Speed up tail processing when hashing aligned C strings
After encountering the NUL terminator, the word-at-a-time loop exits
and we must hash the remaining bytes. Previously we calculated the
terminator's position and re-loaded the remaining bytes from the input
string. We already have all the
Custom reloptions for table AM
Let table AM define custom reloptions for its tables. This allows to
specify AM-specific parameters by WITH clause when creating a table.
The code may use some parts from prior work by Hao Wu.
Discussion:
Generalize relation analyze in table AM interface
Currently, there is just one algorithm for sampling tuples from a table written
in acquire_sample_rows(). Custom table AM can just redefine the way to get the
next block/tuple by implementing scan_analyze_next_block() and
Let table AM insertion methods control index insertion
Previously, the executor did index insert unconditionally after calling
table AM interface methods tuple_insert() and multi_insert(). This commit
introduces the new parameter insert_indexes for these two methods. Setting
'*insert_indexes'
Add pg_basetype() function to extract a domain's base type.
This SQL-callable function behaves much like our internal utility
function getBaseType(), except it returns NULL rather than failing for
an invalid type OID. (That behavior is modeled on our experience with
other catalog-inquiry
Stabilize postgres_fdw test
The test fails when RESET statement_timeout takes longer than 10ms.
Avoid the problem by using SET LOCAL instead.
Overall, this test is not ideal: 10ms could be shorter than the time to
have sent the query to the "remote" server, so it's possible that on
some machines
doc: Improve "Partition Maintenance" section
This adds some reference links and clarifies the wording a bit.
Author: Robert Treat
Reviewed-by: Ashutosh Bapat
Discussion:
https://postgr.es/m/CABV9wwNGn-pweak6_pvL5PJ1mivDNPKfg0Tck_1oTUETv5Y=d...@mail.gmail.com
Branch
--
master
Details
Add support for MERGE ... WHEN NOT MATCHED BY SOURCE.
This allows MERGE commands to include WHEN NOT MATCHED BY SOURCE
actions, which operate on rows that exist in the target relation, but
not in the data source. These actions can execute UPDATE, DELETE, or
DO NOTHING sub-commands.
This is in
