use correct new properties or empty (#96)

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title is updated -->
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<table>
<td>
<a href="https://hackolade.atlassian.net/browse/HCK-15268"
title="HCK-15268" target="_blank"><img alt="Sub-bug"
src="https://hackolade.atlassian.net/rest/api/2/universal_avatar/view/type/issuetype/avatar/10303?size=medium"
/>HCK-15268</a> [Oracle,PostgreSQL,BigQuery,etc.][ALTER] Cannot convert
undefined or null to object
  </td></table>
  <br />
 

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## Technical details

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Author: AlikRakhmonov

forward_engineering/alterScript/alterScriptHelpers/entityHelpers/primaryKeyHelper.js

@@ -50,7 +50,7 @@ const wasCompositePkChangedInTransitionFromCompositeToRegular = collection => {
 		return PrimaryKeyTransitionDto.noTransition();
 	}
 	const idOfPkColumn = idsOfColumns[0];
-	const newColumnJsonSchema = Object.values(collection.role.properties).find(
+	const newColumnJsonSchema = Object.values(collection.properties || {}).find(
 		columnJsonSchema => columnJsonSchema.GUID === idOfPkColumn,
 	);
 	if (!newColumnJsonSchema) {

forward_engineering/alterScript/alterScriptHelpers/entityHelpers/uniqueKeyHelper.js

@@ -50,7 +50,7 @@ const wasCompositeUniqueKeyChangedInTransitionFromCompositeToRegular = collectio
 		return UniqueKeyTransitionDto.noTransition();
 	}
 	const idOfUniqueKeyColumn = idsOfColumns[0];
-	const newColumnJsonSchema = Object.values(collection.role.properties).find(
+	const newColumnJsonSchema = Object.values(collection.properties || {}).find(
 		columnJsonSchema => columnJsonSchema.GUID === idOfUniqueKeyColumn,
 	);
 	if (!newColumnJsonSchema) {