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release.md

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Version history

1.3.0, 2026-03-14

  • com.fasterxml.jackson.core:jackson-databind ......... 2.20.1 -> 2.21.1
  • org.apache.hadoop:hadoop-common ....................... 3.4.2 -> 3.4.3
  • org.apache.hadoop:hadoop-mapreduce-client-core ........ 3.4.2 -> 3.4.3
  • org.apache.parquet:parquet-avro ..................... 1.16.0 -> 1.17.0
  • org.apache.parquet:parquet-hadoop ................... 1.16.0 -> 1.17.0
  • org.apache.parquet:parquet-variant .................. 1.16.0 -> 1.17.0
  • org.junit.jupiter:junit-jupiter ....................... 6.0.1 -> 6.0.3
  • org.mockito:mockito-core ............................ 5.20.0 -> 5.23.0
  • improved JDBC compliance for supported statement creation overloads, statement closed-state reporting, and connection validation
  • replaced unsupported connection factory sentinel values with proper JDBC exceptions and wrapper behavior
  • aligned driver, CLI, and metadata version reporting with manifest-derived runtime metadata
  • expanded Parquet pushdown observability with documented PushdownInfo reporting and broader pruning coverage tests
  • JParqStatement no longer exposes its accidental BasicThreadFactory.Builder inheritance; downstream code should not rely on that implementation detail

1.2.0, 2025-12-08

  • add support for batch execution in prepared statements
  • Implemented full positional parameter binding for prepared statements with safe literal rendering to block SQL injection.
  • add support for named parameters in prepared statements
  • several minor bug fixes and improvements
  • improved test coverage and add more edge case tests

1.1.0, 2025-12-06

  • create a fat jar so the driver can be used in tools that require adding a jar to the classpath
  • optimize dependency footprint by excluding more transitive dependencies
  • improved schema support
    • parquet files in the root dir will have the schema PUBLIC
    • subdirectories correspond to a schema
  • Improve test coverage to >= 80%
  • Improve metadata support and accuracy
  • refactored function support for increased coherence and reduced coupling
  • add function mapping from jdbc escape syntax to sql standard function names for numeric, string, datetime, and system functions
  • several minor bug fixes and improvements
  • Improved support for quoted identifiers throughout the codebase
  • added a cli interface for interactive querying

1.0.0, 2025-11-24

  • Additional Derived Tables support:
    • LATERAL derived tables
    • VALUES table constructors
    • Support TABLE wrapper for UNNEST table functions
  • Complete set-operation coverage.
    • INTERSECT ALL
    • EXCEPT ALL
    • Support for nested set operations
  • Add simple schema validation
  • Bug fixes to UNNEST, CTE, EXCEPT
  • Add SQL compliance test suite to verify that all works
  • support || operator for string and binary concatenations
  • support for explicit NULLS FIRST and NULLS LAST in ORDER BY

0.11.0, 2025-11-14

  • Add ARRAY constructor function support
  • Fix column names and types in ResultSetMetaData
  • Adhere JParqDatabaseMetaData specifications for getColumns and getTables methods to the JDBC standard
  • Add support for derived tables
    • UNNEST with and without ordinality

0.10.0, 2025-11-12

  • Add support for grouping sets, rollup, and cube in the GROUP BY clause
  • Add support for qualified wildcards (table.*) in SELECT statements
  • Add support for the ARRAY constructor function to create array literals

0.9.0, 2025-11-09

  • Add support for Windowing functions i.e:
    • Ranking functions
      • ROW_NUMBER, RANK, DENSE_RANK, PERCENT_RANK, CUME_DIST, NTILE
    • Aggregate window functions
      • SUM, AVG, MIN, MAX, COUNT
    • Analytic Value/Navigation Functions
      • LAG, LEAD, FIRST_VALUE, LAST_VALUE, NTH_VALUE
  • Add support for JOIN USING clause

0.8.0, 2025-11-02

  • Add support for CTE (Common Table Expressions)

0.7.0, 2025-11-02

  • Add support for self joins.
  • Add support for UNION, and UNION ALL
  • Add support for INTERSECT and EXCEPT

0.6.0, 2025-11-01

  • Add support for INNER, LEFT, RIGHT, FULL, and CROSS Join

0.5.0, 2025-10-31

The following Additional SQL statements are now supported:

  • OFFSET and LIMIT support
  • DISTINCT support
  • Functions support
    • Date functions
    • Aggregate functions (count, sum, avg, max, min)
    • CAST support
    • coalesce (The COALESCE() function returns the first non-null value in a list.)
    • String functions (all SQL standard string function supported)
    • Numeric functions (abs, ceil, floor, round, sqrt, truncate, mod, power, exp, log, rand, sign, sin, cos, tan, asin, acos, atan, atan2, degrees, radians)
  • comments (line --) and block (/* */)
  • Subquery support
    • In the SELECT, FROM, WHERE, and HAVING Clause
  • GROUP BY support
    • COUNT(*) aggregation
    • HAVING clause with conditions
    • support aggregation functions and case statements in the GROUP BY and SELECT clause
  • exists support
  • any and all support

0.1.0, 2025-10-25

The following SQL statements are supported:

  • SELECT with support for
    • * to select all columns
    • alias support for columns and tables
  • SELECT statements with WHERE supporting:
    • BETWEEN, IN, LIKE operators
    • AND, OR, NOT logical operators
    • Comparison operators: =, !=, <, >, <=, >=
    • Null checks: IS NULL, IS NOT NULL
  • ORDER BY clause with multiple columns and ASC/DESC options