From e637e3f008a05ee7667a513d121a33a3d3721700 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B1=B1=E7=81=B5?= <zeyuremtes@aliyun.com>
Date: Tue, 26 Mar 2024 10:48:46 +0800
Subject: [PATCH] add column-comment

---
 drivers/metadata/informationschema/metadata.go | 2 ++
 drivers/metadata/metadata.go                   | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/metadata/informationschema/metadata.go b/drivers/metadata/informationschema/metadata.go
index ea97bfe1f6f..3b5cc0e4f2c 100644
--- a/drivers/metadata/informationschema/metadata.go
+++ b/drivers/metadata/informationschema/metadata.go
@@ -219,6 +219,7 @@ func (s InformationSchema) Columns(f metadata.Filter) (*metadata.ColumnSet, erro
 		s.clauses[ColumnsNumericScale],
 		s.clauses[ColumnsNumericPrecRadix],
 		s.clauses[ColumnsCharOctetLength],
+		"COLUMN_COMMENT",
 	}
 
 	qstr := "SELECT\n  " + strings.Join(columns, ",\n  ") + " FROM information_schema.columns\n"
@@ -253,6 +254,7 @@ func (s InformationSchema) Columns(f metadata.Filter) (*metadata.ColumnSet, erro
 			&rec.DecimalDigits,
 			&rec.NumPrecRadix,
 			&rec.CharOctetLength,
+			&rec.Comment,
 		)
 		if err != nil {
 			return nil, err
diff --git a/drivers/metadata/metadata.go b/drivers/metadata/metadata.go
index eb53ab31b68..4769cb60528 100644
--- a/drivers/metadata/metadata.go
+++ b/drivers/metadata/metadata.go
@@ -341,6 +341,7 @@ type Column struct {
 	NumPrecRadix    int
 	CharOctetLength int
 	IsNullable      Bool
+	Comment         string
 }
 
 type Bool string