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Make a distinction between functions that consume subtypes and functions

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that generate subtypes.

FossilOrigin-Name: 48a92e3ad855227188a4c5afe4abbb7171761cf6fc930660084d9abeecfd91d9
This commit is contained in:
drh
2023-11-08 21:38:30 +00:00
parent b494366370
commit 243f2ec6a1
6 changed files with 76 additions and 48 deletions
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56
src/json.c
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@@ -3804,37 +3804,43 @@ static sqlite3_module jsonTreeModule = {
void sqlite3RegisterJsonFunctions(void){
#ifndef SQLITE_OMIT_JSON
static FuncDef aJsonFunc[] = {
/* Uses cache ------, ,---- Might return JSON (subtype J) */
/* Num args ________ | | ___ Flags */
/* \ | | / */
JFUNCTION(json, 1, 1, 1, 0, jsonRemoveFunc),
JFUNCTION(json_array, -1, 0, 1, 0, jsonArrayFunc),
JFUNCTION(json_array_length, 1, 1, 0, 0, jsonArrayLengthFunc),
JFUNCTION(json_array_length, 2, 1, 0, 0, jsonArrayLengthFunc),
JFUNCTION(json_error_position,1, 1, 0, 0, jsonErrorFunc),
JFUNCTION(json_extract, -1, 1, 1, 0, jsonExtractFunc),
JFUNCTION(->, 2, 1, 1, JSON_JSON, jsonExtractFunc),
JFUNCTION(->>, 2, 1, 0, JSON_SQL, jsonExtractFunc),
JFUNCTION(json_insert, -1, 1, 1, 0, jsonSetFunc),
JFUNCTION(json_object, -1, 0, 1, 0, jsonObjectFunc),
JFUNCTION(json_patch, 2, 1, 1, 0, jsonPatchFunc),
JFUNCTION(json_quote, 1, 0, 1, 0, jsonQuoteFunc),
JFUNCTION(json_remove, -1, 1, 1, 0, jsonRemoveFunc),
JFUNCTION(json_replace, -1, 1, 1, 0, jsonReplaceFunc),
JFUNCTION(json_set, -1, 1, 1, JSON_ISSET, jsonSetFunc),
JFUNCTION(json_type, 1, 1, 0, 0, jsonTypeFunc),
JFUNCTION(json_type, 2, 1, 0, 0, jsonTypeFunc),
JFUNCTION(json_valid, 1, 1, 0, 0, jsonValidFunc),
/* calls sqlite3_result_subtype() */
/* | */
/* Uses cache ______ | __ calls sqlite3_value_subtype() */
/* | | | */
/* Num args _________ | | | ___ Flags */
/* | | | | | */
/* | | | | | */
JFUNCTION(json, 1, 1, 1, 0, 0, jsonRemoveFunc),
JFUNCTION(json_array, -1, 0, 1, 1, 0, jsonArrayFunc),
JFUNCTION(json_array_length, 1, 1, 0, 0, 0, jsonArrayLengthFunc),
JFUNCTION(json_array_length, 2, 1, 0, 0, 0, jsonArrayLengthFunc),
JFUNCTION(json_error_position,1, 1, 0, 0, 0, jsonErrorFunc),
JFUNCTION(json_extract, -1, 1, 1, 0, 0, jsonExtractFunc),
JFUNCTION(->, 2, 1, 1, 0, JSON_JSON, jsonExtractFunc),
JFUNCTION(->>, 2, 1, 0, 0, JSON_SQL, jsonExtractFunc),
JFUNCTION(json_insert, -1, 1, 1, 1, 0, jsonSetFunc),
JFUNCTION(json_object, -1, 0, 1, 1, 0, jsonObjectFunc),
JFUNCTION(json_patch, 2, 1, 1, 0, 0, jsonPatchFunc),
JFUNCTION(json_quote, 1, 0, 1, 1, 0, jsonQuoteFunc),
JFUNCTION(json_remove, -1, 1, 1, 0, 0, jsonRemoveFunc),
JFUNCTION(json_replace, -1, 1, 1, 1, 0, jsonReplaceFunc),
JFUNCTION(json_set, -1, 1, 1, 1, JSON_ISSET, jsonSetFunc),
JFUNCTION(json_type, 1, 1, 0, 0, 0, jsonTypeFunc),
JFUNCTION(json_type, 2, 1, 0, 0, 0, jsonTypeFunc),
JFUNCTION(json_valid, 1, 1, 0, 0, 0, jsonValidFunc),
#if SQLITE_DEBUG
JFUNCTION(json_parse, 1, 1, 0, 0, jsonParseFunc),
JFUNCTION(json_test1, 1, 1, 0, 0, jsonTest1Func),
JFUNCTION(json_parse, 1, 1, 1, 0, 0, jsonParseFunc),
JFUNCTION(json_test1, 1, 1, 0, 1, 0, jsonTest1Func),
#endif
WAGGREGATE(json_group_array, 1, 0, 0,
jsonArrayStep, jsonArrayFinal, jsonArrayValue, jsonGroupInverse,
SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC),
SQLITE_VALUE_SUBTYPE|SQLITE_RESULT_SUBTYPE|SQLITE_UTF8|
SQLITE_DETERMINISTIC),
WAGGREGATE(json_group_object, 2, 0, 0,
jsonObjectStep, jsonObjectFinal, jsonObjectValue, jsonGroupInverse,
SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC)
SQLITE_VALUE_SUBTYPE|SQLITE_RESULT_SUBTYPE|SQLITE_UTF8|
SQLITE_DETERMINISTIC)
};
sqlite3InsertBuiltinFuncs(aJsonFunc, ArraySize(aJsonFunc));
#endif