Revert 29854ee due to buildfarm failures

Reported-by: Tom Lane
Discussion: https://postgr.es/m/CAPpHfdvcnw3x7jdV3r52p4%3D5S4WUxBCzcQKB3JukQHoicv1LSQ%40mail.gmail.com

Author: akorotkov

doc/src/sgml/func.sgml

@@ -19181,29 +19181,6 @@ SELECT NULLIF(value, '(none)') ...
         <returnvalue>{[1,2)}</returnvalue>
        </para></entry>
       </row>
-
-      <row>
-       <entry role="func_table_entry"><para role="func_signature">
-        <indexterm>
-         <primary>unnest</primary>
-         <secondary>for multirange</secondary>
-        </indexterm>
-        <function>unnest</function> ( <type>anymultirange</type> )
-        <returnvalue>setof anyrange</returnvalue>
-       </para>
-       <para>
-        Expands a multirange into a set of ranges.
-        The ranges are read out in storage order (ascending).
-       </para>
-       <para>
-        <literal>unnest('{[1,2), [3,4)}'::int4multirange)</literal>
-        <returnvalue></returnvalue>
-<programlisting>
- [1,2)
- [3,4)
-</programlisting>
-       </para></entry>
-      </row>
      </tbody>
     </tgroup>
    </table>

doc/src/sgml/rangetypes.sgml

@@ -266,18 +266,6 @@ SELECT '[4,4)'::int4range;
 SELECT '{}'::int4multirange;
 SELECT '{[3,7)}'::int4multirange;
 SELECT '{[3,7), [8,9)}'::int4multirange;
-</programlisting>
-  </para>
-
-  <para>
-   A multirange can be cast to an array of ranges of the same type.
-  </para>
-
-  <para>
-  Examples:
-<programlisting>
-SELECT '{[3,7), [8,9)}'::int4multirange::int4range[];
-SELECT '{[1.0,14.0), [20.0,25.0)}'::nummultirange::numrange[];
 </programlisting>
   </para>
 

src/backend/commands/typecmds.c

@@ -114,11 +114,7 @@ static void makeRangeConstructors(const char *name, Oid namespace,
 								  Oid rangeOid, Oid subtype);
 static void makeMultirangeConstructors(const char *name, Oid namespace,
 									   Oid multirangeOid, Oid rangeOid,
-									   Oid rangeArrayOid,
-									   Oid *oneArgContructorOid);
-static void makeMultirangeCasts(const char *name, Oid namespace,
-								Oid multirangeOid, Oid rangeOid,
-								Oid rangeArrayOid, Oid singleArgContructorOid);
+									   Oid rangeArrayOid, Oid *castFuncOid);
 static Oid	findTypeInputFunction(List *procname, Oid typeOid);
 static Oid	findTypeOutputFunction(List *procname, Oid typeOid);
 static Oid	findTypeReceiveFunction(List *procname, Oid typeOid);
@@ -1369,7 +1365,7 @@ DefineRange(CreateRangeStmt *stmt)
 	ListCell   *lc;
 	ObjectAddress address;
 	ObjectAddress mltrngaddress PG_USED_FOR_ASSERTS_ONLY;
-	Oid			singleArgContructorOid;
+	Oid			castFuncOid;
 
 	/* Convert list of names to a name and namespace */
 	typeNamespace = QualifiedNameGetCreationNamespace(stmt->typeName,
@@ -1721,12 +1717,10 @@ DefineRange(CreateRangeStmt *stmt)
 	makeRangeConstructors(typeName, typeNamespace, typoid, rangeSubtype);
 	makeMultirangeConstructors(multirangeTypeName, typeNamespace,
 							   multirangeOid, typoid, rangeArrayOid,
-							   &singleArgContructorOid);
+							   &castFuncOid);
 
