feat(spark): support materialized view for spark sql (#262)

* feat(spark): support materialized view for spark sql

* fix(spark): code review update

* fix(spark): update spark  materilized view and zorder grammar

* test(spark): add syntaxSuggestion test of materialized view

---------

Co-authored-by: jialan <jialan@dtstack.com>

src/grammar/spark/SparkSqlLexer.g4

@@ -142,12 +142,14 @@ KW_DESCRIBE          : 'DESCRIBE';
 KW_DFS               : 'DFS';
 KW_DIRECTORIES       : 'DIRECTORIES';
 KW_DIRECTORY         : 'DIRECTORY';
+KW_DISABLE           : 'DISABLE';
 KW_DISTINCT          : 'DISTINCT';
 KW_DISTRIBUTE        : 'DISTRIBUTE';
 KW_DIV               : 'DIV';
 KW_DOUBLE            : 'DOUBLE';
 KW_DROP              : 'DROP';
 KW_ELSE              : 'ELSE';
+KW_ENABLE            : 'ENABLE';
 KW_END               : 'END';
 KW_ESCAPE            : 'ESCAPE';
 KW_ESCAPED           : 'ESCAPED';
@@ -224,6 +226,7 @@ KW_LOCKS             : 'LOCKS';
 KW_LOGICAL           : 'LOGICAL';
 KW_LONG              : 'LONG';
 KW_MACRO             : 'MACRO';
+KW_MATERIALIZED      : 'MATERIALIZED';
 KW_MAP               : 'MAP';
 KW_MATCHED           : 'MATCHED';
 KW_MERGE             : 'MERGE';
@@ -252,6 +255,7 @@ KW_OF                : 'OF';
 KW_OFFSET            : 'OFFSET';
 KW_ON                : 'ON';
 KW_ONLY              : 'ONLY';
+KW_OPTIMIZE          : 'OPTIMIZE';
 KW_OPTION            : 'OPTION';
 KW_OPTIONS           : 'OPTIONS';
 KW_OR                : 'OR';
@@ -294,6 +298,7 @@ KW_REPLACE           : 'REPLACE';
 KW_RESET             : 'RESET';
 KW_RESPECT           : 'RESPECT';
 KW_RESTRICT          : 'RESTRICT';
+KW_REWRITE           : 'REWRITE';
 KW_REVOKE            : 'REVOKE';
 KW_RIGHT             : 'RIGHT';
 KW_RLIKE             : 'RLIKE';
@@ -396,6 +401,7 @@ KW_WITHIN            : 'WITHIN';
 KW_YEAR              : 'YEAR';
 KW_YEARS             : 'YEARS';
 KW_ZONE              : 'ZONE';
+KW_ZORDER            : 'ZORDER';
 //--SPARK-KEYWORD-LIST-END
 //============================
 // End of the keywords list

