ODBC to Parquet

Query ODBC databases and save the result in a parquet file.

Usage

shell odbc2parquet run "Driver={ODBC Driver 17 for SQL Server};Server=localhost;UID=SA;PWD=<YourStrong@Passw0rd>;" "SELECT * FROM Birthdays" out.par1

Use odbc2parquet --help to see all option.

Installation

Currently only deployed via cargo. Use cargo +nightly install odbc2parquet to install it.

Mapping of types

The tool queries the ODBC Data source for type information and maps it to parquet type as such:

| ODBC SQL Type | Parquet Logical Type | |---------------|------------------------| | Double | Double | | Float | Float | | Small Integer | Int16 | | Integer | Int32 | | Big Int | Int64 | | Date | Date | | Timestamp | Timestamp Microseconds | | All others | Utf8 Byte Array |