pgsql: Add SQL/JSON query functions - Mailing list pgsql-committers
| From | Amit Langote |
|---|---|
| Subject | pgsql: Add SQL/JSON query functions |
| Date | |
| Msg-id | E1rnDSa-004uGu-Kh@gemulon.postgresql.org Whole thread Raw |
| List | pgsql-committers |
Add SQL/JSON query functions This introduces the following SQL/JSON functions for querying JSON data using jsonpath expressions: JSON_EXISTS(), which can be used to apply a jsonpath expression to a JSON value to check if it yields any values. JSON_QUERY(), which can be used to to apply a jsonpath expression to a JSON value to get a JSON object, an array, or a string. There are various options to control whether multi-value result uses array wrappers and whether the singleton scalar strings are quoted or not. JSON_VALUE(), which can be used to apply a jsonpath expression to a JSON value to return a single scalar value, producing an error if it multiple values are matched. Both JSON_VALUE() and JSON_QUERY() functions have options for handling EMPTY and ERROR conditions, which can be used to specify the behavior when no values are matched and when an error occurs during jsonpath evaluation, respectively. Author: Nikita Glukhov <n.gluhov@postgrespro.ru> Author: Teodor Sigaev <teodor@sigaev.ru> Author: Oleg Bartunov <obartunov@gmail.com> Author: Alexander Korotkov <aekorotkov@gmail.com> Author: Andrew Dunstan <andrew@dunslane.net> Author: Amit Langote <amitlangote09@gmail.com> Author: Peter Eisentraut <peter@eisentraut.org> Author: Jian He <jian.universality@gmail.com> Reviewers have included (in no particular order): Andres Freund, Alexander Korotkov, Pavel Stehule, Andrew Alsup, Erik Rijkers, Zihong Yu, Himanshu Upadhyaya, Daniel Gustafsson, Justin Pryzby, Álvaro Herrera, Jian He, Anton A. Melnikov, Nikita Malakhov, Peter Eisentraut, Tomas Vondra Discussion: https://postgr.es/m/cd0bb935-0158-78a7-08b5-904886deac4b@postgrespro.ru Discussion: https://postgr.es/m/20220616233130.rparivafipt6doj3@alap3.anarazel.de Discussion: https://postgr.es/m/abd9b83b-aa66-f230-3d6d-734817f0995d%40postgresql.org Discussion: https://postgr.es/m/CA+HiwqHROpf9e644D8BRqYvaAPmgBZVup-xKMDPk-nd4EpgzHw@mail.gmail.com Discussion: https://postgr.es/m/CA+HiwqE4XTdfb1nW=Ojoy_tQSRhYt-q_kb6i5d4xcKyrLC1Nbg@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/6185c9737cf48c9540782d88f12bd2912d6ca1cc Modified Files -------------- doc/src/sgml/func.sgml | 210 ++++ src/backend/catalog/sql_features.txt | 12 +- src/backend/executor/execExpr.c | 301 +++++ src/backend/executor/execExprInterp.c | 338 +++++- src/backend/jit/llvm/llvmjit_expr.c | 108 ++ src/backend/jit/llvm/llvmjit_types.c | 3 + src/backend/nodes/makefuncs.c | 16 + src/backend/nodes/nodeFuncs.c | 159 +++ src/backend/optimizer/path/costsize.c | 3 +- src/backend/optimizer/util/clauses.c | 20 + src/backend/parser/gram.y | 188 +++- src/backend/parser/parse_expr.c | 553 +++++++++- src/backend/parser/parse_target.c | 18 + src/backend/utils/adt/formatting.c | 44 + src/backend/utils/adt/jsonb.c | 31 + src/backend/utils/adt/jsonfuncs.c | 62 +- src/backend/utils/adt/jsonpath.c | 281 +++++ src/backend/utils/adt/jsonpath_exec.c | 322 ++++++ src/backend/utils/adt/ruleutils.c | 138 +++ src/include/executor/execExpr.h | 22 + src/include/nodes/execnodes.h | 73 ++ src/include/nodes/makefuncs.h | 2 + src/include/nodes/parsenodes.h | 42 + src/include/nodes/primnodes.h | 122 +++ src/include/parser/kwlist.h | 11 + src/include/utils/formatting.h | 1 + src/include/utils/jsonb.h | 1 + src/include/utils/jsonfuncs.h | 7 + src/include/utils/jsonpath.h | 24 + src/interfaces/ecpg/preproc/ecpg.trailer | 28 + src/test/regress/expected/sqljson_queryfuncs.out | 1269 ++++++++++++++++++++++ src/test/regress/parallel_schedule | 2 +- src/test/regress/sql/sqljson_queryfuncs.sql | 428 ++++++++ src/tools/pgindent/typedefs.list | 12 + 34 files changed, 4815 insertions(+), 36 deletions(-)
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