Module types 

Arrow to PostgreSQL type mapping for sink operations.

Maps Apache Arrow DataType to PostgreSQL SQL type names for:

• UNNEST array casts in upsert queries
• CREATE TABLE DDL generation
• COPY BINARY column type declarations

Functions

arrow_column_to_pg_array

Converts an Arrow array column to a boxed PostgreSQL array parameter for UNNEST queries.

arrow_to_pg_ddl_type

Maps an Arrow DataType to a PostgreSQL DDL type for CREATE TABLE.

arrow_type_to_pg_array_cast

Returns the PostgreSQL array type suffix for UNNEST cast expressions.

arrow_type_to_pg_sql

Maps an Arrow DataType to a PostgreSQL SQL type name for UNNEST casts.