-	/* Create casts for this multirange type */
-	makeMultirangeCasts(multirangeTypeName, typeNamespace,
-						multirangeOid, typoid, rangeArrayOid,
-						singleArgContructorOid);
+	/* Create cast from the range type to its multirange type */
+	CastCreate(typoid, multirangeOid, castFuncOid, 'e', 'f', DEPENDENCY_INTERNAL);
 
 	pfree(multirangeTypeName);
 	pfree(multirangeArrayName);
@@ -1814,13 +1808,13 @@ makeRangeConstructors(const char *name, Oid namespace,
  * If we had an anyrangearray polymorphic type we could use it here,
  * but since each type has its own constructor name there's no need.
  *
- * Sets oneArgContructorOid to the oid of the new constructor that can be used
+ * Sets castFuncOid to the oid of the new constructor that can be used
  * to cast from a range to a multirange.
  */
 static void
 makeMultirangeConstructors(const char *name, Oid namespace,
 						   Oid multirangeOid, Oid rangeOid, Oid rangeArrayOid,
-						   Oid *oneArgContructorOid)
+						   Oid *castFuncOid)
 {
 	ObjectAddress myself,
 				referenced;
@@ -1910,7 +1904,7 @@ makeMultirangeConstructors(const char *name, Oid namespace,
 	/* ditto */
 	recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
 	pfree(argtypes);
-	*oneArgContructorOid = myself.objectId;
+	*castFuncOid = myself.objectId;
 
 	/* n-arg constructor - vararg */
 	argtypes = buildoidvector(&rangeArrayOid, 1);
@@ -1955,76 +1949,6 @@ makeMultirangeConstructors(const char *name, Oid namespace,
 	pfree(parameterModes);
 }
 
-/*
- * Create casts for the multirange type.  The first cast makes multirange from
- * range, and it's based on the single-argument constructor.  The second cast
- * makes an array of ranges from multirange.
- */
-static void
-makeMultirangeCasts(const char *name, Oid namespace,
-					Oid multirangeOid, Oid rangeOid, Oid rangeArrayOid,
-					Oid singleArgContructorOid)
-{
-	ObjectAddress myself,
-				referenced;
-	oidvector  *argtypes;
-
-	/*
-	 * Create cast from range to multirange using the existing single-argument
-	 * constructor procedure.
-	 */
-	CastCreate(rangeOid, multirangeOid, singleArgContructorOid, 'e', 'f',
-			   DEPENDENCY_INTERNAL);
-
-	referenced.classId = TypeRelationId;
-	referenced.objectId = multirangeOid;
-	referenced.objectSubId = 0;
-
-	/* multirange_to_array() function */
-	argtypes = buildoidvector(&multirangeOid, 1);
-	myself = ProcedureCreate("multirange_to_array", /* name */
-							 namespace,
-							 false, /* replace */
-							 false, /* returns set */
-							 rangeArrayOid, /* return type */
-							 BOOTSTRAP_SUPERUSERID, /* proowner */
-							 INTERNALlanguageId,	/* language */
-							 F_FMGR_INTERNAL_VALIDATOR,
-							 "multirange_to_array", /* prosrc */
-							 NULL,	/* probin */
-							 NULL,	/* prosqlbody */
-							 PROKIND_FUNCTION,
-							 false, /* security_definer */
-							 false, /* leakproof */
-							 true,	/* isStrict */
-							 PROVOLATILE_IMMUTABLE, /* volatility */
-							 PROPARALLEL_SAFE,	/* parallel safety */
-							 argtypes,	/* parameterTypes */
-							 PointerGetDatum(NULL), /* allParameterTypes */
-							 PointerGetDatum(NULL), /* parameterModes */
-							 PointerGetDatum(NULL), /* parameterNames */
-							 NIL,	/* parameterDefaults */
-							 PointerGetDatum(NULL), /* trftypes */
-							 PointerGetDatum(NULL), /* proconfig */
-							 InvalidOid,	/* prosupport */
-							 1.0,	/* procost */
-							 0.0);	/* prorows */
-
-	/*
-	 * Make the multirange_to_array() function internally-dependent on the
-	 * multirange type so that they go away silently when the type is dropped.
-	 */
-	recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
-	pfree(argtypes);
-
-	/*
-	 * Create cast from multirange to the array of ranges using
-	 * multirange_to_array() function.
-	 */
-	CastCreate(multirangeOid, rangeArrayOid, myself.objectId, 'e', 'f',
-			   DEPENDENCY_INTERNAL);
-}
-
 /*
  * Find suitable I/O and other support functions for a type.
  *

