pg_query 6.1.1

PostgreSQL parser that uses the actual PostgreSQL server source to parse SQL queries and return the internal PostgreSQL parse tree.
Documentation 
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/*-------------------------------------------------------------------------
 *
 * arch-hppa.h
 *	  Atomic operations considerations specific to HPPA
 *
 * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * NOTES:
 *
 * src/include/port/atomics/arch-hppa.h
 *
 *-------------------------------------------------------------------------
 */

/* HPPA doesn't do either read or write reordering */
#define pg_memory_barrier_impl()		pg_compiler_barrier_impl()