HCK-7465: Add clustering options to Materialized view

forward_engineering/configs/templates.js

@@ -26,7 +26,8 @@ module.exports = {
 	createView:
 		'CREATE${secure}${materialized} VIEW IF NOT EXISTS ${name} (\n' +
 		'\t${column_list}\n' +
-		')\n${copy_grants}${comment}${tag}AS ${select_statement};\n',
+		')\n${copy_grants}${comment}${tag}${clustering} AS\n${select_statement};\n',
+
 	createUDF:
 		'CREATE${orReplace} FUNCTION ${name}(${arguments})\n\tRETURNS ${returnType}${notNull}\n\tLANGUAGE ${language}${parameters}${comment}\n\tAS ${body};\n',
 	createProcedure:

forward_engineering/ddlProvider.js

@@ -18,6 +18,7 @@ const {
 	prepareCollectionStageCopyOptions,
 } = require('./helpers/alterScriptHelpers/common');
 const { escapeString } = require('./utils/escapeString');
+const { getClusteringKey } = require('./utils/getClusteringKey');
 
 const DEFAULT_SNOWFLAKE_SEQUENCE_START = 1;
 const DEFAULT_SNOWFLAKE_SEQUENCE_INCREMENT = 1;
@@ -530,15 +531,23 @@ module.exports = (baseProvider, options, app) => {
 				indent: '',
 			});
 
+			const clustering = viewData.materialized
+				? getClusteringKey({
+						clusteringKey: viewData.clusteringKey,
+						isParentActivated: isActivated,
+					})
+				: undefined;
+
 			return assignTemplates(templates.createView, {
 				secure: viewData.secure ? ' SECURE' : '',
 				materialized: viewData.materialized ? ' MATERIALIZED' : '',
 				name: getFullName(schemaName, viewData.name),
 				column_list: viewColumnsToString(columnList, isActivated),
 				copy_grants: viewData.copyGrants ? 'COPY GRANTS\n' : '',
-				comment: viewData.comment ? 'COMMENT=' + escapeString(scriptFormat, viewData.comment) + '\n' : '',
+				comment: viewData.comment ? 'COMMENT=' + escapeString(scriptFormat, viewData.comment) : '',
 				select_statement: selectStatement,
 				tag: tagStatement ? tagStatement + '\n' : '',
+				clustering,
 			});
 		},
 
@@ -877,6 +886,7 @@ module.exports = (baseProvider, options, app) => {
 				secure: firstTab.secure,
 				materialized: firstTab.materialized,
 				fullName,
+				clusteringKey: firstTab.clusteringKey,
 				viewTags: firstTab.viewTags ?? [],
 			};
 		},

forward_engineering/utils/getClusteringKey.js

@@ -0,0 +1,34 @@
+const mapName = key => `"${key.name}"`;
+
+const getClusteringKey = ({ clusteringKey, isParentActivated }) => {
+	if (!Array.isArray(clusteringKey) || clusteringKey.length === 0) {
+		return '';
+	}
+
+	const activated = clusteringKey
+		.filter(key => key.isActivated)
+		.map(mapName)
+		.join(', ');
+	const deActivated = clusteringKey
+		.filter(key => !key.isActivated)
+		.map(mapName)
+		.join(', ');
+
+	if (!isParentActivated) {
+		return `\nCLUSTER BY (${clusteringKey.map(mapName).join(', ')})`;
+	}
+
+	if (activated.length === 0) {
+		return `\n// CLUSTER BY (${deActivated})`;
+	}
+
+	if (deActivated.length === 0) {
+		return `\nCLUSTER BY (${activated})`;
+	}
+
+	return `\nCLUSTER BY (${activated}) //${deActivated}`;
+};
+
+module.exports = {
+	getClusteringKey,
+};

properties_pane/view_level/viewLevelConfig.json

@@ -56,6 +56,23 @@
 				"propertyTooltip": "is Materialized View",
 				"propertyType": "checkbox"
 			},
+			{
+				"propertyName": "Cluster by",
+				"propertyKeyword": "clusteringKey",
+				"dependency": {
+					"key": "materialized",
+					"value": true
+				},
+				"propertyType": "fieldList",
+				"disabledItemStrategy": "default",
+				"abbr": "CK",
+				"setPrimaryKey": false,
+				"template": "orderedList",
+				"isCompositeKey": true,
+				"templateOptions": {
+					"maxFields": 4
+				}
+			},
 			{
 				"propertyName": "Secure",
 				"propertyKeyword": "secure",