src/grammar/spark/SparkSqlParser.g4

@@ -92,8 +92,11 @@ statement
     )* KW_PURGE?
     | KW_ALTER KW_TABLE tableName (partitionSpec)? KW_SET locationSpec
     | KW_ALTER KW_TABLE tableName KW_RECOVER KW_PARTITIONS
+    | KW_ALTER KW_MATERIALIZED KW_VIEW viewName (KW_ENABLE | KW_DISABLE) KW_REWRITE
+    | KW_ALTER KW_MATERIALIZED KW_VIEW viewName KW_SET KW_TBLPROPERTIES propertyList
     | KW_DROP KW_TABLE (ifExists)? tableName KW_PURGE?
     | KW_DROP KW_VIEW (ifExists)? viewName
+    | KW_DROP KW_MATERIALIZED KW_VIEW (ifExists)? viewName
     | KW_CREATE (KW_OR KW_REPLACE)? (KW_GLOBAL? KW_TEMPORARY)? KW_VIEW (ifNotExists)? viewNameCreate identifierCommentList? (
         commentSpec
         | (KW_PARTITIONED KW_ON identifierList)
@@ -106,6 +109,19 @@ statement
     | KW_CREATE (KW_OR KW_REPLACE)? KW_TEMPORARY? KW_FUNCTION (ifNotExists)? functionNameCreate KW_AS className=stringLit (
         KW_USING resource (COMMA resource)*
     )?
+    |
+    // Self developed materialized view syntax by dtstack, spark not support now.
+    KW_CREATE KW_MATERIALIZED KW_VIEW (ifNotExists)? viewNameCreate tableProvider? (
+        (KW_OPTIONS options=propertyList)
+        | (KW_PARTITIONED KW_BY partitioning=partitionFieldList)
+        | skewSpec
+        | bucketSpec
+        | rowFormat
+        | createFileFormat
+        | locationSpec
+        | commentSpec
+        | (KW_TBLPROPERTIES tableProps=propertyList)
+    )* KW_AS query
     | KW_DROP KW_TEMPORARY? KW_FUNCTION (ifExists)? functionName
     | KW_DECLARE (KW_OR KW_REPLACE)? KW_VARIABLE? functionName dataType? variableDefaultExpression?
     | KW_DROP KW_TEMPORARY KW_VARIABLE (ifExists)? (tableName | viewName | functionName)
@@ -122,6 +138,10 @@ statement
     | KW_SHOW KW_CREATE KW_TABLE tableName (KW_AS KW_SERDE)?
     | KW_SHOW KW_CURRENT dbSchema
     | KW_SHOW KW_CATALOGS (KW_LIKE? pattern=stringLit)?
+    | KW_SHOW KW_MATERIALIZED KW_VIEWS ((KW_FROM | KW_IN) db_name=dbSchemaName)? (
+        KW_LIKE? pattern=stringLit
+    )?
+    | KW_SHOW KW_CREATE KW_MATERIALIZED KW_VIEW viewName (KW_AS KW_SERDE)?
     | (KW_DESC | KW_DESCRIBE) KW_FUNCTION KW_EXTENDED? describeFuncName
     | (KW_DESC | KW_DESCRIBE) KW_DATABASE KW_EXTENDED? dbSchemaName
     | (KW_DESC | KW_DESCRIBE) KW_TABLE? option=(KW_EXTENDED | KW_FORMATTED)? tableName partitionSpec? describeColName?
@@ -131,6 +151,7 @@ statement
     | KW_REFRESH KW_TABLE tableName
     | KW_REFRESH KW_FUNCTION functionName
     | KW_REFRESH (stringLit | .*?)
+    | KW_REFRESH KW_MATERIALIZED KW_VIEW viewName
     | KW_CACHE KW_LAZY? KW_TABLE tableName (KW_OPTIONS options=propertyList)? (KW_AS? query)?
     | KW_UNCACHE KW_TABLE (ifExists)? tableName
     | KW_CLEAR KW_CACHE
@@ -154,6 +175,7 @@ statement
         KW_USING indexType=identifier
     )? LEFT_PAREN multipartIdentifierPropertyList RIGHT_PAREN (KW_OPTIONS options=propertyList)?
     | KW_DROP KW_INDEX (ifExists)? identifier KW_ON KW_TABLE? tableName
+    | KW_OPTIMIZE tableName whereClause? zorderClause
     | unsupportedHiveNativeCommands .*?
     ;
 
@@ -1233,6 +1255,10 @@ windowClause
     : KW_WINDOW namedWindow (COMMA namedWindow)*
     ;
 
