diff options
| -rw-r--r-- | doc/src/sgml/ref/alter_table.sgml | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml index c888b57eb43..ef9286c603e 100644 --- a/doc/src/sgml/ref/alter_table.sgml +++ b/doc/src/sgml/ref/alter_table.sgml @@ -225,9 +225,10 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM provided none of the records in the table contain a <literal>NULL</literal> value for the column. Ordinarily this is checked during the <literal>ALTER TABLE</literal> by scanning the - entire table; however, if a valid <literal>CHECK</literal> constraint is - found which proves no <literal>NULL</literal> can exist, then the - table scan is skipped. + entire table; + however, if a valid <literal>CHECK</literal> constraint exists + (and is not dropped in the same command) which proves no + <literal>NULL</literal> can exist, then the table scan is skipped. </para> <para> |