codekingpro/portable-devtools

1/*-------------------------------------------------------------------------2 *3 * attoptcache.h4 *	  Attribute options cache.5 *6 * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group7 * Portions Copyright (c) 1994, Regents of the University of California8 *9 * src/include/utils/attoptcache.h10 *11 *-------------------------------------------------------------------------12 */13#ifndef ATTOPTCACHE_H14#define ATTOPTCACHE_H15 16/*17 * Attribute options.18 */19typedef struct AttributeOpts20{21	int32		vl_len_;		/* varlena header (do not touch directly!) */22	float8		n_distinct;23	float8		n_distinct_inherited;24} AttributeOpts;25 26extern AttributeOpts *get_attribute_options(Oid attrelid, int attnum);27 28#endif							/* ATTOPTCACHE_H */29