+zorderClause
+    : KW_ZORDER KW_BY columnNameSeq
+    ;
+
 namedWindow
     : name=errorCapturingIdentifier KW_AS windowSpec
     ;
@@ -1436,10 +1462,12 @@ ansiNonReserved
     | KW_DFS
     | KW_DIRECTORIES
     | KW_DIRECTORY
+    | KW_DISABLE
     | KW_DISTRIBUTE
     | KW_DIV
     | KW_DOUBLE
     | KW_DROP
+    | KW_ENABLE
     | KW_ESCAPED
     | KW_EXCHANGE
     | KW_EXCLUDE
@@ -1495,6 +1523,7 @@ ansiNonReserved
     | KW_MACRO
     | KW_MAP
     | KW_MATCHED
+    | KW_MATERIALIZED
     | KW_MERGE
     | KW_MICROSECOND
     | KW_MICROSECONDS
@@ -1514,6 +1543,7 @@ ansiNonReserved
     | KW_NULLS
     | KW_NUMERIC
     | KW_OF
+    | KW_OPTIMIZE
     | KW_OPTION
     | KW_OPTIONS
     | KW_OUT
@@ -1549,6 +1579,7 @@ ansiNonReserved
     | KW_RESPECT
     | KW_RESTRICT
     | KW_REVOKE
+    | KW_REWRITE
     | KW_RLIKE
     | KW_REGEXP
     | KW_ROLE
@@ -1632,6 +1663,7 @@ ansiNonReserved
     | KW_YEAR
     | KW_YEARS
     | KW_ZONE
+    | KW_ZORDER
     //--ANSI-NON-RESERVED-END
     ;
 
@@ -1747,12 +1779,14 @@ nonReserved
     | KW_DFS
     | KW_DIRECTORIES
     | KW_DIRECTORY
+    | KW_DISABLE
     | KW_DISTINCT
     | KW_DISTRIBUTE
     | KW_DIV
     | KW_DOUBLE
     | KW_DROP
     | KW_ELSE
+    | KW_ENABLE
     | KW_END
     | KW_ESCAPE
     | KW_ESCAPED
@@ -1824,6 +1858,7 @@ nonReserved
     | KW_MACRO
     | KW_MAP
     | KW_MATCHED
+    | KW_MATERIALIZED
     | KW_MERGE
     | KW_MICROSECOND
     | KW_MICROSECONDS
@@ -1847,6 +1882,7 @@ nonReserved
     | KW_OF
     | KW_OFFSET
     | KW_ONLY
+    | KW_OPTIMIZE
     | KW_OPTION
     | KW_OPTIONS
     | KW_OR
@@ -1890,6 +1926,7 @@ nonReserved
     | KW_RESPECT
     | KW_RESTRICT
     | KW_REVOKE
+    | KW_REWRITE
     | KW_RLIKE
     | KW_REGEXP
     | KW_ROLE
@@ -1986,5 +2023,6 @@ nonReserved
     | KW_YEAR
     | KW_YEARS
     | KW_ZONE
+    | KW_ZORDER
     //--DEFAULT-NON-RESERVED-END
     ;

src/lib/spark/SparkSqlParserListener.ts

@@ -179,6 +179,7 @@ import { ComplexColTypeListContext } from "./SparkSqlParser";
 import { ComplexColTypeContext } from "./SparkSqlParser";
 import { WhenClauseContext } from "./SparkSqlParser";
 import { WindowClauseContext } from "./SparkSqlParser";
+import { ZorderClauseContext } from "./SparkSqlParser";
 import { NamedWindowContext } from "./SparkSqlParser";
 import { WindowSpecContext } from "./SparkSqlParser";
 import { WindowFrameContext } from "./SparkSqlParser";
@@ -2144,6 +2145,17 @@ export interface SparkSqlParserListener extends ParseTreeListener {
 	 */
 	exitWindowClause?: (ctx: WindowClauseContext) => void;
 
+	/**
+	 * Enter a parse tree produced by `SparkSqlParser.zorderClause`.
+	 * @param ctx the parse tree
+	 */
+	enterZorderClause?: (ctx: ZorderClauseContext) => void;
+	/**
+	 * Exit a parse tree produced by `SparkSqlParser.zorderClause`.
+	 * @param ctx the parse tree
+	 */
+	exitZorderClause?: (ctx: ZorderClauseContext) => void;
+
 	/**
 	 * Enter a parse tree produced by `SparkSqlParser.namedWindow`.
 	 * @param ctx the parse tree

