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authorTom Lane <tgl@sss.pgh.pa.us>2020-01-31 17:03:55 -0500
committerTom Lane <tgl@sss.pgh.pa.us>2020-01-31 17:03:55 -0500
commit74b35eb468dcf353e25afd4acfc7ee2b2022d6b6 (patch)
tree014046bfe6928daf4c7ccd06dc62f9f335ee5f6d /src/include/utils/lsyscache.h
parent2425f8f714a15fa0fa6fa2f656ad546cbb78e2d6 (diff)
Fix CheckAttributeType's handling of collations for ranges.
Commit fc7695891 changed CheckAttributeType to recurse into ranges, but made it pass down the wrong collation (always InvalidOid, since ranges as such have no collation). This would result in guaranteed failure when considering a range type whose subtype is collatable. Embarrassingly, we lack any regression tests that would expose such a problem (but fortunately, somebody noticed before we shipped this bug in any release). Fix it to pass down the range's subtype collation property instead, and add some regression test cases to exercise collatable-subtype ranges a bit more. Back-patch to all supported branches, as the previous patch was. Report and patch by Julien Rouhaud, test cases tweaked by me Discussion: https://postgr.es/m/CAOBaU_aBWqNweiGUFX0guzBKkcfJ8mnnyyGC_KBQmO12Mj5f_A@mail.gmail.com
Diffstat (limited to 'src/include/utils/lsyscache.h')
-rw-r--r--src/include/utils/lsyscache.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h
index a216d6793df..370f62a1334 100644
--- a/src/include/utils/lsyscache.h
+++ b/src/include/utils/lsyscache.h
@@ -179,6 +179,7 @@ extern void free_attstatsslot(AttStatsSlot *sslot);
extern char *get_namespace_name(Oid nspid);
extern char *get_namespace_name_or_temp(Oid nspid);
extern Oid get_range_subtype(Oid rangeOid);
+extern Oid get_range_collation(Oid rangeOid);
extern Oid get_index_column_opclass(Oid index_oid, int attno);
#define type_is_array(typid) (get_element_type(typid) != InvalidOid)