Transaction chaining Add command variants COMMIT AND CHAIN and ROLLBACK AND CHAIN, which start new transactions with the same transaction characteristics as the just finished one, per SQL standard. Support for transaction chaining in PL/pgSQL is also added. This functionality is especially useful when running COMMIT in a loop in PL/pgSQL. Reviewed-by: Fabien COELHO <coelho@cri.ensmp.fr> Discussion: https://www.postgresql.org/message-id/flat/28536681-324b-10dc-ade8-ab46f7645a5a@2ndquadrant.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/280a408b48d5ee42969f981bceb9e9426c3a344c Modified Files -------------- doc/src/sgml/plpgsql.sgml | 14 ++ doc/src/sgml/ref/abort.sgml | 14 +- doc/src/sgml/ref/commit.sgml | 23 ++- doc/src/sgml/ref/end.sgml | 14 +- doc/src/sgml/ref/rollback.sgml | 23 ++- doc/src/sgml/spi.sgml | 29 +++- src/backend/access/transam/xact.c | 73 +++++++- src/backend/catalog/sql_features.txt | 2 +- src/backend/executor/spi.c | 50 +++++- src/backend/nodes/copyfuncs.c | 1 + src/backend/nodes/equalfuncs.c | 1 + src/backend/parser/gram.y | 19 +- src/backend/tcop/utility.c | 4 +- src/bin/psql/tab-complete.c | 8 +- src/include/access/xact.h | 6 +- src/include/executor/spi.h | 2 + src/include/nodes/parsenodes.h | 1 + .../plpgsql/src/expected/plpgsql_transaction.out | 28 +++ src/pl/plpgsql/src/pl_exec.c | 18 +- src/pl/plpgsql/src/pl_funcs.c | 10 +- src/pl/plpgsql/src/pl_gram.y | 18 +- src/pl/plpgsql/src/pl_unreserved_kwlist.h | 2 + src/pl/plpgsql/src/plpgsql.h | 2 + src/pl/plpgsql/src/sql/plpgsql_transaction.sql | 23 +++ src/test/regress/expected/transactions.out | 191 +++++++++++++++++++++ src/test/regress/sql/transactions.sql | 63 +++++++ 26 files changed, 601 insertions(+), 38 deletions(-)
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