Home Alter table from jpa annotations in Java
 I have a definition for a column like that: @Column private String my_column;  And by default in Postgres database type for this field is character varying(255). Now, I want to change the data type for this column. How I can do this without entry in database and alter table? I tried this: @Lob @Column private String my_column;  And @Column(columnDefinition = "TEXT") private String my_column;  But, without results.