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Add missing CHECK_FOR_INTERRUPTS in lseg_inside_poly

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Apparently, there are bugs in this code that cause it to loop endlessly.
That bug still needs more research, but in the meantime it's clear that
the loop is missing a check for interrupts so that it can be cancelled
timely.

Backpatch to 9.1 -- this has been missing since 49475aab8d.
This commit is contained in:
Alvaro Herrera 2015-12-14 16:44:40 -03:00
parent c6eced09b2
commit 188675256e
1 changed files with 3 additions and 0 deletions
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3
src/backend/utils/adt/geo_ops.c
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@ -20,6 +20,7 @@
#include <ctype.h>
#include "libpq/pqformat.h"
#include "miscadmin.h"
#include "utils/builtins.h"
#include "utils/geo_decls.h"
@ -3931,6 +3932,8 @@ lseg_inside_poly(Point *a, Point *b, POLYGON *poly, int start)
{
Point *interpt;
CHECK_FOR_INTERRUPTS();
s.p[1] = poly->p[i];
if (on_ps_internal(t.p, &s))