fix(db): complete PostgreSQL integration in validation and cleaner services

OrderNumberResolver, validation, and cleaner services had incomplete
PostgreSQL support - they only handled SQL Server and MySQL, causing
PostgreSQL to fall through to MySQL code paths with invalid syntax
(backticks, ? placeholders) and missing schema.table name splitting.

Changes:
- Add PostgreSQL SQL generation ($N params, double-quoted identifiers)
  in OrderNumberResolver, validation-application-service,
  production-input-service, and validation-database
- Add PostgreSQL to database factory functions in validation-database
  and cleaner-application-service
- Add UPPER, LOWER, and 40+ common SQL functions to SQL_KEYWORDS to
  prevent prepareSql() from quoting them as identifiers

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/services/cleaner/cleaner-application-service.ts

@@ -1,11 +1,11 @@
 import type { WebContents } from 'electron'
-import type { MySqlService } from '../database/mysql'
+import type { IDatabaseService } from '../../types/database.types'
-import type { SqlServerService } from '../database/sql-server'
 import { ErpAuthService } from '../erp/erp-auth'
 import { CleanerService } from '../erp/cleaner'
 import { OrderNumberResolver } from '../erp/order-resolver'
 import { MySqlService as MySqlServiceImpl } from '../database/mysql'
 import { SqlServerService as SqlServerServiceImpl } from '../database/sql-server'
+import { PostgreSqlService as PostgreSqlServiceImpl } from '../database/postgresql'
 import { ConfigManager } from '../config/config-manager'
 import { ResultExporter } from '../excel/result-exporter'
 import { CleanerReportGenerator } from '../report/cleaner-report-generator'
@@ -26,13 +26,11 @@ import type {
 
 const log = createLogger('CleanerApplicationService')
 
-type DatabaseService = MySqlService | SqlServerService
-
 export class CleanerApplicationService {
   async runCleaner(eventSender: WebContents, input: CleanerInput): Promise<CleanerResult> {
     const startTime = Date.now()
     let authService: ErpAuthService | null = null
-    let dbService: DatabaseService | null = null
+    let dbService: IDatabaseService | null = null
 
     try {
       log.info('Fetching ERP configuration from database...')
@@ -46,7 +44,7 @@ export class CleanerApplicationService {
       const configManager = ConfigManager.getInstance()
       const dbType = configManager.getDatabaseType()
       log.info(
-        `Connecting to ${dbType === 'sqlserver' ? 'SQL Server' : 'MySQL'} for order resolution...`
+        `Connecting to ${dbType === 'sqlserver' ? 'SQL Server' : dbType === 'postgresql' ? 'PostgreSQL' : 'MySQL'} for order resolution...`
       )
 
       try {
@@ -201,7 +199,7 @@ export class CleanerApplicationService {
     }
   }
 
-  private async getDatabaseService(): Promise<DatabaseService> {
+  private async getDatabaseService(): Promise<IDatabaseService> {
     const configManager = ConfigManager.getInstance()
     const config = configManager.getConfig()
     const dbType = configManager.getDatabaseType()
@@ -223,6 +221,19 @@ export class CleanerApplicationService {
       return sqlServerService
     }
 
+    if (dbType === 'postgresql') {
+      const dbConfig = config.database.postgresql
+      const pgService = new PostgreSqlServiceImpl({
+        host: dbConfig.host,
+        port: dbConfig.port,
+        user: dbConfig.username,
+        password: dbConfig.password,
+        database: dbConfig.database
+      })
+      await pgService.connect()
+      return pgService
+    }
+
     const dbConfig = config.database.mysql
     const mysqlService = new MySqlServiceImpl({
       host: dbConfig.host,

src/main/services/database/postgresql.ts

@@ -238,6 +238,53 @@ const SQL_KEYWORDS = new Set([
   'FIRST',
   'LAST',
 
+  // ==================== Scalar & String Functions ====================
+  'UPPER',
+  'LOWER',
+  'TRIM',
+  'LTRIM',
+  'RTRIM',
+  'BTRIM',
+  'SUBSTRING',
+  'CONCAT',
+  'LENGTH',
+  'CHAR_LENGTH',
+  'CHARACTER_LENGTH',
+  'REPLACE',
+  'POSITION',
+  'OVERLAY',
+  'LPAD',
+  'RPAD',
+  'REPEAT',
+  'REVERSE',
+  'SPLIT_PART',
+  'INITCAP',
+  'NORMALIZE',
+  'CHR',
+  'ASCII',
+  'FORMAT',
+
+  // ==================== Numeric Functions ====================
+  'ABS',
+  'CEIL',
+  'CEILING',
+  'FLOOR',
+  'ROUND',
+  'POWER',
+  'SQRT',
+  'MOD',
+  'SIGN',
+  'TRUNC',
+
+  // ==================== Date/Time Functions ====================
+  'EXTRACT',
+  'DATE_TRUNC',
+  'TO_CHAR',
+  'TO_DATE',
+  'TO_TIMESTAMP',
+  'TO_NUMBER',
+  'AGE',
+
   // ==================== Pattern Matching ====================
   'BETWEEN',
   'LIKE',