src/backend/utils/adt/multirangetypes.c

@@ -34,7 +34,6 @@
 
 #include "access/tupmacs.h"
 #include "common/hashfn.h"
-#include "funcapi.h"
 #include "lib/stringinfo.h"
 #include "libpq/pqformat.h"
 #include "miscadmin.h"
@@ -1069,39 +1068,6 @@ multirange_constructor0(PG_FUNCTION_ARGS)
 	PG_RETURN_MULTIRANGE_P(make_multirange(mltrngtypid, rangetyp, 0, NULL));
 }
 
-/*
- * Cast multirange to an array of ranges.
- */
-Datum
-multirange_to_array(PG_FUNCTION_ARGS)
-{
-	ArrayBuildState *astate = NULL;
-	MultirangeType *mr = PG_GETARG_MULTIRANGE_P(0);
-	TypeCacheEntry *typcache;
-	int			i;
-
-	typcache = multirange_get_typcache(fcinfo, MultirangeTypeGetOid(mr));
-
-	astate = initArrayResult(typcache->rngtype->type_id,
-							 CurrentMemoryContext,
-							 false);
-
-	for (i = 0; i < mr->rangeCount; i++)
-	{
-		RangeType  *r;
-
-		r = multirange_get_range(typcache->rngtype, mr, i);
-		astate = accumArrayResult(astate,
-								  RangeTypePGetDatum(r),
-								  false,
-								  typcache->rngtype->type_id,
-								  CurrentMemoryContext);
-	}
-
-	PG_RETURN_ARRAYTYPE_P(makeArrayResult(astate, CurrentMemoryContext));
-}
-
-
 
 /* multirange, multirange -> multirange type functions */
 
@@ -2679,78 +2645,6 @@ range_merge_from_multirange(PG_FUNCTION_ARGS)
 	PG_RETURN_RANGE_P(result);
 }
 
-/* Turn multirange into a set of ranges */
-Datum
-multirange_unnest(PG_FUNCTION_ARGS)
-{
-	typedef struct
-	{
-		MultirangeType *mr;
-		TypeCacheEntry *typcache;
-		int			index;
-	} multirange_unnest_fctx;
-
-	FuncCallContext *funcctx;
-	multirange_unnest_fctx *fctx;
-	MemoryContext oldcontext;
-
-	/* stuff done only on the first call of the function */
-	if (SRF_IS_FIRSTCALL())
-	{
-		MultirangeType *mr;
-
-		/* create a function context for cross-call persistence */
-		funcctx = SRF_FIRSTCALL_INIT();
-
-		/*
-		 * switch to memory context appropriate for multiple function calls
-		 */
-		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
-
-		/*
-		 * Get the multirange value and detoast if needed.  We can't do this
-		 * earlier because if we have to detoast, we want the detoasted copy
-		 * to be in multi_call_memory_ctx, so it will go away when we're done
-		 * and not before.  (If no detoast happens, we assume the originally
-		 * passed multirange will stick around till then.)
-		 */
-		mr = PG_GETARG_MULTIRANGE_P(0);
-
-		/* allocate memory for user context */
-		fctx = (multirange_unnest_fctx *) palloc(sizeof(multirange_unnest_fctx));
-
-		/* initialize state */
-		fctx->mr = mr;
-		fctx->index = 0;
-		fctx->typcache = lookup_type_cache(MultirangeTypeGetOid(mr),
-										   TYPECACHE_MULTIRANGE_INFO);
-
-		funcctx->user_fctx = fctx;
-		MemoryContextSwitchTo(oldcontext);
-	}
-
-	/* stuff done on every call of the function */
-	funcctx = SRF_PERCALL_SETUP();
-	fctx = funcctx->user_fctx;
-
-	if (fctx->index < fctx->mr->rangeCount)
-	{
-		RangeType  *range;
-
-		range = multirange_get_range(fctx->typcache->rngtype,
-									 fctx->mr,
-									 fctx->index);
-		fctx->index++;
-
-		SRF_RETURN_NEXT(funcctx, RangeTypePGetDatum(range));
-	}
-	else
-	{
-		/* do when there is no more left */
-		SRF_RETURN_DONE(funcctx);
-	}
-}
-
 /* Hash support */
 
