pgsql-server/src backend/commands/explain.c ba ...

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@postgresql.org    02/12/05 10:50:39

Modified files:
    src/backend/commands: explain.c portalcmds.c prepare.c
    src/backend/executor: README execAmi.c execMain.c execProcnode.c
                          execQual.c execScan.c execTuples.c
                          execUtils.c functions.c nodeAgg.c
                          nodeAppend.c nodeFunctionscan.c
                          nodeGroup.c nodeHash.c nodeHashjoin.c
                          nodeIndexscan.c nodeLimit.c nodeMaterial.c
                          nodeMergejoin.c nodeNestloop.c
                          nodeResult.c nodeSeqscan.c nodeSetOp.c
                          nodeSort.c nodeSubplan.c
                          nodeSubqueryscan.c nodeTidscan.c
                          nodeUnique.c spi.c
    src/backend/nodes: copyfuncs.c equalfuncs.c outfuncs.c
    src/backend/optimizer/plan: createplan.c setrefs.c subselect.c
    src/backend/optimizer/util: pathnode.c
    src/backend/tcop: pquery.c
    src/backend/utils/mmgr: portalmem.c
    src/include/executor: execdesc.h executor.h nodeAgg.h
                          nodeAppend.h nodeFunctionscan.h
                          nodeGroup.h nodeHash.h nodeHashjoin.h
                          nodeIndexscan.h nodeLimit.h nodeMaterial.h
                          nodeMergejoin.h nodeNestloop.h
                          nodeResult.h nodeSeqscan.h nodeSetOp.h
                          nodeSort.h nodeSubplan.h
                          nodeSubqueryscan.h nodeTidscan.h
                          nodeUnique.h
    src/include/nodes: execnodes.h nodes.h params.h plannodes.h
                       print.h relation.h
    src/include/tcop: pquery.h
    src/include/utils: portal.h
    src/pl/plpgsql/src: pl_exec.c

Log message:
    Phase 1 of read-only-plans project: cause executor state nodes to point
    to plan nodes, not vice-versa.  All executor state nodes now inherit from
    struct PlanState.  Copying of plan trees has been simplified by not
    storing a list of SubPlans in Plan nodes (eliminating duplicate links).
    The executor still needs such a list, but it can build it during
    ExecutorStart since it has to scan the plan tree anyway.
    No initdb forced since no stored-on-disk structures changed, but you
    will need a full recompile because of node-numbering changes.