src/main/services/erp/order-resolver.ts

@@ -58,23 +58,34 @@ export class OrderNumberResolver {
 
   /**
    * Get table name based on database type
-   * Converts MySQL schema_tablename format to SQL Server [schema].[tablename] format
+   * Converts schema_tablename format to database-specific quoting:
-   * e.g., productionContractData_26年压力表合同数据 -> [productionContractData].[26年压力表合同数据]
+   * - SQL Server: [schema].[tablename]
-   *      dbo_MaterialsToBeDeleted -> [dbo].[MaterialsToBeDeleted]
+   * - PostgreSQL: "schema"."tablename"
+   * - MySQL: schema_tablename (as-is)
+   * e.g., productionContractData_26年压力表合同数据 ->
+   *   SQL Server: [productionContractData].[26年压力表合同数据]
+   *   PostgreSQL: "productionContractData"."26年压力表合同数据"
+   *   MySQL: productionContractData_26年压力表合同数据
    */
   private getTableName(tableName: string): string {
-    if (this.dbService.type === 'sqlserver') {
+    if (this.dbService.type === 'sqlserver' || this.dbService.type === 'postgresql') {
       // Find the FIRST underscore to split schema and table name
       // This handles patterns like: schema_tablename
       const firstUnderscoreIndex = tableName.indexOf('_')
       if (firstUnderscoreIndex > 0) {
         const schema = tableName.substring(0, firstUnderscoreIndex)
         const actualTableName = tableName.substring(firstUnderscoreIndex + 1)
+        if (this.dbService.type === 'sqlserver') {
           return `[${schema}].[${actualTableName}]`
         }
-      // If no underscore found, default to dbo schema
+        return `"${schema}"."${actualTableName}"`
+      }
+      // If no underscore found, default schema
+      if (this.dbService.type === 'sqlserver') {
         return `[dbo].[${tableName}]`
       }
+      return `"public"."${tableName}"`
+    }
     return tableName
   }
 
@@ -107,6 +118,11 @@ export class OrderNumberResolver {
         // 使用 COLLATE 指定不区分大小写的排序规则
         sql = `SELECT TOP 1 [${dbConfig.FIELD_ORDER_NUMBER}] FROM ${tableName} WHERE [${dbConfig.FIELD_PRODUCTION_ID}] COLLATE SQL_Latin1_General_CP1_CI_AS = @p0`
         params = [productionId]
+      } else if (this.dbService.type === 'postgresql') {
+        // PostgreSQL: 使用双引号保护中文标识符，UPPER 实现不区分大小写
+        // prepareSql() 会保留已双引号包裹的标识符
+        sql = `SELECT "${dbConfig.FIELD_ORDER_NUMBER}" FROM "${tableName}" WHERE UPPER("${dbConfig.FIELD_PRODUCTION_ID}") = UPPER($1) LIMIT 1`
+        params = [productionId]
       } else {
         // MySQL 默认不区分大小写，但显式使用 UPPER 确保一致性
         sql = `SELECT \`${dbConfig.FIELD_ORDER_NUMBER}\` FROM \`${tableName}\` WHERE UPPER(\`${dbConfig.FIELD_PRODUCTION_ID}\`) = UPPER(?) LIMIT 1`
@@ -155,6 +171,10 @@ export class OrderNumberResolver {
         // P0: Use DISTINCT to prevent duplicates from one-to-many relationships
         // 使用 COLLATE 指定不区分大小写的排序规则
         sql = `SELECT DISTINCT [${dbConfig.FIELD_PRODUCTION_ID}], [${dbConfig.FIELD_ORDER_NUMBER}] FROM ${tableName} WHERE [${dbConfig.FIELD_PRODUCTION_ID}] COLLATE SQL_Latin1_General_CP1_CI_AS IN (${placeholders})`
+      } else if (this.dbService.type === 'postgresql') {
+        // PostgreSQL: 使用双引号保护中文标识符，UPPER 实现不区分大小写
+        const pgPlaceholders = uniqueProductionIds.map((_, i) => `UPPER($${i + 1})`).join(', ')
+        sql = `SELECT DISTINCT "${dbConfig.FIELD_PRODUCTION_ID}", "${dbConfig.FIELD_ORDER_NUMBER}" FROM "${tableName}" WHERE UPPER("${dbConfig.FIELD_PRODUCTION_ID}") IN (${pgPlaceholders})`
       } else {
         const idPlaceholders = uniqueProductionIds.map(() => 'UPPER(?)').join(', ')
         // P0: Use DISTINCT to prevent duplicates from one-to-many relationships

src/main/services/validation/production-input-service.ts

@@ -29,7 +29,7 @@ export async function getSourceNumbersFromInputs(
   const productionIds: string[] = []
   const orderNumbers: string[] = []
   const configManager = ConfigManager.getInstance()
-  const isSqlServer = configManager.getDatabaseType() === 'sqlserver'
+  const dbType = configManager.getDatabaseType()
 
   for (const item of inputs) {
     const type = identifyInputType(item)
@@ -44,7 +44,7 @@ export async function getSourceNumbersFromInputs(
     const contractTableName = getValidationTableName('productionContractData_26年压力表合同数据')
     const batchSize = 2000
 
