Fix typos, update README.

Peter Geoghegan

diff --git a/src/backend/lib/README b/src/backend/lib/README
index 2f16351849dff7b0e97d48c4c20ebec2647ea73c..5e5ba5e43725d3dcf4f735342d475ec10f2a3d89 100644 (file)
--- a/src/backend/lib/README
+++ b/src/backend/lib/README
@@ -3,6 +3,8 @@ in the backend:
 
 binaryheap.c - a binary heap
 
+hyperloglog.c - a streaming cardinality estimator
+
 pairingheap.c - a pairing heap
 
 rbtree.c - a red-black tree

diff --git a/src/backend/utils/adt/varlena.c b/src/backend/utils/adt/varlena.c
index c79b6413916ce1630250db6658f0d03c90c7ea20..cfa192193b47e657a9d9336d1ef10e96c71ddf70 100644 (file)
--- a/src/backend/utils/adt/varlena.c
+++ b/src/backend/utils/adt/varlena.c
@@ -2088,7 +2088,7 @@ bttext_abbrev_convert(Datum original, SortSupport ssup)
         *
         * First, Hash key proper, or a significant fraction of it.  Mix in length
         * in order to compensate for cases where differences are past
-        * CACHE_LINE_SIZE bytes, so as to limit the overhead of hashing.
+        * PG_CACHE_LINE_SIZE bytes, so as to limit the overhead of hashing.
         */
        hash = hash_any((unsigned char *) authoritative_data,
                                        Min(len, PG_CACHE_LINE_SIZE));

diff --git a/src/include/utils/sortsupport.h b/src/include/utils/sortsupport.h
index 62fedfaaad452d1d97db64cffc909457b19c84fb..44c596f507d9c55f2f2fe2efcb79426d3c06a1fa 100644 (file)
--- a/src/include/utils/sortsupport.h
+++ b/src/include/utils/sortsupport.h
@@ -165,8 +165,8 @@ typedef struct SortSupportData
         * may set it to NULL to indicate abbreviation should not be used (which is
         * something sortsupport routines need not concern themselves with).
         * However, sortsupport routines must not set it when it is immediately
-        * established that abbreviation should not proceed (for abbreviation
-        * calls, or platform-specific impediments to using abbreviation).
+        * established that abbreviation should not proceed (e.g., for !abbreviate
+        * calls, or due to platform-specific impediments to using abbreviation).
         */
        Datum                   (*abbrev_converter) (Datum original, SortSupport ssup);