driver commons refactor, default bulkinserter for mysql and postgres

packages/engines/default/createBulkInsertStreamBase.js

@@ -45,16 +45,32 @@ function createBulkInsertStreamBase(driver, stream, pool, name, options) {
       await driver.query(pool, `TRUNCATE TABLE ${fullNameQuoted}`);
     }
 
-    const respTemplate = await pool.request().query(`SELECT * FROM ${fullNameQuoted} WHERE 1=0`);
-    writable.templateColumns = respTemplate.recordset.toTable().columns;
-    // console.log('writable.templateColumns', writable.templateColumns);
-
     this.columnNames = _.intersection(
       structure.columns.map((x) => x.columnName),
       writable.structure.columns.map((x) => x.columnName)
     );
   };
 
+  writable.send = async () => {
+    const rows = writable.buffer;
+    writable.buffer = [];
+
+    const dmp = driver.createDumper();
+
+    dmp.putRaw(`INSERT INTO ${fullNameQuoted} (`);
+    dmp.putCollection(',', this.columnNames, (col) => dmp.putRaw(driver.dialect.quoteIdentifier(col)));
+    dmp.putRaw('\n');
+
+    let wasRow = false;
+    for (const row of rows) {
+      if (wasRow) dmp.putRaw(',\n');
+      dmp.putRaw('(');
+      dmp.putCollection(',', this.columnNames, (col) => dmp.putValue(row[col]));
+      dmp.putRaw(')');
+    }
+    await driver.query(pool, dmp.s);
+  };
+
   writable.sendIfFull = async () => {
     if (writable.buffer.length > 100) {
       await writable.send();

packages/engines/default/driverBase.js

@@ -0,0 +1,34 @@
+const createBulkInsertStreamBase = require('./createBulkInsertStreamBase');
+
+const driverBase = {
+  analyserClass: null,
+  dumperClass: null,
+
+  async analyseFull(pool) {
+    const analyser = new this.analyserClass(pool, this);
+    return analyser.fullAnalysis();
+  },
+  async analyseSingleObject(pool, name, typeField = 'tables') {
+    const analyser = new this.analyserClass(pool, this);
+    analyser.singleObjectFilter = { ...name, typeField };
+    const res = await analyser.fullAnalysis();
+    return res.tables[0];
+  },
+  analyseSingleTable(pool, name) {
+    return this.analyseSingleObject(pool, name, 'tables');
+  },
+  async analyseIncremental(pool, structure) {
+    const analyser = new this.analyserClass(pool, this);
+    return analyser.incrementalAnalysis(structure);
+  },
+  createDumper() {
+    return new this.dumperClass(this);
+  },
+  async writeTable(pool, name, options) {
+    const { stream, mssql } = pool._nativeModules;
+    // @ts-ignore
+    return createBulkInsertStreamBase(this, stream, pool, name, options);
+  },
+};
+
+module.exports = driverBase;

packages/engines/mssql/createBulkInsertStream.js

@@ -1,5 +1,3 @@
-const { prepareTableForImport } = require('@dbgate/tools');
-const _ = require('lodash');
 const createBulkInsertStreamBase = require('../default/createBulkInsertStreamBase');
 
 /**
@@ -12,6 +10,15 @@ function createBulkInsertStream(driver, mssql, stream, pool, name, options) {
   const fullName = name.schemaName ? `[${name.schemaName}].[${name.pureName}]` : name.pureName;
 
   writable.send = async () => {
+    if (!writable.templateColumns) {
+      const fullNameQuoted = name.schemaName
+        ? `${driver.dialect.quoteIdentifier(name.schemaName)}.${driver.dialect.quoteIdentifier(name.pureName)}`
+        : driver.dialect.quoteIdentifier(name.pureName);
+
+      const respTemplate = await pool.request().query(`SELECT * FROM ${fullNameQuoted} WHERE 1=0`);
+      writable.templateColumns = respTemplate.recordset.toTable().columns;
+    }
+
     const rows = writable.buffer;
     writable.buffer = [];
     const table = new mssql.Table(fullName);

packages/engines/mssql/index.js

@@ -2,7 +2,7 @@ const _ = require('lodash');
 const MsSqlAnalyser = require('./MsSqlAnalyser');
 const MsSqlDumper = require('./MsSqlDumper');
 const createBulkInsertStream = require('./createBulkInsertStream');
-const { analyseSingleObject } = require('../mysql');
+const driverBase = require('../default/driverBase');
 
