Remove special handling of LATERAL keyword

That's for now too much of an edge case functionality.
Plus there were no tests to veryfy what we wanted to achieve.

Author: nene

src/core/token.ts

@@ -54,7 +54,6 @@ export const isToken = {
   BY: testToken({ value: 'BY', type: TokenType.RESERVED_KEYWORD }),
   END: testToken({ value: 'END', type: TokenType.BLOCK_END }),
   FROM: testToken({ value: 'FROM', type: TokenType.RESERVED_COMMAND }),
-  LATERAL: testToken({ value: 'LATERAL', type: TokenType.RESERVED_DEPENDENT_CLAUSE }),
   LIMIT: testToken({ value: 'LIMIT', type: TokenType.RESERVED_COMMAND }),
   SELECT: testToken({ value: 'SELECT', type: TokenType.RESERVED_COMMAND }),
   SET: testToken({ value: 'SET', type: TokenType.RESERVED_COMMAND }),

src/languages/mysql.formatter.ts

@@ -683,6 +683,7 @@ const reservedKeywords = [
   'KEY_BLOCK_SIZE',
   'LANGUAGE',
   'LAST',
+  'LATERAL',
   'LEADING',
   'LEAVE',
   'LEAVES',
@@ -1311,7 +1312,7 @@ const reservedBinaryCommands = [
  * keywords that follow a previous Statement, must be attached to subsequent data
  * can be fully inline or on newline with optional indent
  */
-const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE', 'ELSEIF', 'LATERAL'];
+const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE', 'ELSEIF'];
 
 // https://dev.mysql.com/doc/refman/8.0/en/
 export default class MySqlFormatter extends Formatter {
@@ -1350,12 +1351,6 @@ export default class MySqlFormatter extends Formatter {
   }
 
   tokenOverride(token: Token) {
-    // [LATERAL] ( ...
-    if (isToken.LATERAL(token) && this.tokenLookAhead().type === TokenType.BLOCK_START) {
-      // This is a subquery, treat it like a join
-      return { type: TokenType.RESERVED_LOGICAL_OPERATOR, value: token.value };
-    }
-
     // [SET] ( ...
     if (isToken.SET(token) && this.tokenLookAhead().value === '(') {
       // This is SET datatype, not SET statement

src/languages/plsql.formatter.ts

@@ -501,12 +501,6 @@ export default class PlSqlFormatter extends Formatter {
       return { type: TokenType.RESERVED_KEYWORD, value: token.value };
     }
 
-    // [LATERAL] ( ...
-    if (isToken.LATERAL(token) && this.tokenLookAhead().type === TokenType.BLOCK_START) {
-      // This is a subquery, treat it like a join
-      return { type: TokenType.RESERVED_LOGICAL_OPERATOR, value: token.value };
-    }
-
     return token;
   }
 }

src/languages/postgresql.formatter.ts

@@ -1,6 +1,5 @@
 import Formatter from '../core/Formatter';
 import Tokenizer from '../core/Tokenizer';
-import { isToken, Token, TokenType } from '../core/token'; // convert to partial type import in TS 4.5
 import type { StringPatternType } from '../core/regexFactory';
 import { dedupe } from '../utils';
 
@@ -1023,6 +1022,7 @@ const reservedKeywords = [
   'LANGUAGE',
   'LARGE',
   'LAST',
+  'LATERAL',
   'LEADING',
   'LEAKPROOF',
   'LEVEL',
@@ -1616,7 +1616,7 @@ const reservedBinaryCommands = [
  * keywords that follow a previous Statement, must be attached to subsequent data
  * can be fully inline or on newline with optional indent
  */
-const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE', 'LATERAL'];
+const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE'];
 
 const binaryOperators = [
   '<<',
@@ -1699,14 +1699,4 @@ export default class PostgreSqlFormatter extends Formatter {
       operators: PostgreSqlFormatter.operators,
     });
   }
-
-  tokenOverride(token: Token) {
-    // [LATERAL] ( ...
-    if (isToken.LATERAL(token) && this.tokenLookAhead().type === TokenType.BLOCK_START) {
-      // This is a subquery, treat it like a join
-      return { type: TokenType.RESERVED_LOGICAL_OPERATOR, value: token.value };
-    }
-
-    return token;
-  }
 }

src/languages/sparksql.formatter.ts

@@ -709,6 +709,7 @@ const reservedCommands = [
   // other
   'FROM',
   'INSERT',
+  'LATERAL VIEW',
   'UPDATE',
   'WINDOW', // verify
 ];
@@ -772,7 +773,7 @@ const reservedBinaryCommands = [
  * keywords that follow a previous Statement, must be attached to subsequent data
  * can be fully inline or on newline with optional indent
  */
-const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE', 'LATERAL VIEW'];
+const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE'];
 
 // http://spark.apache.org/docs/latest/sql-programming-guide.html
 export default class SparkSqlFormatter extends Formatter {

src/languages/tsql.formatter.ts

@@ -836,6 +836,7 @@ const reservedKeywords = {
     'LANGUAGE',
     'LARGE',
     'LAST',
+    'LATERAL',
     'LEADING',
     'LESS',
     'LEVEL',
@@ -1225,7 +1226,7 @@ const reservedBinaryCommands = [
  * keywords that follow a previous Statement, must be attached to subsequent data
  * can be fully inline or on newline with optional indent
  */
-const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE', 'LATERAL'];
+const reservedDependentClauses = ['WHEN', 'THEN', 'ELSE'];
 
 // https://docs.microsoft.com/en-us/sql/t-sql/language-reference?view=sql-server-ver15
 export default class TSqlFormatter extends Formatter {