mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-10 05:49:31 +02:00
When decoding the old version of an UPDATE or DELETE change, and if that tuple was bigger than MaxHeapTupleSize, we either Assert'ed out, or failed in more subtle ways in non-assert builds. Normally individual tuples aren't bigger than MaxHeapTupleSize, with big datums toasted. But that's not the case for the old version of a tuple for logical decoding; the replica identity is logged as one piece. With the default replica identity btree limits that to small tuples, but that's not the case for FULL. Change the tuple buffer infrastructure to separate allocate over-large tuples, instead of always going through the slab cache. This unfortunately requires changing the ReorderBufferTupleBuf definition, we need to store the allocated size someplace. To avoid requiring output plugins to recompile, don't store HeapTupleHeaderData directly after HeapTupleData, but point to it via t_data; that leaves rooms for the allocated size. As there's no reason for an output plugin to look at ReorderBufferTupleBuf->t_data.header, remove the field. It was just a minor convenience having it directly accessible. Reported-By: Adam Dratwiński Discussion: CAKg6ypLd7773AOX4DiOGRwQk1TVOQKhNwjYiVjJnpq8Wo+i62Q@mail.gmail.com |
||
---|---|---|
.. | ||
adminpack | ||
auth_delay | ||
auto_explain | ||
btree_gin | ||
btree_gist | ||
chkpass | ||
citext | ||
cube | ||
dblink | ||
dict_int | ||
dict_xsyn | ||
earthdistance | ||
file_fdw | ||
fuzzystrmatch | ||
hstore | ||
hstore_plperl | ||
hstore_plpython | ||
intagg | ||
intarray | ||
isn | ||
lo | ||
ltree | ||
ltree_plpython | ||
oid2name | ||
pageinspect | ||
passwordcheck | ||
pg_buffercache | ||
pg_freespacemap | ||
pg_prewarm | ||
pg_standby | ||
pg_stat_statements | ||
pg_trgm | ||
pgcrypto | ||
pgrowlocks | ||
pgstattuple | ||
postgres_fdw | ||
seg | ||
sepgsql | ||
spi | ||
sslinfo | ||
start-scripts | ||
tablefunc | ||
tcn | ||
test_decoding | ||
tsearch2 | ||
tsm_system_rows | ||
tsm_system_time | ||
unaccent | ||
uuid-ossp | ||
vacuumlo | ||
xml2 | ||
contrib-global.mk | ||
Makefile | ||
README |
The PostgreSQL contrib tree --------------------------- This subtree contains porting tools, analysis utilities, and plug-in features that are not part of the core PostgreSQL system, mainly because they address a limited audience or are too experimental to be part of the main source tree. This does not preclude their usefulness. User documentation for each module appears in the main SGML documentation. When building from the source distribution, these modules are not built automatically, unless you build the "world" target. You can also build and install them all by running "make all" and "make install" in this directory; or to build and install just one selected module, do the same in that module's subdirectory. Some directories supply new user-defined functions, operators, or types. To make use of one of these modules, after you have installed the code you need to register the new SQL objects in the database system by executing a CREATE EXTENSION command. In a fresh database, you can simply do CREATE EXTENSION module_name; See the PostgreSQL documentation for more information about this procedure.