tableam: Add and use table_fetch_row_version(). This is essentially the tableam version of heapam_fetch(), i.e. fetching a tuple identified by a tid, performing visibility checks.
Note that this different from table_index_fetch_tuple(), which is for index lookups. It therefore has to handle a tid pointing to an earlier version of a tuple if the AM uses an optimization like heap's HOT. Add comments to that end. This commit removes the stats_relation argument from heap_fetch, as it's been unused for a long time. Author: Andres Freund Reviewed-By: Haribabu Kommi Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/9a8ee1dc650be623c32b1df103254847be974d01 Modified Files -------------- src/backend/access/heap/heapam.c | 9 +---- src/backend/access/heap/heapam_handler.c | 27 ++++++++++++- src/backend/access/table/tableamapi.c | 1 + src/backend/commands/trigger.c | 69 ++++++-------------------------- src/backend/executor/execMain.c | 13 ++---- src/backend/executor/nodeModifyTable.c | 22 ++-------- src/backend/executor/nodeTidscan.c | 16 ++------ src/include/access/heapam.h | 2 +- src/include/access/tableam.h | 43 ++++++++++++++++++-- 9 files changed, 91 insertions(+), 111 deletions(-)
