SPI_START_TRANSACTION(3)                         PostgreSQL 16.2 Documentation

NAME
       SPI_start_transaction - obsolete function

SYNOPSIS
       void SPI_start_transaction(void)

DESCRIPTION
       SPI_start_transaction does nothing, and exists only for code
       compatibility with earlier PostgreSQL releases. It used to be required
       after calling SPI_commit or SPI_rollback, but now those functions start
       a new transaction automatically.

PostgreSQL 16.2                      2024             SPI_START_TRANSACTION(3)