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author | vvvv <vvvv@yandex-team.com> | 2024-11-07 12:29:36 +0300 |
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committer | vvvv <vvvv@yandex-team.com> | 2024-11-07 13:49:47 +0300 |
commit | d4c258e9431675bab6745c8638df6e3dfd4dca6b (patch) | |
tree | b5efcfa11351152a4c872fccaea35749141c0b11 /yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/jsonfuncs.h | |
parent | 13a4f274caef5cfdaf0263b24e4d6bdd5521472b (diff) | |
download | ydb-d4c258e9431675bab6745c8638df6e3dfd4dca6b.tar.gz |
Moved other yql/essentials libs YQL-19206
init
commit_hash:7d4c435602078407bbf20dd3c32f9c90d2bbcbc0
Diffstat (limited to 'yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/jsonfuncs.h')
-rw-r--r-- | yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/jsonfuncs.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/jsonfuncs.h b/yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/jsonfuncs.h new file mode 100644 index 00000000000..a85203d4a4b --- /dev/null +++ b/yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/jsonfuncs.h @@ -0,0 +1,66 @@ +/*------------------------------------------------------------------------- + * + * jsonfuncs.h + * Functions to process JSON data types. + * + * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/utils/jsonfuncs.h + * + *------------------------------------------------------------------------- + */ + +#ifndef JSONFUNCS_H +#define JSONFUNCS_H + +#include "common/jsonapi.h" +#include "utils/jsonb.h" + +/* + * Flag types for iterate_json(b)_values to specify what elements from a + * json(b) document we want to iterate. + */ +typedef enum JsonToIndex +{ + jtiKey = 0x01, + jtiString = 0x02, + jtiNumeric = 0x04, + jtiBool = 0x08, + jtiAll = jtiKey | jtiString | jtiNumeric | jtiBool +} JsonToIndex; + +/* an action that will be applied to each value in iterate_json(b)_values functions */ +typedef void (*JsonIterateStringValuesAction) (void *state, char *elem_value, int elem_len); + +/* an action that will be applied to each value in transform_json(b)_values functions */ +typedef text *(*JsonTransformStringValuesAction) (void *state, char *elem_value, int elem_len); + +/* build a JsonLexContext from a text datum */ +extern JsonLexContext *makeJsonLexContext(text *json, bool need_escapes); + +/* try to parse json, and errsave(escontext) on failure */ +extern bool pg_parse_json_or_errsave(JsonLexContext *lex, JsonSemAction *sem, + struct Node *escontext); + +#define pg_parse_json_or_ereport(lex, sem) \ + (void) pg_parse_json_or_errsave(lex, sem, NULL) + +/* save an error during json lexing or parsing */ +extern void json_errsave_error(JsonParseErrorType error, JsonLexContext *lex, + struct Node *escontext); + +/* get first JSON token */ +extern JsonTokenType json_get_first_token(text *json, bool throw_error); + +extern uint32 parse_jsonb_index_flags(Jsonb *jb); +extern void iterate_jsonb_values(Jsonb *jb, uint32 flags, void *state, + JsonIterateStringValuesAction action); +extern void iterate_json_values(text *json, uint32 flags, void *action_state, + JsonIterateStringValuesAction action); +extern Jsonb *transform_jsonb_string_values(Jsonb *jsonb, void *action_state, + JsonTransformStringValuesAction transform_action); +extern text *transform_json_string_values(text *json, void *action_state, + JsonTransformStringValuesAction transform_action); + +#endif |