diff --git a/gpdb-doc/dita/ref_guide/config_params/guc-list.xml b/gpdb-doc/dita/ref_guide/config_params/guc-list.xml
index b7058f2a6edb04708b21af0e6381acebdb72e8f7..8d8f4915671f5029ab702966ba2b46ef5ce27af9 100644
--- a/gpdb-doc/dita/ref_guide/config_params/guc-list.xml
+++ b/gpdb-doc/dita/ref_guide/config_params/guc-list.xml
@@ -445,9 +445,6 @@
-
-
-
@@ -1390,7 +1387,7 @@
Boolean
- off
+ on
mastersession
reload
@@ -1766,6 +1763,10 @@
lower value makes it more likely sequential scans will be used. This parameter has no effect
on the size of shared memory allocated by a Greenplum server instance, nor does it reserve
kernel disk cache; it is used only for estimation purposes.
+ Set this parameter to a number of 32K blocks (for example, 512 for 16MB),
+ or specify the size of the effective cache (for example, '32MB' for 1024
+ blocks). The gpconfig utility and SHOW command display the
+ effective cache size value in units such as 'MB' or 'kB'.
@@ -1781,7 +1782,7 @@
floating point
- 512MB
+ 512 (16GB)
mastersession
reload
@@ -5573,33 +5574,6 @@