pgsql: SQL/JSON query functions
От | Andrew Dunstan |
---|---|
Тема | pgsql: SQL/JSON query functions |
Дата | |
Msg-id | E1nZIuG-001xDg-KJ@gemulon.postgresql.org обсуждение исходный текст |
Ответы |
Re: pgsql: SQL/JSON query functions
(Michael Paquier <michael@paquier.xyz>)
|
Список | pgsql-committers |
SQL/JSON query functions This introduces the SQL/JSON functions for querying JSON data using jsonpath expressions. The functions are: JSON_EXISTS() JSON_QUERY() JSON_VALUE() All of these functions only operate on jsonb. The workaround for now is to cast the argument to jsonb. JSON_EXISTS() tests if the jsonpath expression applied to the jsonb value yields any values. JSON_VALUE() must return a single value, and an error occurs if it tries to return multiple values. JSON_QUERY() must return a json object or array, and there are various WRAPPER options for handling scalar or multi-value results. Both these functions have options for handling EMPTY and ERROR conditions. Nikita Glukhov 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. Discussion: https://postgr.es/m/cd0bb935-0158-78a7-08b5-904886deac4b@postgrespro.ru Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/1a36bc9dba8eae90963a586d37b6457b32b2fed4 Modified Files -------------- src/backend/executor/execExpr.c | 206 ++++-- src/backend/executor/execExprInterp.c | 543 ++++++++++++++ src/backend/jit/llvm/llvmjit_expr.c | 6 + src/backend/jit/llvm/llvmjit_types.c | 1 + src/backend/nodes/copyfuncs.c | 150 ++++ src/backend/nodes/equalfuncs.c | 127 ++++ src/backend/nodes/makefuncs.c | 15 + src/backend/nodes/nodeFuncs.c | 186 ++++- src/backend/nodes/outfuncs.c | 70 ++ src/backend/nodes/readfuncs.c | 86 +++ src/backend/optimizer/path/costsize.c | 3 +- src/backend/optimizer/util/clauses.c | 32 + src/backend/parser/gram.y | 333 ++++++++- src/backend/parser/parse_collate.c | 4 + src/backend/parser/parse_expr.c | 490 ++++++++++++- src/backend/parser/parse_target.c | 15 + src/backend/utils/adt/formatting.c | 45 +- src/backend/utils/adt/jsonb.c | 62 ++ src/backend/utils/adt/jsonfuncs.c | 50 +- src/backend/utils/adt/jsonpath.c | 257 +++++++ src/backend/utils/adt/jsonpath_exec.c | 350 +++++++-- src/backend/utils/adt/ruleutils.c | 135 ++++ src/backend/utils/misc/queryjumble.c | 21 + src/include/executor/execExpr.h | 54 ++ src/include/executor/executor.h | 2 + src/include/nodes/makefuncs.h | 1 + src/include/nodes/nodes.h | 7 + src/include/nodes/parsenodes.h | 59 ++ src/include/nodes/primnodes.h | 109 +++ src/include/parser/kwlist.h | 11 + src/include/utils/formatting.h | 4 + src/include/utils/jsonb.h | 3 + src/include/utils/jsonfuncs.h | 4 + src/include/utils/jsonpath.h | 33 + src/test/regress/expected/json_sqljson.out | 15 + src/test/regress/expected/jsonb_sqljson.out | 1018 +++++++++++++++++++++++++++ src/test/regress/parallel_schedule | 2 +- src/test/regress/sql/json_sqljson.sql | 11 + src/test/regress/sql/jsonb_sqljson.sql | 317 +++++++++ 39 files changed, 4716 insertions(+), 121 deletions(-)
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