Merge pull request #952 from dbgate/feature/mariadb-indexes-collation

feat: add collation to maria db indexes query and analyser

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

@@ -184,7 +184,7 @@ class Analyser extends DatabaseAnalyser {
           columns: indexes.rows
             .filter(col => col.tableName == idx.tableName && col.constraintName == idx.constraintName)
             .map(col => ({
-              ..._.pick(col, ['columnName']),
+              ..._.pick(col, ['columnName', 'isDescending']),
             })),
         })),
 

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

@@ -4,7 +4,11 @@ module.exports = `
         TABLE_NAME AS tableName,
         COLUMN_NAME AS columnName,
         INDEX_TYPE AS indexType,
-        NON_UNIQUE AS nonUnique
+        NON_UNIQUE AS nonUnique,
+        CASE COLLATION
+            WHEN 'D' THEN 1
+            ELSE 0
+        END AS isDescending
     FROM INFORMATION_SCHEMA.STATISTICS
     WHERE TABLE_SCHEMA = '#DATABASE#' AND TABLE_NAME =OBJECT_ID_CONDITION AND INDEX_NAME != 'PRIMARY'
     ORDER BY SEQ_IN_INDEX