Fix typo in SP-GiST error message

Error message didn't match the actual check.  Fix that.  Compression of leaf
SP-GiST values was introduced in 11.  So, backpatch.

Discussion: https://postgr.es/m/20180810.100742.15469435.horiguchi.kyotaro%40lab.ntt.co.jp
Author: Kyotaro Horiguchi
Backpatch-through: 11

diff --git a/src/backend/access/spgist/spgutils.c b/src/backend/access/spgist/spgutils.c
index 4a9b5da268d5941165ac3983cddcd6dd271f09d3..6d59b316ae3c64e590ebc1262d3532f2c5baf51c 100644 (file)
--- a/src/backend/access/spgist/spgutils.c
+++ b/src/backend/access/spgist/spgutils.c
@@ -133,7 +133,7 @@ spgGetCache(Relation index)
            if (!OidIsValid(index_getprocid(index, 1, SPGIST_COMPRESS_PROC)))
                ereport(ERROR,
                        (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
-                        errmsg("compress method must not defined when leaf type is different from input type")));
+                        errmsg("compress method must be defined when leaf type is different from input type")));
 
            fillTypeDesc(&cache->attLeafType, cache->config.leafType);
        }