Alex Qyoun-ae
Software Engineer at cube-js
Summary
🤩
RockstarAlex Qyoun-ae is a software engineer with 12 years of experience specializing in back-end systems and SQL engine development. Currently contributing at Cube.js, they have extended core query planning and compilation features to support a wide range of SQL commands (SHOW, EXPLAIN, SET, USE) that improve information schema and analytics workflows. Alex is also an active open-source contributor to the Rust SQL parser used by Apache DataFusion, adding support for advanced syntax like SELECT INTO, PostgreSQL array subquery constructors, and expressions in LIMIT/OFFSET. Their work demonstrates a practical focus on making SQL dialects more expressive and interoperable across analytics platforms. Colleagues describe them as a pragmatic problem-solver who bridges deep technical detail with product-facing impacts. An interesting detail: they routinely tackle obscure SQL edge cases that unlock interoperability between OLAP engines and BI tools.
12 years of coding experience
Github Skills (11)
fusion10
query-optimization10
sql-parser10
parser10
rust10
postgresql10
parsing10
sql10
parse10
big-data9
database-management9
Programming languages (8)
Github contributions (5)
cube-js/cube
Jan 2022 - Jan 2023
📊 Cube’s universal semantic layer platform is the next evolution of OLAP technology for AI, BI, spreadsheets, and embedded analytics
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 121 reviews, 122 commits in 11 months
Contributions summary:Alex primarily contributed to enhancing the Cube.js project by implementing support for new SQL features. Their work focused on extending the SQL query engine by adding support for SHOW COLUMNS, SHOW TABLES, SHOW COLLATION, EXPLAIN TABLE, EXPLAIN, SET, and USE functionalities. These contributions involved modifications to core components related to query planning, compilation, and the information schema, demonstrating a focus on expanding the database's SQL capabilities.
cubeanalyticsdataathenachart
apache/datafusion-sqlparser-rs
May 2022 - Sep 2022
Extensible SQL Lexer and Parser for Rust
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 reviews, 9 commits, 9 PRs in 4 months
Contributions summary:Alex contributed to the datafusion-sqlparser-rs project by implementing and extending the SQL parser. Their work focused on adding support for new SQL syntax, including `SELECT INTO`, `SHOW TABLES`, `SHOW COLLATION`, and expressions within `LIMIT`/`OFFSET` clauses. They also added support for PostgreSQL array subquery constructors and the `USE` command. These changes expanded the parser's capabilities, allowing it to handle a wider range of SQL dialects.
sql-parserrustsqlextensibleparser
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