In order to completely address SQL parsing issues, let's reuse the same antlr4 grammar(Lexer & Parser) from ClickHouse server.
Related bugs: #479, #528, #533
Update:
ANTLR is overkill and it will introduce 300KB runtime, which is the opposite of what we need(reducing dependencies). As a result, we'll need to implement a simplified parser which is able recognize case-insensitive keywords, and understand if the given query contains multiple statements and type of each statement(DDL or DML, query or mutation etc.).
In order to completely address SQL parsing issues, let's reuse the same antlr4 grammar(Lexer & Parser) from ClickHouse server.
Related bugs: #479, #528, #533
Update:
ANTLR is overkill and it will introduce 300KB runtime, which is the opposite of what we need(reducing dependencies). As a result, we'll need to implement a simplified parser which is able recognize case-insensitive keywords, and understand if the given query contains multiple statements and type of each statement(DDL or DML, query or mutation etc.).