src/lib/spark/SparkSqlParserVisitor.ts

@@ -179,6 +179,7 @@ import { ComplexColTypeListContext } from "./SparkSqlParser";
 import { ComplexColTypeContext } from "./SparkSqlParser";
 import { WhenClauseContext } from "./SparkSqlParser";
 import { WindowClauseContext } from "./SparkSqlParser";
+import { ZorderClauseContext } from "./SparkSqlParser";
 import { NamedWindowContext } from "./SparkSqlParser";
 import { WindowSpecContext } from "./SparkSqlParser";
 import { WindowFrameContext } from "./SparkSqlParser";
@@ -1443,6 +1444,13 @@ export interface SparkSqlParserVisitor<Result> extends ParseTreeVisitor<Result>
 	 */
 	visitWindowClause?: (ctx: WindowClauseContext) => Result;
 
+	/**
+	 * Visit a parse tree produced by `SparkSqlParser.zorderClause`.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	visitZorderClause?: (ctx: ZorderClauseContext) => Result;
+
 	/**
 	 * Visit a parse tree produced by `SparkSqlParser.namedWindow`.
 	 * @param ctx the parse tree

test/parser/spark/suggestion/fixtures/syntaxSuggestion.sql

@@ -47,3 +47,21 @@ SELECT id, n FROM tbl GROUP BY  ;
 SELECT id, n FROM tbl ORDER BY name, i ;
 
 SELECT id FROM tb1 GROUP BY ROLLUP(  );
+
+CREATE MATERIALIZED VIEW db.mv;
+
+DROP MATERIALIZED VIEW db.mv;
+
+ALTER MATERIALIZED VIEW db.mv;
+
+REFRESH MATERIALIZED VIEW db.mv;
+
+SHOW CREATE MATERIALIZED VIEW db.mv;
+
+SHOW MATERIALIZED VIEWS from db;
+
+OPTIMIZE db.tb;
+
+OPTIMIZE db.tb ZORDER BY  ;
+
+OPTIMIZE db.tb ZORDER BY name, i;

test/parser/spark/suggestion/syntaxSuggestion.test.ts

@@ -442,4 +442,157 @@ describe('Spark SQL Syntax Suggestion', () => {
         expect(suggestion).not.toBeUndefined();
         expect(suggestion?.wordRanges.map((token) => token.text)).toEqual([]);
     });
+
+    test('Create materialized view', () => {
+        const pos: CaretPosition = {
+            lineNumber: 51,
+            column: 31,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.VIEW_CREATE
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['db', '.', 'mv']);
+    });
+
+    test('Drop materialized view', () => {
+        const pos: CaretPosition = {
+            lineNumber: 53,
+            column: 29,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.VIEW
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['db', '.', 'mv']);
+    });
+
+    test('Alter materialized view', () => {
+        const pos: CaretPosition = {
+            lineNumber: 55,
+            column: 30,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.VIEW
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['db', '.', 'mv']);
+    });
+
+    test('Refresh materialized view', () => {
+        const pos: CaretPosition = {
+            lineNumber: 57,
+            column: 32,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.VIEW
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['db', '.', 'mv']);
+    });
+
+    test('Show create materialized view', () => {
+        const pos: CaretPosition = {
+            lineNumber: 59,
+            column: 36,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.VIEW
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['db', '.', 'mv']);
+    });
+
+    test('Show all materialized from database', () => {
+        const pos: CaretPosition = {
+            lineNumber: 61,
+            column: 32,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.DATABASE
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['db']);
+    });
+
+    test('Optimize table', () => {
+        const pos: CaretPosition = {
+            lineNumber: 63,
+            column: 15,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.TABLE
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['db', '.', 'tb']);
+    });
+
+    test('Optimize table zorder by empty', () => {
+        const pos: CaretPosition = {
+            lineNumber: 65,
+            column: 26,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.COLUMN
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual([]);
+    });
+
+    test('Optimize table zorder by columns', () => {
+        const pos: CaretPosition = {
+            lineNumber: 67,
+            column: 33,
+        };
+        const syntaxes = parser.getSuggestionAtCaretPosition(
+            commentOtherLine(syntaxSql, pos.lineNumber),
+            pos
+        )?.syntax;
+        const suggestion = syntaxes?.find(
+            (syn) => syn.syntaxContextType === SyntaxContextType.COLUMN
+        );
+
+        expect(suggestion).not.toBeUndefined();
+        expect(suggestion?.wordRanges.map((token) => token.text)).toEqual(['i']);
+    });
 });

test/parser/spark/suggestion/tokenSuggestion.test.ts

@@ -19,7 +19,15 @@ describe('Spark SQL Token Suggestion', () => {
             pos
         )?.keywords;
 
