diff --git a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/go/models.go b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/go/models.go
index 7184db532a..5ab15824ab 100644
--- a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/go/models.go
+++ b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/go/models.go
@@ -9,7 +9,8 @@ import (
 )
 
 type Foo struct {
-	Bar string
-	Baz sql.NullInt32
-	Bio sql.NullInt32
+	Bar    string
+	Baz    sql.NullInt32
+	Bio    sql.NullInt32
+	Foobar []int32
 }
diff --git a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/schema.sql b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/schema.sql
index 01c3f60d0f..a70d902d4e 100644
--- a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/schema.sql
+++ b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v4/schema.sql
@@ -1,3 +1,4 @@
 CREATE TABLE foo (bar text NOT NULL);
 ALTER TABLE foo ADD COLUMN baz int;
 ALTER TABLE foo ADD bio int;
+ALTER TABLE foo ADD COLUMN foobar int[];
diff --git a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/go/models.go b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/go/models.go
index dee8aa7628..f8d7f6c8e6 100644
--- a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/go/models.go
+++ b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/go/models.go
@@ -9,7 +9,8 @@ import (
 )
 
 type Foo struct {
-	Bar string
-	Baz pgtype.Int4
-	Bio pgtype.Int4
+	Bar    string
+	Baz    pgtype.Int4
+	Bio    pgtype.Int4
+	Foobar []int32
 }
diff --git a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/schema.sql b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/schema.sql
index 01c3f60d0f..a70d902d4e 100644
--- a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/schema.sql
+++ b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/pgx/v5/schema.sql
@@ -1,3 +1,4 @@
 CREATE TABLE foo (bar text NOT NULL);
 ALTER TABLE foo ADD COLUMN baz int;
 ALTER TABLE foo ADD bio int;
+ALTER TABLE foo ADD COLUMN foobar int[];
diff --git a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/go/models.go b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/go/models.go
index 7184db532a..5ab15824ab 100644
--- a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/go/models.go
+++ b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/go/models.go
@@ -9,7 +9,8 @@ import (
 )
 
 type Foo struct {
-	Bar string
-	Baz sql.NullInt32
-	Bio sql.NullInt32
+	Bar    string
+	Baz    sql.NullInt32
+	Bio    sql.NullInt32
+	Foobar []int32
 }
diff --git a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/schema.sql b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/schema.sql
index 01c3f60d0f..a70d902d4e 100644
--- a/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/schema.sql
+++ b/internal/endtoend/testdata/ddl_alter_table_add_column/postgresql/stdlib/schema.sql
@@ -1,3 +1,4 @@
 CREATE TABLE foo (bar text NOT NULL);
 ALTER TABLE foo ADD COLUMN baz int;
 ALTER TABLE foo ADD bio int;
+ALTER TABLE foo ADD COLUMN foobar int[];
diff --git a/internal/sql/catalog/table.go b/internal/sql/catalog/table.go
index 03516befde..5598da4df5 100644
--- a/internal/sql/catalog/table.go
+++ b/internal/sql/catalog/table.go
@@ -57,6 +57,7 @@ func (table *Table) addColumn(cmd *ast.AlterTableCmd) error {
 		IsNotNull:  cmd.Def.IsNotNull,
 		IsUnsigned: cmd.Def.IsUnsigned,
 		IsArray:    cmd.Def.IsArray,
+		ArrayDims:  cmd.Def.ArrayDims,
 		Length:     cmd.Def.Length,
 	})
 	return nil