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DbMigration: Do only real type changes

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This commit is contained in:
Roland Praml
2022-03-17 13:01:25 +01:00
parent 923f83cafb
commit 74720a840d
1 changed files with 13 additions and 1 deletions
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ebean-ddl-generator/src/main/java/io/ebeaninternal/dbmigration/ddlgeneration/platform/BaseTableDdl.java
+13 -1
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@@ -723,7 +723,7 @@ public class BaseTableDdl implements TableDdl {
dropCheckConstraint(writer, alterColumn, alterColumn.getCheckConstraintName());
}
if (hasValue(alterColumn.getType())
if (typeChange(alterColumn)
|| hasValue(alterColumn.getDefaultValue())
|| alterColumn.isNotnull() != null) {
alterColumn(writer, alterColumn);
@@ -735,6 +735,18 @@ public class BaseTableDdl implements TableDdl {
}
}
private boolean typeChange(AlterColumn alterColumn) {
if (!hasValue(alterColumn.getType())) {
return false;
}
// check, if we have really a type change for that platform
// When specifying @Column("db2;clob(64K)") this would not alter
// other platforms from "String" to "String" for example
String currentType = platformDdl.convert(alterColumn.getCurrentType());
String type = platformDdl.convert(alterColumn.getType());
return !type.equals(currentType);
}
private void alterColumnComment(DdlWrite writer, AlterColumn alterColumn) {
platformDdl.addColumnComment(writer.applyPostAlter(), alterColumn.getTableName(), alterColumn.getColumnName(), alterColumn.getComment());
}