From d74b3f477472ae38218c9a7bc34f814b66ad8187 Mon Sep 17 00:00:00 2001 From: robocop Date: Fri, 15 Jan 2010 05:13:43 +0000 Subject: [PATCH] Misc. --- doc/sql.extensions/README.identity_columns.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/sql.extensions/README.identity_columns.txt b/doc/sql.extensions/README.identity_columns.txt index 66328eb3e1..d410c62c60 100644 --- a/doc/sql.extensions/README.identity_columns.txt +++ b/doc/sql.extensions/README.identity_columns.txt @@ -21,10 +21,10 @@ Syntax rules: Notes: - You cannot alter a identity column to normal column and vice versa. - Identity columns are implicitly NOT NULL. - - Identity columns doesn't enforce uniqueness automatically. Use UNIQUE or PRIMARY key for that. + - Identity columns don't enforce uniqueness automatically. Use UNIQUE or PRIMARY key for that. Implementation: - Two columns has been inserted in RDB$RELATION_FIELDS: RDB$GENERATOR_NAME and RDB$IDENTITY_TYPE. + Two columns have been inserted in RDB$RELATION_FIELDS: RDB$GENERATOR_NAME and RDB$IDENTITY_TYPE. RDB$GENERATOR_NAME stores the automatically created generator for the column. In RDB$GENERATORS, the value of RDB$SYSTEM_FLAG of that generator will be 6. RDB$IDENTITY_TYPE will currently always store the value 0 (by default) for identity columns and NULL for non-identity columns.