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Expose more cursor-related functionality in SPI: specifically, allow

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access to the planner's cursor-related planning options, and provide new
FETCH/MOVE routines that allow access to the full power of those commands.
Small refactoring of planner(), pg_plan_query(), and pg_plan_queries()
APIs to make it convenient to pass the planning options down from SPI.

This is the core-code portion of Pavel Stehule's patch for scrollable
cursor support in plpgsql; I'll review and apply the plpgsql changes
separately.
This commit is contained in:
Tom Lane
2007-04-16 01:14:58 +00:00
parent fa92d21a48
commit 66888f7424
15 changed files with 435 additions and 71 deletions
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4
src/backend/executor/functions.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/functions.c,v 1.114 2007/04/02 18:49:29 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/functions.c,v 1.115 2007/04/16 01:14:56 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -115,7 +115,7 @@ init_execution_state(List *queryTree_list, bool readonly_func)
if (queryTree->commandType == CMD_UTILITY)
stmt = queryTree->utilityStmt;
else
stmt = (Node *) pg_plan_query(queryTree, NULL);
stmt = (Node *) pg_plan_query(queryTree, 0, NULL);
/* Precheck all commands for validity in a function */
if (IsA(stmt, TransactionStmt))