diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml index a404a9c614..670026d591 100644 --- a/doc/src/sgml/ddl.sgml +++ b/doc/src/sgml/ddl.sgml @@ -1,4 +1,4 @@ - + Data Definition @@ -2078,6 +2078,7 @@ VALUES ('New York', NULL, NULL, 'NY'); parent. Similarly an inheritance link can be removed from a child using the ALTER TABLE using the NO INHERIT subform. + One convenient way to create a compatible table to be a new child is using @@ -2086,7 +2087,8 @@ VALUES ('New York', NULL, NULL, 'NY'); caveat below regarding constraints). Alternatively a compatible table can be created by first creating a new child using CREATE TABLE then removing the inheritance link with ALTER - TABLE. + TABLE. + A parent table cannot be dropped while any @@ -2234,7 +2236,7 @@ VALUES ('New York', NULL, NULL, 'NY'); be accessed for a query. Whereas the alternative, adding those columns to every index, increases space usage which can erase any performance gain. - + When most of the heavily accessed area of the table is in a single