doc: Clarify INCLUDING COMMENTS behavior in CREATE TABLE LIKE. The documentation for the INCLUDING COMMENTS option of the LIKE clause in CREATE TABLE was inaccurate and incomplete. It stated that comments for copied columns, constraints, and indexes are copied, but regarding comments on constraints in reality only comments on CHECK and NOT NULL constraints are copied; comments on other constraints (such as primary keys) are not. In addition, comments on extended statistics are copied, but this was not documented.
The CREATE FOREIGN TABLE documentation had a similar omission: comments on extended statistics are also copied, but this was not mentioned. This commit updates the documentation to clarify the actual behavior. The CREATE TABLE reference now specifies that comments on copied columns, CHECK constraints, NOT NULL constraints, indexes, and extended statistics are copied. The CREATE FOREIGN TABLE reference now notes that comments on extended statistics are copied as well. Backpatch to all supported versions. Documentation updates related to CREATE FOREIGN TABLE LIKE and NOT NULL constraint comment copying are not applied to v17 and earlier, since those features were introduced in v18. Author: Fujii Masao <[email protected]> Reviewed-by: Matheus Alcantara <[email protected]> Discussion: https://postgr.es/m/cahgqgwhsosgcaydvhf8eycucfgpjbrwgfsj23cx5kbj1x6j...@mail.gmail.com Backpatch-through: 14 Branch ------ REL_16_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/fe99a0338953fdcba5ba1aaaa2330435fd44d709 Modified Files -------------- doc/src/sgml/ref/create_table.sgml | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
