TestMigrateColumns Test Failure

[jawad-arb123]

While running the TestMigrateColumns Test , we get this issue :

Error Message

2025/08/22 12:09:30 /Users/jawadarbahi/Documents/new_clean_action/gorm-oracle/oracle/migrator.go:377
[179.830ms] [rows:-] SELECT * FROM "column_structs" WHERE ROWNUM = 1
migrate_test.go:490: column id primary key should be correct, name: id, column: migrator.ColumnType{SQLColumnType:(*sql.ColumnType)(0x140003ee460), NameValue:sql.NullString{String:"", Valid:false}, DataTypeValue:sql.NullString{String:"", Valid:false}, ColumnTypeValue:sql.NullString{String:"", Valid:false}, PrimaryKeyValue:sql.NullBool{Bool:false, Valid:false}, UniqueValue:sql.NullBool{Bool:false, Valid:false}, AutoIncrementValue:sql.NullBool{Bool:false, Valid:false}, LengthValue:sql.NullInt64{Int64:0, Valid:false}, DecimalSizeValue:sql.NullInt64{Int64:0, Valid:false}, ScaleValue:sql.NullInt64{Int64:0, Valid:false}, NullableValue:sql.NullBool{Bool:false, Valid:false}, ScanTypeValue:reflect.Type(nil), CommentValue:sql.NullString{String:"", Valid:false}, DefaultValueValue:sql.NullString{String:"", Valid:false}}
--- FAIL: TestMigrateColumns (2.88s)

FAIL

Bug Description

The TestMigrateColumns test fails because the ColumnTypes() method in the Oracle GORM migrator returns ColumnType objects with all metadata fields set to invalid/empty values. This prevents proper validation of column properties such as primary keys, constraints, default values, and comments.