-        expect(suggestion).toEqual(['TABLE', 'INDEX', 'VIEW', 'DATABASE', 'NAMESPACE', 'SCHEMA']);
+        expect(suggestion).toEqual([
+            'TABLE',
+            'INDEX',
+            'VIEW',
+            'MATERIALIZED',
+            'DATABASE',
+            'NAMESPACE',
+            'SCHEMA',
+        ]);
     });
 
     test('After CREATE', () => {
@@ -36,6 +44,7 @@ describe('Spark SQL Token Suggestion', () => {
             'TEMPORARY',
             'INDEX',
             'ROLE',
+            'MATERIALIZED',
             'FUNCTION',
             'OR',
             'GLOBAL',
@@ -102,6 +111,7 @@ describe('Spark SQL Token Suggestion', () => {
             'INDEX',
             'ROLE',
             'FUNCTION',
+            'MATERIALIZED',
             'VIEW',
             'TABLE',
             'DATABASE',
@@ -157,6 +167,7 @@ describe('Spark SQL Token Suggestion', () => {
             'PRINCIPALS',
             'ROLE',
             'GRANT',
+            'MATERIALIZED',
             'CATALOGS',
             'FUNCTIONS',
             'ALL',

test/parser/spark/syntax/alter.test.ts

@@ -4,12 +4,13 @@ import { readSQL } from 'test/helper';
 const parser = new SparkSQL();
 
 const features = {
-    alertDatabase: readSQL(__dirname, 'alertDatabase.sql'),
+    alterDatabase: readSQL(__dirname, 'alterDatabase.sql'),
-    alertTable: readSQL(__dirname, 'alertTable.sql'),
+    altertTable: readSQL(__dirname, 'alterTable.sql'),
-    alertView: readSQL(__dirname, 'alertView.sql'),
+    alterView: readSQL(__dirname, 'alterView.sql'),
+    alterMaterializedView: readSQL(__dirname, 'alterMaterializedView.sql'),
 };
 
-describe('SparkSQL Alert Syntax Tests', () => {
+describe('SparkSQL Alter Syntax Tests', () => {
     Object.keys(features).forEach((key) => {
         features[key].forEach((sql) => {
             it(sql, () => {

test/parser/spark/syntax/create.test.ts

@@ -7,6 +7,7 @@ const features = {
     createDatabase: readSQL(__dirname, 'createDatabase.sql'),
     createFunction: readSQL(__dirname, 'createFunction.sql'),
     createView: readSQL(__dirname, 'createView.sql'),
+    createMaterializedView: readSQL(__dirname, 'createMaterializedView.sql'),
 };
 
 describe('SparkSQL Create Syntax Tests', () => {

test/parser/spark/syntax/drop.test.ts

@@ -8,6 +8,7 @@ const features = {
     dropFunction: readSQL(__dirname, 'dropFunction.sql'),
     dropTable: readSQL(__dirname, 'dropTable.sql'),
     dropView: readSQL(__dirname, 'dropView.sql'),
+    dropMaterializedView: readSQL(__dirname, 'dropMaterializedView.sql'),
 };
 
