> ---
>  doc/src/sgml/ddl.sgml                 |  23 +++
>  doc/src/sgml/indices.sgml             |  11 +-
>  doc/src/sgml/mvcc.sgml                |  43 ++++--
>  doc/src/sgml/plpgsql.sgml             |  20 ++-
>  doc/src/sgml/postgres-fdw.sgml        |   8 ++
>  doc/src/sgml/ref/create_index.sgml    |   7 +-
>  doc/src/sgml/ref/create_rule.sgml     |   6 +-
>  doc/src/sgml/ref/create_table.sgml    |   5 +-
>  doc/src/sgml/ref/create_trigger.sgml  |   5 +-
>  doc/src/sgml/ref/create_view.sgml     |  36 ++++-
>  doc/src/sgml/ref/insert.sgml          | 258 
> ++++++++++++++++++++++++++++++++--
>  doc/src/sgml/ref/set_constraints.sgml |   6 +-
>  doc/src/sgml/trigger.sgml             |  46 ++++--
>  13 files changed, 426 insertions(+), 48 deletions(-)
>
> #1 internal documentation stats:
>
>  doc/src/sgml/indexam.sgml        | 133 
> ++++++++++++++++++++++++++++++++++++---
>  src/backend/access/nbtree/README |  90 +++++++++++++++++++++++++-
>  src/backend/executor/README      |  35 +++++++++++
>  3 files changed, 247 insertions(+), 11 deletions(-)
>
> #2 internal documentation stats:
>
> ---
>  src/backend/executor/README | 49 
> +++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 49 insertions(+)

Just to put that in context, here are the documentation changes from
the original LATERAL commit:

 doc/src/sgml/keywords.sgml                |   2 +-
 doc/src/sgml/queries.sgml                 |  83
+++++++++++++++++++++++++++++++++++++++++-
 doc/src/sgml/ref/select.sgml              | 102
+++++++++++++++++++++++++++++++++++++++++++++-------

Commit 0ef0b30 added data-modifying CTE docs (docs only). That looks like:

 doc/src/sgml/queries.sgml    | 177
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 doc/src/sgml/ref/select.sgml |  49 ++++++++++++++---
 2 files changed, 214 insertions(+), 12 deletions(-)

> Have I not provided a total of 4 isolation tests illustrating
> interesting concurrency/visibility interactions? That's a lot of
> isolation tests. Here is the tests commit stat:
>
>  31 files changed, 1159 insertions(+), 8 deletions(-)

And to put the tests in context, here are the stats from the original
Hot Standby commit:

 src/test/regress/expected/hs_standby_allowed.out    |  215
++++++++++++++++++++++++++
 src/test/regress/expected/hs_standby_check.out      |   20 +++
 src/test/regress/expected/hs_standby_disallowed.out |  137 +++++++++++++++++
 src/test/regress/expected/hs_standby_functions.out  |   40 +++++
 src/test/regress/pg_regress.c                       |   33 ++--
 src/test/regress/sql/hs_primary_extremes.sql        |   74 +++++++++
 src/test/regress/sql/hs_primary_setup.sql           |   25 +++
 src/test/regress/sql/hs_standby_allowed.sql         |  121 +++++++++++++++
 src/test/regress/sql/hs_standby_check.sql           |   16 ++
 src/test/regress/sql/hs_standby_disallowed.sql      |  105 +++++++++++++
 src/test/regress/sql/hs_standby_functions.sql       |   24 +++
 src/test/regress/standby_schedule                   |   21 +++

So (at least as measured by raw lines of tests), this feature is
better tested than the original Hot Standby commit, and by a wide
margin. Tests also serve as an explanatory tool for the feature (in
particular, isolation tests can be used in this way).
-- 
Peter Geoghegan


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