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Revert SQL/JSON features

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The reverts the following and makes some associated cleanups:

    commit f79b803dc: Common SQL/JSON clauses
    commit f4fb45d15: SQL/JSON constructors
    commit 5f0adec25: Make STRING an unreserved_keyword.
    commit 33a377608: IS JSON predicate
    commit 1a36bc9db: SQL/JSON query functions
    commit 606948b05: SQL JSON functions
    commit 49082c2cc: RETURNING clause for JSON() and JSON_SCALAR()
    commit 4e34747c8: JSON_TABLE
    commit fadb48b00: PLAN clauses for JSON_TABLE
    commit 2ef6f11b0: Reduce running time of jsonb_sqljson test
    commit 14d3f24fa: Further improve jsonb_sqljson parallel test
    commit a6baa4bad: Documentation for SQL/JSON features
    commit b46bcf7a4: Improve readability of SQL/JSON documentation.
    commit 112fdb352: Fix finalization for json_objectagg and friends
    commit fcdb35c32: Fix transformJsonBehavior
    commit 4cd8717af: Improve a couple of sql/json error messages
    commit f7a605f63: Small cleanups in SQL/JSON code
    commit 9c3d25e17: Fix JSON_OBJECTAGG uniquefying bug
    commit a79153b7a: Claim SQL standard compliance for SQL/JSON features
    commit a1e7616d6: Rework SQL/JSON documentation
    commit 8d9f9634e: Fix errors in copyfuncs/equalfuncs support for JSON node types.
    commit 3c633f32b: Only allow returning string types or bytea from json_serialize
    commit 67b26703b: expression eval: Fix EEOP_JSON_CONSTRUCTOR and EEOP_JSONEXPR size.

The release notes are also adjusted.

Backpatch to release 15.

Discussion: https://postgr.es/m/40d2c882-bcac-19a9-754d-4299e1d87ac7@postgresql.org
This commit is contained in:
Andrew Dunstan
2022-09-01 17:07:14 -04:00
parent 90247e742f
commit 2f2b18bd3f
60 changed files with 348 additions and 14893 deletions
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45
src/backend/utils/adt/formatting.c
View File

@ -1045,6 +1045,11 @@ typedef struct NUMProc
*L_currency_symbol;
} NUMProc;
/* Return flags for DCH_from_char() */
#define DCH_DATED 0x01
#define DCH_TIMED 0x02
#define DCH_ZONED 0x04
/* ----------
* Functions
* ----------
@ -6707,43 +6712,3 @@ float8_to_char(PG_FUNCTION_ARGS)
NUM_TOCHAR_finish;
PG_RETURN_TEXT_P(result);
}
int
datetime_format_flags(const char *fmt_str, bool *have_error)
{
bool incache;
int fmt_len = strlen(fmt_str);
int result;
FormatNode *format;
if (fmt_len > DCH_CACHE_SIZE)
{
/*
* Allocate new memory if format picture is bigger than static cache
* and do not use cache (call parser always)
*/
incache = false;
format = (FormatNode *) palloc((fmt_len + 1) * sizeof(FormatNode));
parse_format(format, fmt_str, DCH_keywords,
DCH_suff, DCH_index, DCH_FLAG, NULL);
}
else
{
/*
* Use cache buffers
*/
DCHCacheEntry *ent = DCH_cache_fetch(fmt_str, false);
incache = true;
format = ent->format;
}
result = DCH_datetime_type(format, have_error);
if (!incache)
pfree(format);
return result;
}