 describe('SparkSQL Drop Syntax Tests', () => {

test/parser/spark/syntax/fixtures/alterMaterializedView.sql

@@ -0,0 +1,13 @@
+-- ALTER MATERIALIZED VIEW view_identifier ENABLE|DISABLE REWRITE;
+
+ALTER MATERIALIZED VIEW mv ENABLE REWRITE;
+
+ALTER MATERIALIZED VIEW userDB.mv ENABLE REWRITE;
+
+ALTER MATERIALIZED VIEW mv DISABLE REWRITE;
+
+-- ALTER MATERIALIZED VIEW view_identifier SET TBLPROPERTIES ( property_name=property_value, ... );
+
+ALTER MATERIALIZED VIEW mv SET TBLPROPERTIES ('mv.enableAutoRefresh'='true', 'mv.refreshInterval'='10min');
+
+ALTER MATERIALIZED VIEW userDB.mv SET TBLPROPERTIES ('mv.enableAutoRefresh'='true', 'mv.refreshInterval'='10min');

test/parser/spark/syntax/fixtures/createMaterializedView.sql

@@ -0,0 +1,99 @@
+/**
+** Notes:
+** 1. MATERIALIZED VIEW syntax has not been officially supported by Spark yet.
+** 2. The support for the following syntax is based on the self-developed component of dtstack.
+**/
+
+-- CREATE MATERIALIZED VIEW [ IF NOT EXISTS ] view_identifier
+--          [ USING data_source ]
+--          [ OPTIONS ( key1=val1, key2=val2, ... ) ]
+--          [ PARTITIONED BY ( col_name1, col_name2, ... ) ]
+--          [ SKEWED BY ( col_name, col_name, ... )
+--              ON ( ( col_value, col_value, ... ), ( col_value, col_value, ... ), ... )
+--              [ STORED AS DIRECTORIES ] ]
+--          [ CLUSTERED BY ( col_name3, col_name4, ... ) 
+--              [ SORTED BY ( col_name [ ASC | DESC ], ... ) ] 
+--              INTO num_buckets BUCKETS ]
+--          [ ROW FORMAT row_format ] 
+--          [ [ STORED AS file_format ]
+--              | STORED BY 'storage.handler.class.name' [ WITH SERDEPROPERTIES (...) ] ) ]
+--          [ LOCATION hdfs_path ]
+--          [ COMMENT table_comment ]
+--          [ TBLPROPERTIES (property_name=property_value, ...) ]
+--          AS select_statement;
+
+CREATE MATERIALIZED VIEW mv AS SELECT id FROM students;
+
+CREATE MATERIALIZED VIEW userDB.mv AS SELECT id FROM students;
+
+CREATE MATERIALIZED VIEW IF NOT EXISTS mv AS SELECT id FROM students;
+
+-- Use data source
+CREATE MATERIALIZED VIEW mv USING CSV AS SELECT id FROM students;
+
+-- Use parquet data source with parquet storage options
+CREATE MATERIALIZED VIEW mv 
+    USING PARQUET
+    OPTIONS (
+      'parquet.bloom.filter.enabled'='true',
+      'parquet.bloom.filter.enabled#age'='false'
+    )
+    AS SELECT id, age FROM students;
+
+CREATE MATERIALIZED VIEW mv 
+    PARTITIONED BY (id) 
+    AS SELECT id FROM students;
+
+CREATE MATERIALIZED VIEW mv 
+    SKEWED BY (id) ON (1,5,6) 
+    AS SELECT id FROM students;
+
+CREATE MATERIALIZED VIEW mv 
+    SKEWED BY (id) ON (1,5,6) STORED AS DIRECTORIES 
+    AS SELECT id FROM students;
+
+-- Create bucketed materialized view
+CREATE MATERIALIZED VIEW mv 
+    CLUSTERED BY (id) SORTED BY (id) INTO 3 BUCKETS
+    AS SELECT id FROM students;
+
+-- Use row format
+CREATE MATERIALIZED VIEW mv 
+    ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.RegexSerDe'
+    WITH SERDEPROPERTIES (
+        "input.regex" = ".*"
+    )
+    STORED AS TEXTFILE
+    AS SELECT id FROM students;
+
+-- Use file format with 'stored as'
+CREATE MATERIALIZED VIEW mv 
+    STORED AS TEXTFILE
+    AS SELECT id FROM students;
+
+-- Use file format with 'stored by'
+CREATE MATERIALIZED VIEW mv 
+    STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
+    WITH SERDEPROPERTIES (
+        "hbase.columns.mapping" = "cf:string",
+        "hbase.table.name" = "hbase_table_0"
+    )
+    AS SELECT id FROM students;
+
+-- Specify view storage path
+CREATE MATERIALIZED VIEW mv 
+    STORED AS PARQUET
+    LOCATION 'hdfs://mv/'
+    AS SELECT id FROM students;
+
+-- Add mv comment
+CREATE MATERIALIZED VIEW mv 
+    STORED AS PARQUET
+    LOCATION 'hdfs://mv/'
+    COMMENT 'A materialized view'
+    AS SELECT id FROM students;
+
+-- Set refresh properties
+CREATE MATERIALIZED VIEW mv 
+    TBLPROPERTIES("mv.enableAutoRefresh"="true", "mv.refreshInterval"="10min")
+    AS SELECT id FROM students;

