handle sparse, zerofill, unsigned, commant flags

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

@@ -15,7 +15,9 @@ function getColumnInfo({
   numericScale,
   defaultValue,
   columnComment,
+  columnType,
 }) {
+  const columnTypeTokens = _.isString(columnType) ? columnType.split(' ').map(x => x.trim().toLowerCase()) : [];
   let fullDataType = dataType;
   if (charMaxLength && isTypeString(dataType)) fullDataType = `${dataType}(${charMaxLength})`;
   if (numericPrecision && numericScale && isTypeNumeric(dataType))
@@ -27,6 +29,8 @@ function getColumnInfo({
     columnComment,
     dataType: fullDataType,
     defaultValue,
+    isUnsigned: columnTypeTokens.includes('unsigned'),
+    isZerofill: columnTypeTokens.includes('zerofill'),
   };
 }
 

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

@@ -9,6 +9,7 @@ select
 	NUMERIC_SCALE as numericScale,
 	COLUMN_DEFAULT as defaultValue,
 	COLUMN_COMMENT as columnComment,
+	COLUMN_TYPE as columnType,
 	EXTRA as extra
 from INFORMATION_SCHEMA.COLUMNS
 where TABLE_SCHEMA = '#DATABASE#' and TABLE_NAME =OBJECT_ID_CONDITION

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

@@ -38,6 +38,22 @@ class Dumper extends SqlDumper {
     this.endCommand();
   }
 
+  specialColumnOptions(column) {
+    if (column.isUnsigned) {
+      this.put('^unsigned ');
+    }
+    if (column.isZerofill) {
+      this.put('^zerofill ');
+    }
+  }
+
+  columnDefinition(col, options) {
+    super.columnDefinition(col, options);
+    if (col.columnComment) {
+      this.put(' ^comment %v ', col.columnComment);
+    }
+  }
+
   renameColumn(column, newcol) {
     this.changeColumn(
       column,

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

@@ -33,6 +33,8 @@ const dialect = {
 
   columnProperties: {
     columnComment: true,
+    isUnsigned: true,
+    isZerofill: true,
   },
 };