Thread: pgsql: Add string_to_table() function.
Add string_to_table() function. This splits a string at occurrences of a delimiter. It is exactly like string_to_array() except for producing a set of values instead of an array of values. Thus, the relationship of these two functions is the same as between regexp_split_to_table() and regexp_split_to_array(). Although the same results could be had from unnest(string_to_array()), this is somewhat faster than that, and anyway it seems reasonable to have it for symmetry with the regexp functions. Pavel Stehule, reviewed by Peter Smith Discussion: https://postgr.es/m/CAFj8pRD8HOpjq2TqeTBhSo_QkzjLOhXzGCpKJ4nCs7Y9SQkuPw@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/66f163068030b5c5fe792a0daee27822dac43791 Modified Files -------------- doc/src/sgml/func.sgml | 90 ++++++++++----- src/backend/utils/adt/varlena.c | 214 +++++++++++++++++++++++++---------- src/include/catalog/catversion.h | 2 +- src/include/catalog/pg_proc.dat | 18 ++- src/test/regress/expected/arrays.out | 108 ++++++++++++++++++ src/test/regress/sql/arrays.sql | 15 +++ 6 files changed, 354 insertions(+), 93 deletions(-)