Merge branch 'DBTOOLS-1822_fix_pg_parser' into 'master'

DBTOOLS-1822 fixed pg parser

See merge request codekeeper/pgcodekeeper-core!105

Author: AxelCat

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Improved parser rules for ClickHouse.
 - Improved migration script generation for tables and indexes with options in MS SQL.
+- Added the IS JSON parser rule for PostgreSQL.
 
 ### Fixed
 

CHANGELOG.ru.md

@@ -15,6 +15,7 @@
 
 - Улучшены правила парсера для ClickHouse.
 - Улучшена генерация скрипта миграции для таблиц и индексов с опциями в MS SQL.
+- Добавлено правило парсера IS JSON для PostgreSQL.
 
 ### Исправлено
 

src/main/antlr4/org/pgcodekeeper/core/parsers/antlr/pg/generated/SQLParser.g4

@@ -3489,6 +3489,7 @@ vex
   | vex IS NOT? OF LEFT_PAREN type_list RIGHT_PAREN
   | vex ISNULL
   | vex NOTNULL
+  | vex IS NOT? JSON (VALUE | SCALAR | ARRAY | OBJECT)? ((WITH | WITHOUT) UNIQUE KEYS?)?
   | <assoc=right> NOT vex
   | vex AND vex
   | vex OR vex

src/test/resources/org/pgcodekeeper/core/it/parser/pg/select.sql

@@ -1441,3 +1441,19 @@ COLUMNS (
         COLUMNS (
           author_id FOR ORDINALITY,
           author_name text PATH '$.name'))));
+
+SELECT js,
+  js IS JSON "json?",
+  js IS JSON SCALAR "scalar?",
+  js IS JSON OBJECT "object?",
+  js IS JSON ARRAY "array?"
+FROM (VALUES
+      ('123'), ('"abc"'), ('{"a": "b"}'), ('[1,2]'),('abc')) foo(js);
+SELECT js,
+  js IS JSON OBJECT "object?",
+  js IS JSON ARRAY "array?",
+  js IS JSON ARRAY WITH UNIQUE KEYS "array w. UK?",
+  js IS JSON ARRAY WITHOUT UNIQUE KEYS "array w/o UK?"
+FROM (VALUES ('[{"a":"1"},
+ {"b":"2","b":"3"}]')) foo(js);
+SELECT _txt IS JSON;

src/test/resources/org/pgcodekeeper/core/it/parser/pg/select_refs.txt

@@ -1112,4 +1112,7 @@ Reference: action = SELECT, offset = 86717, line number = 1415, charPositionInLi
 Reference: action = SELECT, offset = 86785, line number = 1416, charPositionInLine = 0
 Reference: action = SELECT, offset = 86888, line number = 1417, charPositionInLine = 0
 Reference: action = SELECT, offset = 86955, line number = 1418, charPositionInLine = 0
-Reference: action = SELECT, offset = 87054, line number = 1420, charPositionInLine = 0
+Reference: action = SELECT, offset = 87054, line number = 1420, charPositionInLine = 0
+Reference: action = SELECT, offset = 87780, line number = 1445, charPositionInLine = 0
+Reference: action = SELECT, offset = 87986, line number = 1452, charPositionInLine = 0
+Reference: action = SELECT, offset = 88223, line number = 1459, charPositionInLine = 0