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copyObject() and equal() now know about all parse-time node types,

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including utility statements.  Still can't copy or compare executor
state, but at present that doesn't seem to be necessary.  This makes
it possible to execute most (all?) utility statements in plpgsql.
Had to change parsetree representation of CreateTrigStmt so that it
contained only legal Nodes, and not bare string constants.
This commit is contained in:
Tom Lane
2000-08-11 23:45:35 +00:00
parent 66fd8f854f
commit 4951a8826d
6 changed files with 2363 additions and 126 deletions
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24
src/backend/tcop/postgres.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.170 2000/07/17 03:05:14 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.171 2000/08/11 23:45:35 tgl Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@ -417,21 +417,13 @@ pg_parse_and_rewrite(char *query_string, /* string to execute */
* trees. The present (bizarre) implementation of UNION/INTERSECT/EXCEPT
* doesn't run analysis of the second and later subqueries until rewrite,
* so we'd get false failures on these queries if we did it beforehand.
*
* Currently, copyObject doesn't know about most of the utility query
* types, so suppress the check until that can be fixed... it should
* be fixed, though.
*/
if (querytree_list &&
((Query *) lfirst(querytree_list))->commandType != CMD_UTILITY)
{
new_list = (List *) copyObject(querytree_list);
/* This checks both copyObject() and the equal() routines... */
if (! equal(new_list, querytree_list))
elog(NOTICE, "pg_parse_and_rewrite: copyObject failed on parse tree");
else
querytree_list = new_list;
}
new_list = (List *) copyObject(querytree_list);
/* This checks both copyObject() and the equal() routines... */
if (! equal(new_list, querytree_list))
elog(NOTICE, "pg_parse_and_rewrite: copyObject failed on parse tree");
else
querytree_list = new_list;
#endif
if (Debug_print_rewritten)
@ -1412,7 +1404,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface ");
puts("$Revision: 1.170 $ $Date: 2000/07/17 03:05:14 $\n");
puts("$Revision: 1.171 $ $Date: 2000/08/11 23:45:35 $\n");
}
/*