 /** @type {import('@dbgate/types').SqlDialect} */
 const dialect = {
@@ -53,6 +53,9 @@ function extractColumns(columns) {
 
 /** @type {import('@dbgate/types').EngineDriver} */
 const driver = {
+  ...driverBase,
+  analyserClass: MsSqlAnalyser,
+  dumperClass: MsSqlDumper,
   async connect(nativeModules, { server, port, user, password, database }) {
     const pool = new nativeModules.mssql.ConnectionPool({
       server,
@@ -200,27 +203,6 @@ const driver = {
     const { rows } = await this.query(pool, 'SELECT name FROM sys.databases order by name');
     return rows;
   },
-  async analyseFull(pool) {
-    const analyser = new MsSqlAnalyser(pool, this);
-    return analyser.fullAnalysis();
-  },
-  async analyseSingleObject(pool, name, typeField = 'tables') {
-    const analyser = new MsSqlAnalyser(pool, this);
-    analyser.singleObjectFilter = { ...name, typeField };
-    const res = await analyser.fullAnalysis();
-    return res.tables[0];
-  },
-  // @ts-ignore
-  analyseSingleTable(pool, name) {
-    return this.analyseSingleObject(pool, name, 'tables');
-  },
-  async analyseIncremental(pool, structure) {
-    const analyser = new MsSqlAnalyser(pool, this);
-    return analyser.incrementalAnalysis(structure);
-  },
-  createDumper() {
-    return new MsSqlDumper(this);
-  },
   dialect,
   engine: 'mssql',
 };

packages/engines/mysql/index.js

@@ -1,3 +1,4 @@
+const driverBase = require('../default/driverBase');
 const MySqlAnalyser = require('./MySqlAnalyser');
 const MySqlDumper = require('./MySqlDumper');
 
@@ -21,6 +22,10 @@ function extractColumns(fields) {
 
 /** @type {import('@dbgate/types').EngineDriver} */
 const driver = {
+  ...driverBase,
+  analyserClass: MySqlAnalyser,
+  dumperClass: MySqlDumper,
+
   async connect(nativeModules, { server, port, user, password, database }) {
     const connection = nativeModules.mysql.createConnection({
       host: server,
@@ -116,31 +121,31 @@ const driver = {
     const version = rows[0].Value;
     return { version };
   },
-  async analyseFull(pool) {
-    const analyser = new MySqlAnalyser(pool, this);
-    return analyser.fullAnalysis();
-  },
-  async analyseIncremental(pool, structure) {
-    const analyser = new MySqlAnalyser(pool, this);
-    return analyser.incrementalAnalysis(structure);
-  },
-  async analyseSingleObject(pool, name, typeField = 'tables') {
-    const analyser = new MySqlAnalyser(pool, this);
-    analyser.singleObjectFilter = { ...name, typeField };
-    const res = await analyser.fullAnalysis();
-    return res.tables[0];
-  },
-  // @ts-ignore
-  analyseSingleTable(pool, name) {
-    return this.analyseSingleObject(pool, name, 'tables');
-  },
+  // async analyseFull(pool) {
+  //   const analyser = new MySqlAnalyser(pool, this);
+  //   return analyser.fullAnalysis();
+  // },
+  // async analyseIncremental(pool, structure) {
+  //   const analyser = new MySqlAnalyser(pool, this);
+  //   return analyser.incrementalAnalysis(structure);
+  // },
+  // async analyseSingleObject(pool, name, typeField = 'tables') {
+  //   const analyser = new MySqlAnalyser(pool, this);
+  //   analyser.singleObjectFilter = { ...name, typeField };
+  //   const res = await analyser.fullAnalysis();
+  //   return res.tables[0];
+  // },
+  // // @ts-ignore
+  // analyseSingleTable(pool, name) {
+  //   return this.analyseSingleObject(pool, name, 'tables');
+  // },
   async listDatabases(connection) {
     const { rows } = await this.query(connection, 'show databases');
     return rows.map((x) => ({ name: x.Database }));
   },
-  createDumper() {
-    return new MySqlDumper(this);
-  },
+  // createDumper() {
+  //   return new MySqlDumper(this);
+  // },
   dialect,
   engine: 'mysql',
 };

