pgsql: Fix volatile vs. pointer confusion

Fix volatile vs. pointer confusion

Variables used after a longjmp() need to be declared volatile. In
case of a pointer, it's the pointer itself that needs to be declared
volatile, not the pointed-to value. So we need

PyObject *volatile items;

instead of

volatile PyObject *items; /* wrong */

Discussion: /messages/by-id/f747368d-9e1a-c46a-ac76-3c27da32e8e4@2ndquadrant.com

Branch
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REL9_6_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/626c8ed2ef6dbca7df7d445875d133638b360dd1

Modified Files
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contrib/hstore_plpython/hstore_plpython.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)