Remove artificial restrictions on which node types have out/read funcs.

The initial version of gen_node_support.pl manually excluded most
utility statement node types from having out/read support, and
also some raw-parse-tree-only node types.  That was mostly to keep
the output comparable to the old hand-maintained code.  We'd like
to have out/read support for utility statements, for debugging
purposes and so that they can be included in new-style SQL functions;
so it's time to lift that restriction.

Most if not all of the previously-excluded raw-parse-tree-only node
types can appear in expression subtrees of utility statements, so
they have to be handled too.

We don't quite have full read support yet; certain custom_read_write
node types need to have their handwritten read functions implemented
before that will work.

Doing this allows us to drop the previous hack in _outQuery to not
dump the utilityStmt field in most cases, which means we no longer
need manually-maintained out/read functions for Query, so get rid
of those in favor of auto-generating them.

Fix a couple of omissions in gen_node_support.pl that are exposed
through having to handle more node types.

catversion bump forced because somebody was sloppy about the field
order in the manually-maintained Query out/read functions.
(Committers should note that almost all changes in parsenodes.h
are now grounds for a catversion bump.)

1 files changed, 0 insertions, 50 deletions

diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c
index 1421686938f..a2391280bea 100644
--- a/src/backend/nodes/readfuncs.c
+++ b/src/backend/nodes/readfuncs.c
@@ -240,56 +240,6 @@ readBitmapset(void)
  * special_read_write attribute
  */
 
-static Query *
-_readQuery(void)
-{
-	READ_LOCALS(Query);
-
-	READ_ENUM_FIELD(commandType, CmdType);
-	READ_ENUM_FIELD(querySource, QuerySource);
-	local_node->queryId = UINT64CONST(0);	/* not saved in output format */
-	READ_BOOL_FIELD(canSetTag);
-	READ_NODE_FIELD(utilityStmt);
-	READ_INT_FIELD(resultRelation);
-	READ_BOOL_FIELD(hasAggs);
-	READ_BOOL_FIELD(hasWindowFuncs);
-	READ_BOOL_FIELD(hasTargetSRFs);
-	READ_BOOL_FIELD(hasSubLinks);
-	READ_BOOL_FIELD(hasDistinctOn);
-	READ_BOOL_FIELD(hasRecursive);
-	READ_BOOL_FIELD(hasModifyingCTE);
-	READ_BOOL_FIELD(hasForUpdate);
-	READ_BOOL_FIELD(hasRowSecurity);
-	READ_BOOL_FIELD(isReturn);
-	READ_NODE_FIELD(cteList);
-	READ_NODE_FIELD(rtable);
-	READ_NODE_FIELD(jointree);
-	READ_NODE_FIELD(targetList);
-	READ_ENUM_FIELD(override, OverridingKind);
-	READ_NODE_FIELD(onConflict);
-	READ_NODE_FIELD(returningList);
-	READ_NODE_FIELD(groupClause);
-	READ_BOOL_FIELD(groupDistinct);
-	READ_NODE_FIELD(groupingSets);
-	READ_NODE_FIELD(havingQual);
-	READ_NODE_FIELD(windowClause);
-	READ_NODE_FIELD(distinctClause);
-	READ_NODE_FIELD(sortClause);
-	READ_NODE_FIELD(limitOffset);
-	READ_NODE_FIELD(limitCount);
-	READ_ENUM_FIELD(limitOption, LimitOption);
-	READ_NODE_FIELD(rowMarks);
-	READ_NODE_FIELD(setOperations);
-	READ_NODE_FIELD(constraintDeps);
-	READ_NODE_FIELD(withCheckOptions);
-	READ_NODE_FIELD(mergeActionList);
-	READ_BOOL_FIELD(mergeUseOuterJoin);
-	READ_LOCATION_FIELD(stmt_location);
-	READ_INT_FIELD(stmt_len);
-
-	READ_DONE();
-}
-
 static Const *
 _readConst(void)
 {