packages/engines/postgres/index.js

@@ -1,4 +1,5 @@
 const _ = require('lodash');
+const driverBase = require('../default/driverBase');
 const PostgreAnalyser = require('./PostgreAnalyser');
 const PostgreDumper = require('./PostgreDumper');
 
@@ -14,6 +15,10 @@ const dialect = {
 
 /** @type {import('@dbgate/types').EngineDriver} */
 const driver = {
+  ...driverBase,
+  analyserClass: PostgreAnalyser,
+  dumperClass: PostgreDumper,
+
   async connect(nativeModules, { server, port, user, password, database }) {
     const client = new nativeModules.pg.Client({
       host: server,
@@ -97,29 +102,29 @@ const driver = {
 
     return stream;
   },
-  async analyseSingleObject(pool, name, typeField = 'tables') {
-    const analyser = new PostgreAnalyser(pool, this);
-    analyser.singleObjectFilter = { ...name, typeField };
-    const res = await analyser.fullAnalysis();
-    return res.tables[0];
-  },
-  // @ts-ignore
-  analyseSingleTable(pool, name) {
-    return this.analyseSingleObject(pool, name, 'tables');
-  },
+  // async analyseSingleObject(pool, name, typeField = 'tables') {
+  //   const analyser = new PostgreAnalyser(pool, this);
+  //   analyser.singleObjectFilter = { ...name, typeField };
+  //   const res = await analyser.fullAnalysis();
+  //   return res.tables[0];
+  // },
+  // // @ts-ignore
+  // analyseSingleTable(pool, name) {
+  //   return this.analyseSingleObject(pool, name, 'tables');
+  // },
   async getVersion(client) {
     const { rows } = await this.query(client, 'SELECT version()');
     const { version } = rows[0];
     return { version };
   },
-  async analyseFull(pool) {
-    const analyser = new PostgreAnalyser(pool, this);
-    return analyser.fullAnalysis();
-  },
-  async analyseIncremental(pool, structure) {
-    const analyser = new PostgreAnalyser(pool, this);
-    return analyser.incrementalAnalysis(structure);
-  },
+  // async analyseFull(pool) {
+  //   const analyser = new PostgreAnalyser(pool, this);
+  //   return analyser.fullAnalysis();
+  // },
+  // async analyseIncremental(pool, structure) {
+  //   const analyser = new PostgreAnalyser(pool, this);
+  //   return analyser.incrementalAnalysis(structure);
+  // },
   async readQuery(client, sql, structure) {
     const query = new client._nativeModules.pgQueryStream(sql);
     const { stream } = client._nativeModules;
@@ -165,9 +170,9 @@ const driver = {
 
     return pass;
   },
-  createDumper() {
-    return new PostgreDumper(this);
-  },
+  // createDumper() {
+  //   return new PostgreDumper(this);
+  // },
   async listDatabases(client) {
     const { rows } = await this.query(client, 'SELECT datname AS name FROM pg_database WHERE datistemplate = false');
     return rows;

packages/types/engines.d.ts

@@ -43,6 +43,9 @@ export interface EngineDriver {
   analyseIncremental(pool: any, structure: DatabaseInfo): Promise<DatabaseInfo>;
   dialect: SqlDialect;
   createDumper(): SqlDumper;
+
+  analyserClass?: any;
+  dumperClass?: any;
 }
 
 export interface DatabaseModification {