postgre, mysql uniques, recreate table WIP, drop index works

plugins/dbgate-plugin-mysql/src/backend/Analyser.js

@@ -75,6 +75,7 @@ class Analyser extends DatabaseAnalyser {
 
     const viewTexts = await this.getViewTexts(views.rows.map(x => x.pureName));
     const indexes = await this.driver.query(this.pool, this.createQuery('indexes', ['tables']));
+    const uniqueNames = await this.driver.query(this.pool, this.createQuery('uniqueNames', ['tables']));
 
     return {
       tables: tables.rows.map(table => ({
@@ -84,9 +85,11 @@ class Analyser extends DatabaseAnalyser {
         columns: columns.rows.filter(col => col.pureName == table.pureName).map(getColumnInfo),
         primaryKey: DatabaseAnalyser.extractPrimaryKeys(table, pkColumns.rows),
         foreignKeys: DatabaseAnalyser.extractForeignKeys(table, fkColumns.rows),
-        uniques: [],
         indexes: _.uniqBy(
-          indexes.rows.filter(idx => idx.tableName == table.pureName),
+          indexes.rows.filter(
+            idx =>
+              idx.tableName == table.pureName && !uniqueNames.rows.find(x => x.constraintName == idx.constraintName)
+          ),
           'constraintName'
         ).map(idx => ({
           ..._.pick(idx, ['constraintName', 'indexType']),
@@ -97,6 +100,21 @@ class Analyser extends DatabaseAnalyser {
               ..._.pick(col, ['columnName']),
             })),
         })),
+
+        uniques: _.uniqBy(
+          indexes.rows.filter(
+            idx =>
+              idx.tableName == table.pureName && uniqueNames.rows.find(x => x.constraintName == idx.constraintName)
+          ),
+          'constraintName'
+        ).map(idx => ({
+          ..._.pick(idx, ['constraintName']),
+          columns: indexes.rows
+            .filter(col => col.tableName == idx.tableName && col.constraintName == idx.constraintName)
+            .map(col => ({
+              ..._.pick(col, ['columnName']),
+            })),
+        })),
       })),
       views: views.rows.map(view => ({
         ...view,

plugins/dbgate-plugin-mysql/src/backend/sql/index.js

@@ -8,6 +8,7 @@ const indexes = require('./indexes');
 const programmables = require('./programmables');
 const procedureModifications = require('./procedureModifications');
 const functionModifications = require('./functionModifications');
+const uniqueNames = require('./uniqueNames');
 
 module.exports = {
   columns,
@@ -20,4 +21,5 @@ module.exports = {
   procedureModifications,
   functionModifications,
   indexes,
+  uniqueNames,
 };

plugins/dbgate-plugin-mysql/src/backend/sql/uniqueNames.js

@@ -0,0 +1,5 @@
+module.exports = `
+    select CONSTRAINT_NAME as constraintName
+    from information_schema.TABLE_CONSTRAINTS
+    where CONSTRAINT_SCHEMA = '#DATABASE#' and constraint_type = 'UNIQUE'
+`;

plugins/dbgate-plugin-mysql/src/frontend/drivers.js

@@ -22,6 +22,7 @@ const dialect = {
   dropForeignKey: true,
   createPrimaryKey: true,
   dropPrimaryKey: true,
+  dropIndexContainsTableSpec: true,
 };
 
 const mysqlDriverBase = {