fix: correctly show default value for firebird

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

@@ -1,6 +1,6 @@
 const _ = require('lodash');
 const sql = require('./sql');
-const { getDataTypeString, getTriggerTiming, getTriggerEventType } = require('./helpers');
+const { getDataTypeString, getTriggerTiming, getTriggerEventType, getFormattedDefaultValue } = require('./helpers');
 
 const { DatabaseAnalyser } = require('dbgate-tools');
 
@@ -23,6 +23,7 @@ class Analyser extends DatabaseAnalyser {
     const columns = columnsResult.rows?.map(column => ({
       ...column,
       dataType: getDataTypeString(column),
+      defaultValue: getFormattedDefaultValue(column.defaultValue),
     }));
 
     const triggers = triggersResult.rows?.map(i => ({

plugins/dbgate-plugin-firebird/src/backend/helpers.js

@@ -75,8 +75,15 @@ function getTriggerTiming(triggerType) {
   return eventMap[triggerType]?.triggerTiming || null;
 }
 
+function getFormattedDefaultValue(defaultValue) {
+  if (defaultValue === null) return null;
+
+  return defaultValue.replace(/^default\s*/i, '');
+}
+
 module.exports = {
   getDataTypeString,
   getTriggerEventType,
   getTriggerTiming,
+  getFormattedDefaultValue,
 };

plugins/dbgate-plugin-firebird/src/backend/sql/columns.js

@@ -18,7 +18,7 @@ SELECT DISTINCT
     f.rdb$field_precision AS "precision",
     f.rdb$field_scale AS "scale",
     f.rdb$field_length AS "length",
-    CAST(TRIM(rf.rdb$default_value) AS VARCHAR(255)) AS "defaultValue",
+    CAST(TRIM(rf.RDB$DEFAULT_SOURCE) AS VARCHAR(255)) AS "defaultValue",
     CAST(TRIM(rf.rdb$description) AS VARCHAR(255)) AS "columnComment",
     CASE
         WHEN f.rdb$field_type IN (8, 9, 16) AND f.rdb$field_scale < 0 THEN TRUE