h3n4l / snowsql-parser

The plsql-parser is a parser for Snowflake. It is based on the ANTLR4 and use the grammar from antlr4-grammars-plsql.

Build

Before build, you need to install the ANTLR4.

requirements:

• https://github.com/antlr/antlr4/blob/master/doc/getting-started.md
• https://github.com/antlr/antlr4/blob/master/doc/go-target.md

./build.sh

Update grammar

Manually change the grammar file in this project

1. run ./build.sh to generate the parser code.

From antlr4-grammars-plsql

1. Clone the SnowflakeLexer.g4 and SnowflakeParser.g4 grammar files from https://github.com/antlr/grammars-v4/tree/master/sql/snowflake.
2. run ./build.sh to generate the parser code.

Test the parser

Run TestSnowflakeSQLParser in parser_test.go to test the parser.

go test -v

References

• ANTLR4 Getting Started https://github.com/antlr/antlr4/blob/master/doc/getting-started.md
• ANTLR4 Go Garget https://github.com/antlr/antlr4/blob/master/doc/go-target.md