fix changelog messages

Change-Id: I5af8f59ec15820f83210f49aab3006b726484301

diff --git a/doc/build/changelog/unreleased_20/10877.rst b/doc/build/changelog/unreleased_20/10877.rst
index 8aaac983b45bf7e095b572c5b37d300b4fa7e3ab..90bf75f2493cb02d1352e5df919154a2ce9d4561 100644 (file)
--- a/doc/build/changelog/unreleased_20/10877.rst
+++ b/doc/build/changelog/unreleased_20/10877.rst
@@ -1,7 +1,10 @@
 .. change::
-    :tags: oracle
+    :tags: oracle, bug, performance
     :tickets: 10877
 
     Changed the default arraysize of the Oracle dialects so that the value set
     by the driver is used, that is 100 at the time of writing for both
-    cx_oracle and oracledb. Previously the value was set to 50 by default.
+    cx_oracle and oracledb. Previously the value was set to 50 by default. The
+    setting of 50 could cause significant performance regressions compared to
+    when using cx_oracle/oracledb alone to fetch many hundreds of rows over
+    slower networks.

diff --git a/doc/build/changelog/unreleased_20/uuid_imv_fixes.rst b/doc/build/changelog/unreleased_20/uuid_imv_fixes.rst
index 79aa132b21ed32e280aaadba3cd052d53f00fcd2..0744c61e35bc9f90a74913f989a899d4e9d67e24 100644 (file)
--- a/doc/build/changelog/unreleased_20/uuid_imv_fixes.rst
+++ b/doc/build/changelog/unreleased_20/uuid_imv_fixes.rst
@@ -13,8 +13,8 @@
     :tags: bug, postgresql
 
     Fixed an issue regarding the use of the :class:`.Uuid` datatype with the
-    :paramref:`.Uuid.as_uuid` parameter set to False, when using the pymssql
-    dialect. ORM-optimized INSERT statements (e.g. the "insertmanyvalues"
+    :paramref:`.Uuid.as_uuid` parameter set to False, when using PostgreSQL
+    dialects. ORM-optimized INSERT statements (e.g. the "insertmanyvalues"
     feature) would not correctly align primary key UUID values for bulk INSERT
     statements, resulting in errors.  Similar issues were fixed for the
     pymssql driver as well.