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Check calling context for connectby_text(), per Joe Conway.

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This commit is contained in:
Tom Lane 2003-05-16 06:07:58 +00:00
parent 3ffaf20461
commit ab90b49f6b
1 changed files with 5 additions and 0 deletions
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5
contrib/tablefunc/tablefunc.c
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@ -646,6 +646,11 @@ connectby_text(PG_FUNCTION_ARGS)
MemoryContext per_query_ctx;
MemoryContext oldcontext;
/* check to see if caller supports us returning a tuplestore */
if (!rsinfo || !(rsinfo->allowedModes & SFRM_Materialize))
elog(ERROR, "connectby: materialize mode required, but it is not "
"allowed in this context");
if (fcinfo->nargs == 6)
{
branch_delim = GET_STR(PG_GETARG_TEXT_P(5));