-    if (isSqlServer) {
+    if (dbType === 'sqlserver') {
       const sql = await import('mssql')
       const allOrderNumbers: string[] = []
 
@@ -71,6 +71,22 @@ export async function getSourceNumbersFromInputs(
         )
       }
 
+      orderNumbers.push(...allOrderNumbers)
+    } else if (dbType === 'postgresql') {
+      const allOrderNumbers: string[] = []
+
+      for (let i = 0; i < productionIds.length; i += batchSize) {
+        const batch = productionIds.slice(i, i + batchSize)
+        const placeholders = batch.map((_, idx) => `$${idx + 1}`).join(',')
+        const contractSql = `
+          SELECT DISTINCT "生产订单号"
+          FROM ${contractTableName}
+          WHERE "总排号" IN (${placeholders})
+        `
+        const contractResult = await dbService.query(contractSql, batch)
+        allOrderNumbers.push(...contractResult.rows.map((row) => row.生产订单号 as string))
+      }
+
       orderNumbers.push(...allOrderNumbers)
     } else {
       const allOrderNumbers: string[] = []

src/main/services/validation/validation-application-service.ts

@@ -463,6 +463,18 @@ export class ValidationApplicationService {
       )
     }
 
+    if (dbService.type === 'postgresql') {
+      return dbService.query(
+        `
+          SELECT "MaterialName", "Specification", "Model"
+          FROM ${detailTableName}
+          WHERE "MaterialCode" = $1
+          LIMIT 1
+        `,
+        [materialCode]
+      )
+    }
+
     return dbService.query(
       `
         SELECT MaterialName, Specification, Model
@@ -521,6 +533,24 @@ export class ValidationApplicationService {
       return materialCodes
     }
 
+    if (dbService.type === 'postgresql') {
+      const result = await dbService.query(
+        `
+          SELECT "MaterialCode"
+          FROM ${markedTableName}
+          WHERE "ManagerName" = $1 AND "MaterialCode" IS NOT NULL
+        `,
+        [username]
+      )
+      const materialCodes = result.rows.map((row) => row.MaterialCode as string).filter(Boolean)
+      log.info(`Regular user: got ${materialCodes.length} materials`, {
+        userId: username,
+        isAdmin: false,
+        materialCount: materialCodes.length
+      })
+      return materialCodes
+    }
+
     const result = await dbService.query(
       `
         SELECT MaterialCode

src/main/services/validation/validation-database.ts

@@ -1,8 +1,9 @@
 import { ConfigManager } from '../config/config-manager'
 import { MySqlService } from '../database/mysql'
 import { SqlServerService } from '../database/sql-server'
+import { PostgreSqlService } from '../database/postgresql'
 
-export type ValidationDatabaseService = MySqlService | SqlServerService
+export type ValidationDatabaseService = MySqlService | SqlServerService | PostgreSqlService
 
 export async function createValidationDatabaseService(): Promise<ValidationDatabaseService> {
   const configManager = ConfigManager.getInstance()
@@ -26,6 +27,19 @@ export async function createValidationDatabaseService(): Promise<ValidationDatab
     return sqlServerService
   }
 
+  if (dbType === 'postgresql') {
+    const dbConfig = config.database.postgresql
+    const pgService = new PostgreSqlService({
+      host: dbConfig.host,
+      port: dbConfig.port,
+      user: dbConfig.username,
+      password: dbConfig.password,
+      database: dbConfig.database
+    })
+    await pgService.connect()
+    return pgService
+  }
+
   const dbConfig = config.database.mysql
   const mysqlService = new MySqlService({
     host: dbConfig.host,
@@ -42,15 +56,21 @@ export function getValidationTableName(mysqlTableName: string): string {
   const configManager = ConfigManager.getInstance()
   const dbType = configManager.getDatabaseType()
 
-  if (dbType === 'sqlserver') {
+  if (dbType === 'sqlserver' || dbType === 'postgresql') {
     const firstUnderscoreIndex = mysqlTableName.indexOf('_')
     if (firstUnderscoreIndex > 0) {
       const schema = mysqlTableName.substring(0, firstUnderscoreIndex)
       const tableName = mysqlTableName.substring(firstUnderscoreIndex + 1)
+      if (dbType === 'sqlserver') {
         return `[${schema}].[${tableName}]`
       }
+      return `"${schema}"."${tableName}"`
+    }
+    if (dbType === 'sqlserver') {
       return `[dbo].[${mysqlTableName}]`
     }
+    return `"public"."${mysqlTableName}"`
+  }
 
   return mysqlTableName
 }