqlExpression(dmp, condition.expr);
+      dmp.put(' ^between ');
+      dumpSqlExpression(dmp, condition.left);
+      dmp.put(' ^and ');
+      dumpSqlExpression(dmp, condition.right);
+      break;
   }
 }

packages/sqltree/src/dumpSqlExpression.ts

@@ -38,5 +38,14 @@ export function dumpSqlExpression(dmp: SqlDumper, expr: Expression) {
     case 'transform':
       dmp.transform(expr.transform, () => dumpSqlExpression(dmp, expr.expr));
       break;
+
+    case 'rowNumber':
+      dmp.put(" ^row_number() ^over (^order ^by ");
+      dmp.putCollection(', ', expr.orderBy, x => {
+        dumpSqlExpression(dmp, x);
+        dmp.put(' %k', x.direction);
+      });
+      dmp.put(")");
+      break;
   }
 }

packages/sqltree/src/types.ts

@@ -92,6 +92,13 @@ export interface NotExistsCondition {
   subQuery: Select;
 }
 
+export interface BetweenCondition {
+  conditionType: 'between';
+  expr: Expression;
+  left: Expression;
+  right: Expression;
+}
+
 export type Condition =
   | BinaryCondition
   | NotCondition
@@ -99,7 +106,8 @@ export type Condition =
   | CompoudCondition
   | LikeCondition
   | ExistsCondition
-  | NotExistsCondition;
+  | NotExistsCondition
+  | BetweenCondition;
 
 export interface Source {
   name?: NamedObjectInfo;
@@ -153,13 +161,19 @@ export interface TranformExpression {
   transform: TransformType;
 }
 
+export interface RowNumberExpression {
+  exprType: 'rowNumber';
+  orderBy: OrderByExpression[];
+}
+
 export type Expression =
   | ColumnRefExpression
   | ValueExpression
   | PlaceholderExpression
   | RawExpression
   | CallExpression
-  | TranformExpression;
+  | TranformExpression
+  | RowNumberExpression;
 export type OrderByExpression = Expression & { direction: 'ASC' | 'DESC' };
 
 export type ResultField = Expression & { alias?: string };

packages/types/dialect.d.ts

@@ -1,6 +1,7 @@
 export interface SqlDialect {
   rangeSelect?: boolean;
   limitSelect?: boolean;
+  rowNumberOverPaging?: boolean;
   stringEscapeChar: string;
   offsetFetchRangeSyntax?: boolean;
   quoteIdentifier(s: string): string;

packages/types/engines.d.ts

@@ -61,6 +61,7 @@ export interface EngineDriver {
   analyseFull(pool: any): Promise<DatabaseInfo>;
   analyseIncremental(pool: any, structure: DatabaseInfo): Promise<DatabaseInfo>;
   dialect: SqlDialect;
+  dialectByVersion(version): SqlDialect;
   createDumper(): SqlDumper;
   getAuthTypes(): EngineAuthType[];
   readCollection(pool: any, options: ReadCollectionOptions): Promise<any>;

packages/web/src/datagrid/TableDataGrid.svelte

@@ -43,7 +43,7 @@
 
   $: connection = useConnectionInfo({ conid });
   $: dbinfo = useDatabaseInfo({ conid, database });
-  // $: serverVersion = useDatabaseServerVersion({ conid, database });
+  $: serverVersion = useDatabaseServerVersion({ conid, database });
 
   // $: console.log('serverVersion', $serverVersion);
 
@@ -53,7 +53,8 @@
 
   // $: console.log('display', display);
 
-  $: display = connection
+  $: display =
+    connection && $serverVersion
       ? new TableGridDisplay(
           { schemaName, pureName },
           findEngineDriver($connection, $extensions),
@@ -62,11 +63,13 @@
           cache,
           setCache,
           $dbinfo,
-        { showHintColumns: getBoolSettingsValue('dataGrid.showHintColumns', true) }
+          { showHintColumns: getBoolSettingsValue('dataGrid.showHintColumns', true) },
+          $serverVersion
         )
       : null;
 
-  $: formDisplay = connection
+  $: formDisplay =
+    connection && $serverVersion
       ? new TableFormViewDisplay(
           { schemaName, pureName },
           findEngineDriver($connection, $extensions),
@@ -75,7 +78,8 @@
           cache,
           setCache,
           $dbinfo,
-        { showHintColumns: getBoolSettingsValue('dataGrid.showHintColumns', true) }
+          { showHintColumns: getBoolSettingsValue('dataGrid.showHintColumns', true) },
+          $serverVersion
         )
       : null;
 

packages/web/src/tabs/ViewDataTab.svelte

@@ -11,7 +11,7 @@
   import DataGrid from '../datagrid/DataGrid.svelte';
   import SqlDataGridCore from '../datagrid/SqlDataGridCore.svelte';
   import { extensions } from '../stores';
-  import { useConnectionInfo, useViewInfo } from '../utility/metadataLoaders';
+  import { useConnectionInfo, useDatabaseServerVersion, useViewInfo } from '../utility/metadataLoaders';
   import useGridConfig from '../utility/useGridConfig';
 
   export let tabid;
@@ -22,12 +22,13 @@
 
   $: connection = useConnectionInfo({ conid });
   $: viewInfo = useViewInfo({ conid, database, schemaName, pureName });
+  $: serverVersion = useDatabaseServerVersion({ conid, database });
 
   const config = useGridConfig(tabid);
   const cache = writable(createGridCache());
 
   $: display =
-    $viewInfo && $connection
+    $viewInfo && $connection && $serverVersion
       ? new ViewGridDisplay(
           $viewInfo,
           findEngineDriver($connection, $extensions),
@@ -35,7 +36,8 @@
           $config,
           config.update,
           $cache,
-          cache.update
+          cache.update,
+          $serverVersion
         )
       : null;
 </script>

plugins/dbgate-plugin-mssql/src/frontend/driver.js

@@ -6,6 +6,7 @@ const dialect = {
   limitSelect: true,
   rangeSelect: true,
   offsetFetchRangeSyntax: true,
+  rowNumberOverPaging: true,
   stringEscapeChar: "'",
   fallbackDataType: 'nvarchar(max)',
   explicitDropConstraint: false,
@@ -21,6 +22,16 @@ const driver = {
   ...driverBase,
   dumperClass: MsSqlDumper,
   dialect,
+  dialectByVersion(version) {
+    if (version && version.productVersionNumber < 11) {
+      return {
+        ...dialect,
+        rangeSelect: false,
+        offsetFetchRangeSyntax: false,
+      };
+    }
+    return dialect;
+  },
   engine: 'mssql@dbgate-plugin-mssql',
   title: 'Microsoft SQL Server',
   defaultPort: 1433,