Remove some more PG12 and PG13 code

src/import/planner.c

@@ -38,13 +38,6 @@
 #include "compat/compat.h"
 #include "planner.h"
 
-#if PG_VERSION_NUM < 130003
-static EquivalenceMember *find_ec_member_matching_expr(EquivalenceClass *ec, Expr *expr,
-													   Relids relids);
-static EquivalenceMember *find_computable_ec_member(PlannerInfo *root, EquivalenceClass *ec,
-													List *exprs, Relids relids,
-													bool require_parallel_safe);
-#endif
 static Node *replace_nestloop_params(PlannerInfo *root, Node *expr);
 static Node *replace_nestloop_params_mutator(Node *node, PlannerInfo *root);
 static Plan *inject_projection_plan(Plan *subplan, List *tlist, bool parallel_safe);
@@ -371,160 +364,6 @@ ts_get_variable_range(PlannerInfo *root, VariableStatData *vardata, Oid sortop,
 	return have_data;
 }
 
-#if PG_VERSION_NUM < 130003
-/*
- * find_ec_member_matching_expr
- *		Locate an EquivalenceClass member matching the given expr, if any;
- *		return NULL if no match.
- *
- * "Matching" is defined as "equal after stripping RelabelTypes".
- * This is used for identifying sort expressions, and we need to allow
- * binary-compatible relabeling for some cases involving binary-compatible
- * sort operators.
- *
- * Child EC members are ignored unless they belong to given 'relids'.
- */
-static EquivalenceMember *
-find_ec_member_matching_expr(EquivalenceClass *ec, Expr *expr, Relids relids)
-{
-	ListCell *lc;
-
-	/* We ignore binary-compatible relabeling on both ends */
-	while (expr && IsA(expr, RelabelType))
-		expr = ((RelabelType *) expr)->arg;
-
-	foreach (lc, ec->ec_members)
-	{
-		EquivalenceMember *em = (EquivalenceMember *) lfirst(lc);
-		Expr *emexpr;
-
-		/*
-		 * We shouldn't be trying to sort by an equivalence class that
-		 * contains a constant, so no need to consider such cases any further.
-		 */
-		if (em->em_is_const)
-			continue;
-
-		/*
-		 * Ignore child members unless they belong to the requested rel.
-		 */
-		if (em->em_is_child && !bms_is_subset(em->em_relids, relids))
-			continue;
-
-		/*
-		 * Match if same expression (after stripping relabel).
-		 */
-		emexpr = em->em_expr;
-		while (emexpr && IsA(emexpr, RelabelType))
-			emexpr = ((RelabelType *) emexpr)->arg;
-
-		if (equal(emexpr, expr))
-			return em;
-	}
-
-	return NULL;
-}
-
-/*
- * is_exprlist_member
- *	  Subroutine for find_computable_ec_member: is "node" in "exprs"?
- *
- * Per the requirements of that function, "exprs" might or might not have
- * TargetEntry superstructure.
- */
-static bool
-is_exprlist_member(Expr *node, List *exprs)
-{
-	ListCell *lc;
-
-	foreach (lc, exprs)
-	{
-		Expr *expr = (Expr *) lfirst(lc);
-
-		if (expr && IsA(expr, TargetEntry))
-			expr = ((TargetEntry *) expr)->expr;
-
-		if (equal(node, expr))
-			return true;
-	}
-	return false;
-}
-
-/*
- * find_computable_ec_member
- *		Locate an EquivalenceClass member that can be computed from the
- *		expressions appearing in "exprs"; return NULL if no match.
- *
- * "exprs" can be either a list of bare expression trees, or a list of
- * TargetEntry nodes.  Either way, it should contain Vars and possibly
- * Aggrefs and WindowFuncs, which are matched to the corresponding elements
- * of the EquivalenceClass's expressions.
- *
- * Unlike find_ec_member_matching_expr, there's no special provision here
- * for binary-compatible relabeling.  This is intentional: if we have to
- * compute an expression in this way, setrefs.c is going to insist on exact
- * matches of Vars to the source tlist.
- *
- * Child EC members are ignored unless they belong to given 'relids'.
- * Also, non-parallel-safe expressions are ignored if 'require_parallel_safe'.
- *
- * Note: some callers pass root == NULL for notational reasons.  This is OK
- * when require_parallel_safe is false.
- */
-static EquivalenceMember *
-find_computable_ec_member(PlannerInfo *root, EquivalenceClass *ec, List *exprs, Relids relids,
-						  bool require_parallel_safe)
-{
-	ListCell *lc;
-
-	foreach (lc, ec->ec_members)
-	{
-		EquivalenceMember *em = (EquivalenceMember *) lfirst(lc);
-		List *exprvars;
-		ListCell *lc2;
-
-		/*
-		 * We shouldn't be trying to sort by an equivalence class that
-		 * contains a constant, so no need to consider such cases any further.
-		 */
-		if (em->em_is_const)
-			continue;
-
-		/*
-		 * Ignore child members unless they belong to the requested rel.
-		 */
-		if (em->em_is_child && !bms_is_subset(em->em_relids, relids))
-			continue;
-
-		/*
-		 * Match if all Vars and quasi-Vars are available in "exprs".
-		 */
-		exprvars = pull_var_clause((Node *) em->em_expr,
-								   PVC_INCLUDE_AGGREGATES | PVC_INCLUDE_WINDOWFUNCS |
-									   PVC_INCLUDE_PLACEHOLDERS);
-		foreach (lc2, exprvars)
-		{
-			if (!is_exprlist_member(lfirst(lc2), exprs))
-				break;
-		}
-		list_free(exprvars);
-		if (lc2)
-			continue; /* we hit a non-available Var */
-
-		/*
-		 * If requested, reject expressions that are not parallel-safe.  We
-		 * check this last because it's a rather expensive test.
-		 */
-		if (require_parallel_safe && !is_parallel_safe(root, (Node *) em->em_expr))
-			continue;
-
-		return em; /* found usable expression */
-	}
-
-	return NULL;
-}
-#endif
-
 /*
  * ts_make_sort --- basic routine to build a Sort plan node
  *

src/process_utility.c

@@ -3745,9 +3745,7 @@ process_altertable_end_subcmd(Hypertable *ht, Node *parsetree, ObjectAddress *ob
 		case AT_SetLogged:
 		case AT_SetStorage:
 		case AT_ColumnDefault:
-#if PG_VERSION_NUM >= 120005
 		case AT_CookedColumnDefault:
-#endif
 		case AT_SetNotNull:
 		case AT_CheckNotNull:
 		case AT_DropNotNull: