diff options
| -rw-r--r-- | docs/build/batch.rst | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/docs/build/batch.rst b/docs/build/batch.rst index c48fe64..04a32c4 100644 --- a/docs/build/batch.rst +++ b/docs/build/batch.rst @@ -219,11 +219,13 @@ users. Working in Offline Mode ----------------------- -Another big limitation of "move and copy" is that in order to make a copy -of a table, the structure of that table must be known. -:meth:`.Operations.batch_alter_table` by default will use reflection to -get this information, which means that "online" mode is required; the -``--sql`` flag **cannot** be used without extra steps. +In the preceding sections, we've seen how much of an emphasis the +"move and copy" process has on using reflection in order to know the +structure of the table that is to be copied. This means that in the typical +case, "online" mode, where a live database connection is present so that +:meth:`.Operations.batch_alter_table` can reflect the table from the +database, is required; the ``--sql`` flag **cannot** be used without extra +steps. To support offline mode, the system must work without table reflection present, which means the full table as it intends to be created must be |