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Remove planner's private fields from Query struct, and put them into

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a new PlannerInfo struct, which is passed around instead of the bare
Query in all the planning code.  This commit is essentially just a
code-beautification exercise, but it does open the door to making
larger changes to the planner data structures without having to muck
with the widely-known Query struct.
This commit is contained in:
Tom Lane
2005-06-05 22:32:58 +00:00
parent 22dbd54047
commit 9ab4d98168
51 changed files with 852 additions and 707 deletions
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18
src/include/nodes/parsenodes.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.280 2005/06/05 00:38:10 tgl Exp $
* $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.281 2005/06/05 22:32:57 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -62,8 +62,9 @@ typedef uint32 AclMode; /* a bitmask of privilege bits */
* Query -
* all statements are turned into a Query tree (via transformStmt)
* for further processing by the optimizer
* utility statements (i.e. non-optimizable statements)
* have the *utilityStmt field set.
*
* utility statements (i.e. non-optimizable statements) have the
* utilityStmt field set, and the Query itself is mostly dummy.
*/
typedef struct Query
{
@@ -121,17 +122,6 @@ typedef struct Query
* ought to go in some sort of TopPlan plan node, not in the Query.
*/
List *resultRelations; /* integer list of RT indexes, or NIL */
/* internal to planner */
List *base_rel_list; /* list of base-relation RelOptInfos */
List *other_rel_list; /* list of other 1-relation RelOptInfos */
List *join_rel_list; /* list of join-relation RelOptInfos */
List *equi_key_list; /* list of lists of equijoined
* PathKeyItems */
List *in_info_list; /* list of InClauseInfos */
List *query_pathkeys; /* desired pathkeys for query_planner() */
bool hasJoinRTEs; /* true if any RTEs are RTE_JOIN kind */
bool hasHavingQual; /* true if havingQual was non-null */
} Query;