1 files changed, 100 insertions, 0 deletions
diff --git a/src/include/catalog/pg_collation.h b/src/include/catalog/pg_collation.h
new file mode 100644
index 0000000..bfa3568
--- /dev/null
+++ b/src/include/catalog/pg_collation.h
@@ -0,0 +1,100 @@
+/*-------------------------------------------------------------------------
+ *
+ * pg_collation.h
+ *	  definition of the "collation" system catalog (pg_collation)
+ *
+ *
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/catalog/pg_collation.h
+ *
+ * NOTES
+ *	  The Catalog.pm module reads this file and derives schema
+ *	  information.
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PG_COLLATION_H
+#define PG_COLLATION_H
+
+#include "catalog/genbki.h"
+#include "catalog/pg_collation_d.h"
+
+/* ----------------
+ *		pg_collation definition.  cpp turns this into
+ *		typedef struct FormData_pg_collation
+ * ----------------
+ */
+CATALOG(pg_collation,3456,CollationRelationId)
+{
+	Oid			oid;			/* oid */
+	NameData	collname;		/* collation name */
+
+	/* OID of namespace containing this collation */
+	Oid			collnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
+
+	/* owner of collation */
+	Oid			collowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
+	char		collprovider;	/* see constants below */
+	bool		collisdeterministic BKI_DEFAULT(t);
+	int32		collencoding;	/* encoding for this collation; -1 = "all" */
+#ifdef CATALOG_VARLEN			/* variable-length fields start here */
+	text		collcollate BKI_DEFAULT(_null_);	/* LC_COLLATE setting */
+	text		collctype BKI_DEFAULT(_null_);	/* LC_CTYPE setting */
+	text		colliculocale BKI_DEFAULT(_null_);	/* ICU locale ID */
+	text		collicurules BKI_DEFAULT(_null_);	/* ICU collation rules */
+	text		collversion BKI_DEFAULT(_null_);	/* provider-dependent
+													 * version of collation
+													 * data */
+#endif
+} FormData_pg_collation;
+
+/* ----------------
+ *		Form_pg_collation corresponds to a pointer to a row with
+ *		the format of pg_collation relation.
+ * ----------------
+ */
+typedef FormData_pg_collation *Form_pg_collation;
+
+DECLARE_TOAST(pg_collation, 6175, 6176);
+
+DECLARE_UNIQUE_INDEX(pg_collation_name_enc_nsp_index, 3164, CollationNameEncNspIndexId, on pg_collation using btree(collname name_ops, collencoding int4_ops, collnamespace oid_ops));
+DECLARE_UNIQUE_INDEX_PKEY(pg_collation_oid_index, 3085, CollationOidIndexId, on pg_collation using btree(oid oid_ops));
+
+#ifdef EXPOSE_TO_CLIENT_CODE
+
+#define COLLPROVIDER_DEFAULT	'd'
+#define COLLPROVIDER_ICU		'i'
+#define COLLPROVIDER_LIBC		'c'
+
+static inline const char *
+collprovider_name(char c)
+{
+	switch (c)
+	{
+		case COLLPROVIDER_ICU:
+			return "icu";
+		case COLLPROVIDER_LIBC:
+			return "libc";
+		default:
+			return "???";
+	}
+}
+
+#endif							/* EXPOSE_TO_CLIENT_CODE */
+
+
+extern Oid	CollationCreate(const char *collname, Oid collnamespace,
+							Oid collowner,
+							char collprovider,
+							bool collisdeterministic,
+							int32 collencoding,
+							const char *collcollate, const char *collctype,
+							const char *colliculocale,
+							const char *collicurules,
+							const char *collversion,
+							bool if_not_exists,
+							bool quiet);
+
+#endif							/* PG_COLLATION_H */