test/parser/spark/syntax/fixtures/dropMaterializedView.sql

@@ -0,0 +1,7 @@
+-- DROP MATERIALIZED VIEW [ IF EXISTS ] view_identifier
+
+DROP MATERIALIZED VIEW mv;
+
+DROP MATERIALIZED VIEW userDB.mv;
+
+DROP MATERIALIZED VIEW IF EXISTS mv;

test/parser/spark/syntax/fixtures/optimize.sql

@@ -0,0 +1,7 @@
+-- OPTIMIZE view_identifier [ WHERE where_expression ] ZORDER BY col1, col2...
+
+OPTIMIZE students ZORDER BY id, name;
+
+OPTIMIZE userDB.students ZORDER BY id, name;
+
+OPTIMIZE students WHERE id=1 ZORDER BY id, name;

test/parser/spark/syntax/fixtures/refresh.sql

@@ -15,3 +15,9 @@ REFRESH FUNCTION db1.func1;
 REFRESH TABLE tbl1;
 
 REFRESH TABLE tempDB.view1;
+
+-- REFRESH MATERIALIZED VIEW view_identifier
+
+REFRESH MATERIALIZED VIEW mv;
+
+REFRESH MATERIALIZED VIEW userDB.mv;

test/parser/spark/syntax/fixtures/show.sql

@@ -99,3 +99,29 @@ SHOW VIEWS IN global_temp;
 SHOW VIEWS FROM default LIKE 'sam*';
 
 SHOW VIEWS LIKE 'sam|suj|temp*';
+
+-- SHOW MATERIALIZED VIEWS [ { FROM | IN } database_name ] [ LIKE? regex_pattern ];
+
+SHOW MATERIALIZED VIEWS;
+
+SHOW MATERIALIZED VIEWS IN userdb;
+
+SHOW MATERIALIZED VIEWS FROM userdb;
+
+SHOW MATERIALIZED VIEWS LIKE 'test_view1|test_view2';
+
+SHOW MATERIALIZED VIEWS IN userdb LIKE 'test_view1|test_view2';
+
+SHOW MATERIALIZED VIEWS FROM userdb LIKE 'test_view1|test_view2';
+
+SHOW MATERIALIZED VIEWS "test_*";
+
+SHOW MATERIALIZED VIEWS IN userdb "test_*";
+
+-- SHOW CREATE MATERIALIZED VIEW view_identifier [ AS SERDE ];
+
+SHOW CREATE MATERIALIZED VIEW mv;
+
+SHOW CREATE MATERIALIZED VIEW userdb.mv;
+
+SHOW CREATE MATERIALIZED VIEW mv AS SERDE;

test/parser/spark/syntax/optimize.test.ts

@@ -0,0 +1,16 @@
+import SparkSQL from 'src/parser/spark';
+import { readSQL } from 'test/helper';
+
+const parser = new SparkSQL();
+
+const features = {
+    set: readSQL(__dirname, 'optimize.sql'),
+};
+
+describe('Spark Optimize Syntax Tests', () => {
+    features.set.forEach((itemSql) => {
+        it(itemSql, () => {
+            expect(parser.validate(itemSql).length).toBe(0);
+        });
+    });
+});