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Make toast-table creation and deletion work somewhat reliably.

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Don't go through pg_exec_query_dest(), but directly to the execution
routines.  Also, extend parameter lists so that there's no need to
change the global setting of allowSystemTableMods, a hack that was
certain to cause trouble in the event of any error.
This commit is contained in:
Tom Lane
2000-07-04 06:11:54 +00:00
parent 9cf327790d
commit cdeca5f590
18 changed files with 144 additions and 98 deletions
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16
src/backend/tcop/postgres.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.165 2000/07/03 20:48:37 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.166 2000/07/04 06:11:43 tgl Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@ -538,7 +538,7 @@ pg_plan_query(Query *querytree)
*
* parse_context references a context suitable for holding the
* parse/rewrite trees (typically this will be QueryContext).
* This context must be longer-lived than the CurrentMemoryContext!
* This context *must* be longer-lived than the CurrentMemoryContext!
* In fact, if the query string might contain BEGIN/COMMIT commands,
* parse_context had better outlive TopTransactionContext!
*
@ -559,6 +559,16 @@ pg_exec_query_dest(char *query_string, /* string to execute */
List *querytree_list,
*querytree_item;
/*
* If you called this routine with parse_context = CurrentMemoryContext,
* you blew it. They *must* be different, else the context reset
* at the bottom of the loop will destroy the querytree list.
* (We really ought to check that parse_context isn't a child of
* CurrentMemoryContext either, but that would take more cycles than
* it's likely to be worth.)
*/
Assert(parse_context != CurrentMemoryContext);
/*
* Switch to appropriate context for constructing parsetrees.
*/
@ -1404,7 +1414,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface ");
puts("$Revision: 1.165 $ $Date: 2000/07/03 20:48:37 $\n");
puts("$Revision: 1.166 $ $Date: 2000/07/04 06:11:43 $\n");
}
/*