Simple-ddl-parser-2

Fixes:
1. Fixed a huge bug for incorrect parsing lines with 'USE' & 'GO' strings inside.
2. Fixed parsing for CREATE SCHEMA for Snowlake & Oracle DDLs

Improvements:
1. Added COMMENT statement for CREATE TABLE ddl (for SNOWFLAKE dialect support)
2. Added COMMENT statement for CREATE SCHEMA ddl (for SNOWFLAKE dialect support)

Fixes:

1. support Multiple SERDEPROPERTIES - https://github.com/xnuinside/simple-ddl-parser/issues/126
2. Fix for issue with LOCATION and TBLPROPERTIES clauses in CREATE TABLE LIKE - https://github.com/xnuinside/simple-ddl-parser/issues/125
3. LOCATION now works correctly with double quote strings

Improvements:

1. Added more explicit debug message on Statement errors - https://github.com/xnuinside/simple-ddl-parser/issues/116
2. Added support for "USING INDEX TABLESPACE" statement in ALTER - https://github.com/xnuinside/simple-ddl-parser/issues/119
3. Added support for IN statements in CHECKS - https://github.com/xnuinside/simple-ddl-parser/issues/121

New features:
1. Support SparkSQL USING - https://github.com/xnuinside/simple-ddl-parser/issues/117
Updates initiated by ticket https://github.com/xnuinside/simple-ddl-parser/issues/120:
2. In Parser you can use argument json_dump=True in method .run() if you want get result in JSON format.
- README updated

Fixes:
1. Added support for PARTITION BY one column without type
2. Alter table add constraint PRIMARY KEY - https://github.com/xnuinside/simple-ddl-parser/issues/119
3. Fix for paring SET statement - https://github.com/xnuinside/simple-ddl-parser/pull/122
4. Fix for disappeared columns without properties - https://github.com/xnuinside/simple-ddl-parser/issues/123

Fixes:

1. Fix for issue with 'at time zone' https://github.com/xnuinside/simple-ddl-parser/issues/112

New features:

1. Added flag to raise errors if parser cannot parse statement DDLParser(.., silent=False) - https://github.com/xnuinside/simple-ddl-parser/issues/109
2. Added flag to DDLParser(.., normalize_names=True) that change output of parser:
if flag is True (default 'False') then all identifiers will be returned without '[', '"' and other delimiters that used in different SQL dialects to separate custom names from reserved words & statements.
For example, if flag set 'True' and you pass this input:

CREATE TABLE [dbo].[TO_Requests](
[Request_ID] [int] IDENTITY(1,1) NOT NULL,
[user_id] [int]

In output you will have names like 'dbo' and 'TO_Requests', not '[dbo]' and '[TO_Requests]'.

Fixes:

1. Fix for the issue: https://github.com/xnuinside/simple-ddl-parser/issues/108 (reserved words can be used as table name after '.')

Fixes:
HQL:
1. fields_terminated_by now parses , as "','", not as '' previously

Common:
1. To output added 'if_not_exists' field in result to get availability 1-to-1 re-create ddl by metadata.