 /* hash a multirange value */

src/include/catalog/catversion.h

@@ -53,6 +53,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	202106152
+#define CATALOG_VERSION_NO	202106151
 
 #endif

src/include/catalog/pg_cast.dat

@@ -548,24 +548,4 @@
 { castsource => 'tstzrange', casttarget => 'tstzmultirange',
   castfunc => 'tstzmultirange(tstzrange)', castcontext => 'e',
   castmethod => 'f' },
-
-# multirange to array
-{ castsource => 'int4multirange', casttarget => '_int4range',
-  castfunc => 'multirange_to_array(int4multirange)', castcontext => 'e',
-  castmethod => 'f' }
-{ castsource => 'int8multirange', casttarget => '_int8range',
-  castfunc => 'multirange_to_array(int8multirange)', castcontext => 'e',
-  castmethod => 'f' }
-{ castsource => 'nummultirange', casttarget => '_numrange',
-  castfunc => 'multirange_to_array(nummultirange)', castcontext => 'e',
-  castmethod => 'f' }
-{ castsource => 'datemultirange', casttarget => '_daterange',
-  castfunc => 'multirange_to_array(datemultirange)', castcontext => 'e',
-  castmethod => 'f' }
-{ castsource => 'tsmultirange', casttarget => '_tsrange',
-  castfunc => 'multirange_to_array(tsmultirange)', castcontext => 'e',
-  castmethod => 'f' }
-{ castsource => 'tstzmultirange', casttarget => '_tstzrange',
-  castfunc => 'multirange_to_array(tstzmultirange)', castcontext => 'e',
-  castmethod => 'f' }
 ]

src/include/catalog/pg_proc.dat

@@ -10537,29 +10537,6 @@
   proname => 'range_intersect_agg', prokind => 'a', proisstrict => 'f',
   prorettype => 'anymultirange', proargtypes => 'anymultirange',
   prosrc => 'aggregate_dummy' },
-{ oid => '1293', descr => 'expand multirange to set of ranges',
-  proname => 'unnest', prorows => '100',
-  proretset => 't', prorettype => 'anyrange', proargtypes => 'anymultirange',
-  prosrc => 'multirange_unnest' },
-
-{ oid => '4544', descr => 'convert multirange to array of ranges',
-  proname => 'multirange_to_array', prorettype => '_int4range',
-  proargtypes => 'int4multirange', prosrc => 'multirange_to_array' },
-{ oid => '4545', descr => 'convert multirange to array of ranges',
-  proname => 'multirange_to_array', prorettype => '_int8range',
-  proargtypes => 'int8multirange', prosrc => 'multirange_to_array' },
-{ oid => '4546', descr => 'convert multirange to array of ranges',
-  proname => 'multirange_to_array', prorettype => '_numrange',
-  proargtypes => 'nummultirange', prosrc => 'multirange_to_array' },
-{ oid => '4547', descr => 'convert multirange to array of ranges',
-  proname => 'multirange_to_array', prorettype => '_daterange',
-  proargtypes => 'datemultirange', prosrc => 'multirange_to_array' },
-{ oid => '4548', descr => 'convert multirange to array of ranges',
-  proname => 'multirange_to_array', prorettype => '_tsrange',
-  proargtypes => 'tsmultirange', prosrc => 'multirange_to_array' },
-{ oid => '4549', descr => 'convert multirange to array of ranges',
-  proname => 'multirange_to_array', prorettype => '_tstzrange',
-  proargtypes => 'tstzmultirange', prosrc => 'multirange_to_array' },
 
 # date, time, timestamp constructors
 { oid => '3846', descr => 'construct date',